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105
Highlights
46
Differences
9
Reactions
0
Likes
Native Union (Re)Classic
vs
Anker 537:
105 Highlights & 46 Differences —
So, Which Power Bank Actually Works Better
Looking for style and portability? Native Union shines. Need power and versatility? Anker 537 takes the lead.
From maximum input power, usb-c input, pass-through charging & maximum output power to user experience, we laid out the pros and quirks of Native Union (Re)Classic vs Anker 537 in one sharp power banks breakdown.
3.05 inch shorter height
Measures the vertical dimension of the power bank.
1.04 inch
vs
4.09 inch
Build Materials & Durability
Reinforced Ports
Indicates reinforced charging ports for extended lifespan.
with a difference of 1 points
Button Durability Rated Very Good
Indicates the overall durability and longevity of the physical buttons based on build quality and expected usage.
with 1 points higher
Scratch Resistant
Indicates whether the exterior surface is resistant to scratches from daily handling and transport.
with a difference of 1 points
Uses Fire Retardant Material
Indicates use of flame-resistant materials in construction.
with a difference of 1 points
Heat Resistant
Indicates whether the power bank is designed to withstand elevated internal and external temperatures without performance degradation.
with a difference of 1 points
Native Union (Re)Classic vs Anker 537 Power Bank: Which One Fits Your Charging Needs Better?
Choosing a reliable power bank can be a challenge, especially when options like the Native Union (Re)Classic and the Anker 537 offer vastly different feature sets while serving the core function of on-the-go device charging. Both are designed primarily for smartphones and portable electronics, supporting industry-standard charging technologies such as USB Power Delivery.
However, the distinctions in their capacity, port options, design philosophy, and additional features set them apart to cater to diverse user needs. The Native Union leans into a compact, elegantly designed, eco-conscious power bank with a modest 5000mAh lithium-polymer battery. At the same time, the Anker 537 focuses on raw charging muscle with a hefty 24000mAh multi-cell battery, multiple ports, and higher output wattage.
Native Union (Re)Classic: Sleek Sustainability Meets Practical Portability
If you're after an ultra-portable power bank that fits effortlessly in your pocket or bag, the Native Union (Re)Classic is designed exactly for that. With its slim profile measuring just 4.09 by 2.76 by 0.34 inches and weighing a mere 0.49 pounds, it's travel-friendly and ideal for light, everyday smartphone charging sessions. The power bank packs a single pouch lithium-polymer cell rated at 18.5Wh, suitable for topping up your phone or smartwatch.
One of its more impressive features lies in its charging input capabilities; it supports up to 18W fast USB-C input and offers pass-through charging, allowing the device to charge your phone while recharging itself. Output performance is tailored for single-device use, with a maximum of 15W via USB-C Power Delivery, ensuring very stable voltage regulation and excellent safety protocols such as short circuit, overcharge, and even foreign object detection.
From a construction standpoint, it sports a premium aluminum and plant-based outer shell, yielding a sturdy yet lightweight chassis that resists moderate impacts and scratches. The battery indicator'saccuracy of 95% provides precise feedback on remaining power, a feature that appeals to users who value both aesthetics and practicality. Furthermore, with a 24-month warranty and up to two years of firmware support, it ensures longevity and security through smart power management features.
Anker 537: Powerhouse for Extended Multi-Device Charging
On the flip side, the Anker 537 positions itself firmly as a high-capacity charging solution. Its bulky dimensions (3.35 by 1.04 by 1.04 inches) and hefty weight of about 1.1 pounds make it less pocket-friendly but perfectly suited for charging multiple devices or even laptops on longer outings. With a substantial 24000mAh prismatic lithium-polymer battery, it delivers up to 65 watts total output across two USB-C ports. This allows simultaneous charging of several gadgets, a crucial feature for power users and professionals alike.
The charging input supports a robust 30W fast USB-C input, facilitating quicker recharge times for the power bank itself, though it does not support pass-through charging. The device embraces versatile protocols, including Quick Charge and Programmable Power Supply (PPS), alongside standard USB Power Delivery, broadening compatibility to laptops, tablets, and various smartphones.
Constructed mainly with a plastic outer shell reinforced with metal parts, the Anker 537 balances durability and weight but may lack the premium feel of the Native Union. Its safety credentials are comprehensive, with certifications like UL, CE, FCC, and a thorough suite of protections that safeguard your devices. Also included in the package are a 3-foot cable and a handy carrying case, enhancing its travel usability despite the larger size.
Quick Take
The Native Union (Re)Classic is perfect for those who prioritize portability, style, and eco-friendly materials with moderate capacity and excellent safety features, including pass-through charging. Conversely, the Anker 537 shines when you need high-capacity power for multiple devices, laptops included, with its strong output wattage and flexible protocol support.
Bottom Line
For users who want a sleek, premium power bank that easily fits in a pocket and offers smart, user-focused features with environmental considerations, the Native Union (Re)Classic is the standout choice. If you require robust charging capacity and versatility for work or travel with multiple gadgets, the Anker 537 power bank delivers unmatched power and convenience, making it the better option for heavy-duty charging needs.
Verdict
Winner: Anker 53; Best for users needing high-capacity, multi-device power delivery with faster charging and broader compatibility.
Runner-up: Native Union (Re)Classic; Ideal for those valuing portability, premium build quality, and advanced safety firmware features in a compact design.
Side by side. The numbers. The features. No drama.
This side-by-side power banks review of Native Union (Re)Classic vs Anker 537 is packed with useful info — specs, standout features, and real user takes.
General Information
12
Color Options
What color options are available?
71
Native Union (Re)Classic
0Votes
Black, White, Sand
81
Anker 537
0Votes
Black,White,Gray
Anker 537
The power bank is available in a selection of colors, including Black, White, Gray, to suit personal preferences.
Lists the available exterior color choices.
In the battle of Color Options,
Native Union (Re)Classic ◉ is
worse than
Anker 537 ◉
, delivering
lower
10 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Color Options on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Operating Temperature Maximum
What is the maximum operating temperature?
104
°F
0Votes
104
°F
0Votes
Anker 537
The maximum safe operating temperature for the device is 104 °F (40 °C).
Defines the highest ambient temperature the power bank can operate safely.
In the battle of Operating Temperature Maximum,
Native Union (Re)Classic ◉ is
same as
Anker 537 ◉
, delivering
equal
104.00 °F
measurement.
Don’t keep it to yourself — be the first to react and review the
Operating Temperature Maximum on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Product Type
What is the product type?
56
Native Union (Re)Classic
0Votes
Power Bank, MagSafe Power Bank
45
Anker 537
0Votes
Power Bank
Identifies the functional category of the portable charging device.
In the battle of Product Type,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
11 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Product Type on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Intended Use Case
What is the intended use case?
56
Native Union (Re)Classic
0Votes
Smartphone Charging
55
Anker 537
0Votes
Smartphone Charging
Describes the primary usage scenarios the power bank is designed for.
In the battle of Intended Use Case,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Intended Use Case on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Release Year
What is the release year?
71
Native Union (Re)Classic
0Votes
2023
60
Anker 537
0Votes
2022
vs
Release Year
The Native Union (Re)Classic was released in 2023, making it a newer product compared to the Anker 537, which was released in 2022. Users seeking the latest models might prefer the Native Union.
Indicates the year the product was first released to market.
In the battle of Release Year,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
11 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Release Year on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Country of Origin
Where is this product made?
36
Native Union (Re)Classic
0Votes
China
35
Anker 537
0Votes
China
States the country where the product is manufactured or assembled.
In the battle of Country of Origin,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Country of Origin on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Finish Type
What type of finish does it have?
36
Native Union (Re)Classic
0Votes
Matte
35
Anker 537
0Votes
Matte
Describes the surface finish of the exterior shell.
In the battle of Finish Type,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Finish Type on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Rugged Design
Does it have a rugged design?
No
0Votes
Native Union (Re)Classic
No
0Votes
Anker 537
Indicates whether the power bank is built for enhanced durability.
In the battle of Rugged Design,
Native Union (Re)Classic ◉ is
same as
Anker 537 ◉
.
Don’t keep it to yourself — be the first to react and review the
Rugged Design on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Waterproof Rating
What is the waterproof rating?
Who knows?
0Votes
Native Union (Re)Classic
(Help us out by suggesting one!)
Who knows?
0Votes
Anker 537
(Help us out by suggesting one!)
Shows the level of water resistance certification.
Don’t keep it to yourself — be the first to react and review the
Waterproof Rating on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Dustproof Rating
What is the dustproof rating?
Who knows?
0Votes
Native Union (Re)Classic
(Help us out by suggesting one!)
Who knows?
0Votes
Anker 537
(Help us out by suggesting one!)
Indicates protection against dust ingress.
Don’t keep it to yourself — be the first to react and review the
Dustproof Rating on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Operating Temperature Minimum
What is the minimum operating temperature?
32
°F
0Votes
32
°F
0Votes
Defines the lowest ambient temperature the power bank can operate safely.
In the battle of Operating Temperature Minimum,
Native Union (Re)Classic ◉ is
same as
Anker 537 ◉
, delivering
equal
32.00 °F
measurement.
Don’t keep it to yourself — be the first to react and review the
Operating Temperature Minimum on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Storage Temperature Range
What is the storage temperature range?
36
Native Union (Re)Classic
0Votes
32-113°F
Who knows?
0Votes
Anker 537
(Help us out by suggesting one!)
vs
Storage Temperature Range
The Native Union (Re)Classic specifies a storage temperature range of 32-113°F (0-45°C), while this information is not available for the Anker 537. Customers concerned with product longevity in varying conditions might appreciate the clarity from Native Union.
Specifies safe temperature conditions for storing the power bank when not in use.
Don’t keep it to yourself — be the first to react and review the
Storage Temperature Range on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
The Anker 537 boasts a significantly higher battery capacity of 24000 mAh compared to the Native Union (Re)Classic's 5000 mAh. Users needing to charge multiple devices or demanding more charges will find the Anker 537 more suitable.
States the total energy storage capacity of the battery cells.
In the battle of Battery Capacity,
Native Union (Re)Classic ◉ is
worse than
Anker 537 ◉
, delivering
lower
19,000.0 mAh
measurement.
Based on community votes for Battery Capacity,
Native Union (Re)Classic ◉ earned
0 votes,
less than
Anker 537 ◉,
which got 1 votes.
Overcharge protection prevents the battery from being overcharged, which helps preserve its lifespan and safety.
Prevents damage from charging beyond safe limits.
In the battle of Overcharge Protection,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Overcharge Protection on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Overdischarge protection prevents the battery from draining below a safe voltage level, which helps to maintain battery health and extend its overall lifespan.
Prevents battery depletion below safe voltage levels.
In the battle of Overdischarge Protection,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Overdischarge Protection on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Energy Rating
What is the energy rating?
18.5
Watt
0Votes
86.4
Watt
0Votes
vs
Energy Rating
The Anker 537 has a much higher energy rating of 86.4 Watts, significantly surpassing the Native Union (Re)Classic's 18.5 Watts. This indicates the Anker can store and deliver more overall energy.
Measures total energy stored expressed in watt-hours.
In the battle of Energy Rating,
Native Union (Re)Classic ◉ is
worse than
Anker 537 ◉
, delivering
lower
67.9 Watt
measurement.
Don’t keep it to yourself — be the first to react and review the
Energy Rating on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Cell Count
How many battery cells are used?
6
Native Union (Re)Classic
0Votes
1
41
Anker 537
0Votes
6
vs
Cell Count
The Native Union (Re)Classic uses a single battery cell, whereas the Anker 537 contains 6 cells. The higher cell count in the Anker 537 contributes to its much larger overall capacity and power output.
Shows the number of battery cells inside the power bank.
In the battle of Cell Count,
Native Union (Re)Classic ◉ is
worse than
Anker 537 ◉
, delivering
lower
35 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Cell Count on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Battery Configuration
What is the battery configuration?
61
Native Union (Re)Classic
0Votes
Single Cell
80
Anker 537
0Votes
Series‑Parallel Configuration
Anker 537
The battery cells are arranged in a Series‑Parallel Configuration, optimizing for both voltage and capacity requirements.
Describes how battery cells are electrically arranged to achieve desired voltage and capacity.
In the battle of Battery Configuration,
Native Union (Re)Classic ◉ is
worse than
Anker 537 ◉
, delivering
lower
19 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Battery Configuration on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Cycle Life Rating
What is the cycle life rating?
26
Native Union (Re)Classic
0Votes
300–500 Cycles
25
Anker 537
0Votes
300–500 Cycles
Native Union (Re)Classic
The battery has a cycle life rating of 300–500 Cycles, meaning it can be fully charged and discharged between 300 and 500 times before its capacity significantly degrades.
Indicates the estimated number of full charge cycles the battery can complete before noticeable capacity degradation.
In the battle of Cycle Life Rating,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Cycle Life Rating on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Battery Cell Type
What type of battery cell does it use?
81
Native Union (Re)Classic
0Votes
Pouch
70
Anker 537
0Votes
Prismatic
Indicates the physical form factor of the battery cells used.
In the battle of Battery Cell Type,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
11 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Battery Cell Type on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Battery Chemistry
What battery chemistry is used?
56
Native Union (Re)Classic
0Votes
Lithium-Polymer
55
Anker 537
0Votes
Lithium‑Polymer
Defines the chemical composition of the battery cells.
In the battle of Battery Chemistry,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Battery Chemistry on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Rated Capacity
What is the rated capacity?
5,000
mAh
0Votes
12,000
mAh
0Votes
vs
Rated Capacity
The Native Union (Re)Classic has a rated capacity of 5000 mAh, while the Anker 537 offers a substantially higher rated capacity of 12000 mAh. The Anker 537 will provide more usable power for charging devices.
Indicates the usable output capacity after conversion losses.
In the battle of Rated Capacity,
Native Union (Re)Classic ◉ is
worse than
Anker 537 ◉
, delivering
lower
7,000.0 mAh
measurement.
Don’t keep it to yourself — be the first to react and review the
Rated Capacity on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Battery Voltage
What is the battery voltage?
3.7
Volt
0Votes
3.6
Volt
0Votes
Indicates the nominal voltage of the battery pack.
In the battle of Battery Voltage,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
0.1 Volt
measurement.
Don’t keep it to yourself — be the first to react and review the
Battery Voltage on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Self-Discharge Rate
What is the self-discharge rate?
3
%
0Votes
Who knows?
0Votes
Anker 537
(Help us out by suggesting one!)
vs
Self-Discharge Rate
Native Union (Re)Classic specifies a self-discharge rate of 3%, indicating minimal power loss when stored, while this detail is not available for Anker 537. Users valuing transparent battery performance might prefer Native Union.
Indicates how much charge is lost when not in use.
Don’t keep it to yourself — be the first to react and review the
Self-Discharge Rate on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Standby Power Loss
How much power is lost in standby?
0.2
Watt
0Votes
0.5
Watt
0Votes
Measures power lost while the unit is idle.
In the battle of Standby Power Loss,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
lower
0.3 Watt
measurement.
Don’t keep it to yourself — be the first to react and review the
Standby Power Loss on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Battery Protection System
Does it include a battery protection system?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Confirms presence of integrated battery protection circuitry.
In the battle of Battery Protection System,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Battery Protection System on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Who knows?
1Votes
Native Union (Re)Classic
(Help us out by suggesting one!)
Who knows?
0Votes
Anker 537
(Help us out by suggesting one!)
vs
Pass-Through Charging
The Native Union (Re)Classic supports pass-through charging, allowing it to charge itself and a device simultaneously, but this feature is not specified for the Anker 537. This makes the Native Union more versatile for charging multiple items with one adapter.
Allows the power bank to charge devices while being charged itself.
Based on community votes for Pass-Through Charging,
Native Union (Re)Classic ◉ earned
1 votes,
more than
Anker 537 ◉,
which got 0 votes.
Anker 537 supports a higher maximum input power of 30 Watts, allowing it to recharge faster than the Native Union (Re)Classic, which has a maximum input power of 18 Watts. For quicker recharges, the Anker 537 is the better choice.
Shows the maximum power the power bank can accept while charging.
In the battle of Maximum Input Power,
Native Union (Re)Classic ◉ is
worse than
Anker 537 ◉
, delivering
lower
12.0 Watt
measurement.
Don’t keep it to yourself — be the first to react and review the
Maximum Input Power on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Confirms whether USB-C can be used as a charging input.
In the battle of USB-C Input,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
USB-C Input on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Input Port Type
What input port types are supported?
86
Native Union (Re)Classic
0Votes
USB-C
85
Anker 537
0Votes
USB-C
Native Union (Re)Classic
The USB-C input port offers a modern, reversible, and versatile connection for recharging the power bank.
Anker 537
The power bank uses a USB-C port for input, allowing for reversible connection and often faster charging speeds.
Identifies the physical port types used to recharge the power bank.
In the battle of Input Port Type,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Input Port Type on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Input Port Count
How many input ports does it have?
16
Native Union (Re)Classic
0Votes
1
15
Anker 537
0Votes
1
Native Union (Re)Classic
The power bank features a single input port, streamlining the design and focusing on a primary charging method.
Indicates how many input ports are available for charging.
In the battle of Input Port Count,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Input Port Count on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Fast Input Charging
Does it support fast input charging?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Native Union (Re)Classic
Fast input charging capability ensures that the power bank itself can be recharged quickly, minimizing downtime between uses.
Indicates whether fast-charging input standards are supported.
In the battle of Fast Input Charging,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Fast Input Charging on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Charging Efficiency
What is the charging efficiency?
85
%
0Votes
85
%
0Votes
Native Union (Re)Classic
The power bank boasts a charging efficiency of 85%, meaning 85% of the input energy is effectively transferred to the device, minimizing energy loss during charging.
Measures how efficiently input power is converted to stored energy.
In the battle of Charging Efficiency,
Native Union (Re)Classic ◉ is
same as
Anker 537 ◉
, delivering
equal
85.00 %
measurement.
Don’t keep it to yourself — be the first to react and review the
Charging Efficiency on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Charging Time
How long does it take to fully recharge?
1.5
hour
1Votes
3.5
hour
0Votes
vs
Charging Time
The Native Union (Re)Classic fully recharges in 1.5 hours, which is considerably faster than the Anker 537's charging time of 3.5 hours. For quicker power bank recharges, Native Union is more efficient.
Estimates total time required to fully recharge the power bank.
In the battle of Charging Time,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
lower
2.0 hour
measurement.
Based on community votes for Charging Time,
Native Union (Re)Classic ◉ earned
1 votes,
more than
Anker 537 ◉,
which got 0 votes.
The Native Union charges up in only 1.5 hours, which is fantastic. Waiting 3.5 hours for the Anker seems like forever.
See more
Input Voltage Range
What input voltage range is supported?
66
Native Union (Re)Classic
0Votes
5–20V
65
Anker 537
0Votes
5-20V
Specifies the supported voltage range for charging input.
In the battle of Input Voltage Range,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Input Voltage Range on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Input Current Rating
What is the input current rating?
3
Amp
0Votes
3
Amp
0Votes
Defines the maximum current the power bank can draw during charging.
In the battle of Input Current Rating,
Native Union (Re)Classic ◉ is
same as
Anker 537 ◉
, delivering
equal
3.00 Amp
measurement.
Don’t keep it to yourself — be the first to react and review the
Input Current Rating on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
50
Anker 537
0Votes
Power Delivery, Quick Charge, PPS
vs
Fast Charging Technology
Anker 537 supports multiple fast charging technologies including Power Delivery, Quick Charge, and PPS, offering broader compatibility than Native Union (Re)Classic which only supports Power Delivery. The Anker provides more versatile fast charging options for various devices.
Lists supported fast-charging standards.
In the battle of Fast Charging Technology,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
6 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Fast Charging Technology on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Anker 537 offers a maximum output power of 45 Watts, significantly higher than the Native Union (Re)Classic's 15 Watts. This allows the Anker 537 to charge devices much faster and power more demanding electronics.
Shows the highest power level supported by a single output.
In the battle of Maximum Output Power,
Native Union (Re)Classic ◉ is
worse than
Anker 537 ◉
, delivering
lower
30.0 Watt
measurement.
Based on community votes for Maximum Output Power,
Native Union (Re)Classic ◉ earned
0 votes,
less than
Anker 537 ◉,
which got 1 votes.
Defines the voltage levels supported for device charging.
In the battle of Output Voltage Range,
Native Union (Re)Classic ◉ is
worse than
Anker 537 ◉
, delivering
lower
29 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Output Voltage Range on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Represents the power delivery capability under load conditions.
In the battle of Output Current Rating,
Native Union (Re)Classic ◉ is
worse than
Anker 537 ◉
, delivering
lower
1.3 Watt
measurement.
Don’t keep it to yourself — be the first to react and review the
Output Current Rating on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Describes how consistently the power bank maintains output power under varying load conditions.
In the battle of Output Stability,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
31 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Output Stability on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Total Output Power
What is the total output power?
15
Watt
0Votes
65
Watt
1Votes
vs
Total Output Power
The Anker 537 provides a total output power of 65 Watts, which is substantially more than the Native Union (Re)Classic's 15 Watts. This higher total output power makes the Anker 537 capable of charging more demanding devices, including some laptops.
Measures the combined power available when using multiple ports.
In the battle of Total Output Power,
Native Union (Re)Classic ◉ is
worse than
Anker 537 ◉
, delivering
lower
50.0 Watt
measurement.
Based on community votes for Total Output Power,
Native Union (Re)Classic ◉ earned
0 votes,
less than
Anker 537 ◉,
which got 1 votes.
With 65W total output power, the Anker is a beast. It's perfect for charging my laptop and other gadgets, unlike the Native Union's 15W.
See more
Simultaneous Device Charging
Can it charge multiple devices simultaneously?
No
0Votes
Native Union (Re)Classic
Yes
1Votes
Anker 537
vs
Simultaneous Device Charging
The Anker 537 supports simultaneous device charging, a feature not specified for Native Union (Re)Classic. This means the Anker 537 is better suited for users who need to power multiple gadgets at once.
Indicates whether multiple devices can be charged at once.
In the battle of Simultaneous Device Charging,
Native Union (Re)Classic ◉ is
worse than
Anker 537 ◉
.
Based on community votes for Simultaneous Device Charging,
Native Union (Re)Classic ◉ earned
0 votes,
less than
Anker 537 ◉,
which got 1 votes.
Anker's simultaneous device charging is a game-changer. I need to charge multiple things at once, and Native Union just doesn't offer that convenience.
See more
Output Port Type
What output port types are available?
86
Native Union (Re)Classic
0Votes
USB-C
85
Anker 537
0Votes
USB-C
Anker 537
The power bank features a USB-C output port, supporting modern devices and high-speed charging.
Identifies the physical ports used to deliver power to devices.
In the battle of Output Port Type,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Output Port Type on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Load Detection
Does it detect connected device load?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Anker 537
Load detection automatically senses when a device is connected and begins charging, or adjusts power output accordingly.
Automatically detects connected devices to optimize power output.
In the battle of Load Detection,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Load Detection on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Low-Power Device Mode
Is there a low-power device mode?
Who knows?
0Votes
Native Union (Re)Classic
(Help us out by suggesting one!)
Who knows?
0Votes
Anker 537
(Help us out by suggesting one!)
vs
Low-Power Device Mode
Native Union (Re)Classic includes a low-power device mode, beneficial for safely charging smaller accessories, a feature not specified for Anker 537. Users with wearables or earbuds might find the Native Union more suitable.
Enables safe charging for small electronics like earbuds.
Don’t keep it to yourself — be the first to react and review the
Low-Power Device Mode on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Output Port Count
How many output ports does it have?
6
Native Union (Re)Classic
0Votes
1
25
Anker 537
0Votes
2
vs
Output Port Count
The Anker 537 provides two output ports, allowing for simultaneous charging of two devices, whereas Native Union (Re)Classic only has one output port. Users needing to charge multiple devices at once will benefit from the Anker 537.
Indicates how many devices can be physically connected at once.
In the battle of Output Port Count,
Native Union (Re)Classic ◉ is
worse than
Anker 537 ◉
, delivering
lower
19 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Output Port Count on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Power Distribution Control
Does it manage power distribution automatically?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Ensures balanced power delivery across connected devices.
In the battle of Power Distribution Control,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Power Distribution Control on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Voltage Regulation Accuracy
How accurate is the voltage regulation?
76
Native Union (Re)Classic
0Votes
Excellent
45
Anker 537
0Votes
Good
Indicates how precisely the power bank maintains target voltage levels during charging.
In the battle of Voltage Regulation Accuracy,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
31 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Voltage Regulation Accuracy on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Auto Shut-Off
Does it auto shut off when idle?
Who knows?
0Votes
Native Union (Re)Classic
(Help us out by suggesting one!)
Who knows?
0Votes
Anker 537
(Help us out by suggesting one!)
vs
Auto Shut-Off
Native Union (Re)Classic features an auto shut-off function to conserve power, which is not specified for Anker 537. This can be a convenient energy-saving feature for users of the Native Union product.
Automatically stops output when no device is connected.
Don’t keep it to yourself — be the first to react and review the
Auto Shut-Off on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
The power bank offers compatibility with Apple charging protocols, ensuring optimized and safe charging for iPhones, iPads, and other Apple devices.
Anker 537
This power bank offers compatibility with Apple devices, ensuring efficient and safe charging for iPhones, iPads, and other Apple products.
Ensures optimized charging for Apple devices.
In the battle of Apple Charging Compatibility,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Apple Charging Compatibility on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
In the battle of Samsung Charging Compatibility,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Samsung Charging Compatibility on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
The Anker 537 is capable of laptop charging, a feature not available for Native Union (Re)Classic due to its lower power output. For users needing to power laptops, the Anker 537 is the clear choice.
Indicates ability to charge laptops via USB-C output.
In the battle of Laptop Charging,
Native Union (Re)Classic ◉ is
worse than
Anker 537 ◉
.
Don’t keep it to yourself — be the first to react and review the
Laptop Charging on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
USB Power Delivery
Does it support USB Power Delivery?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Native Union (Re)Classic
USB Power Delivery (PD) support enables rapid charging for compatible devices, dynamically adjusting power output for optimal performance.
Indicates support for the USB Power Delivery fast charging standard.
In the battle of USB Power Delivery,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
USB Power Delivery on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Wearable Device
Does it support wearable devices?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Native Union (Re)Classic
This power bank is compatible with wearable devices, providing optimized charging for smartwatches, fitness trackers, and other small electronics.
Indicates compatibility with smartwatches and wearables.
In the battle of Wearable Device,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Wearable Device on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Multi-Protocol
Does it support multiple protocols?
Who knows?
0Votes
Native Union (Re)Classic
(Help us out by suggesting one!)
Who knows?
0Votes
Anker 537
(Help us out by suggesting one!)
Native Union (Re)Classic
Multi-protocol support allows the power bank to charge a wide range of devices efficiently, automatically detecting and delivering the optimal charging protocol.
Don’t keep it to yourself — be the first to react and review the
Multi-Protocol on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Quick Charge
Is Quick Charge supported?
No
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
vs
Quick Charge
Anker 537 supports Quick Charge technology, while Native Union (Re)Classic does not specify this compatibility. Users with Quick Charge compatible devices will find the Anker 537 offers faster charging.
Confirms compatibility with Qualcomm Quick Charge standards.
In the battle of Quick Charge,
Native Union (Re)Classic ◉ is
worse than
Anker 537 ◉
.
Don’t keep it to yourself — be the first to react and review the
Quick Charge on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Programmable Power Supply
Does it support PPS charging?
No
0Votes
Native Union (Re)Classic
No
0Votes
Anker 537
Indicates support for Programmable Power Supply charging.
In the battle of Programmable Power Supply,
Native Union (Re)Classic ◉ is
same as
Anker 537 ◉
.
Don’t keep it to yourself — be the first to react and review the
Programmable Power Supply on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Low-Current Device
Does it support low-current devices?
Who knows?
0Votes
Native Union (Re)Classic
(Help us out by suggesting one!)
Who knows?
0Votes
Anker 537
(Help us out by suggesting one!)
vs
Low-Current Device
Native Union (Re)Classic supports low-current devices, ensuring safe charging for smaller electronics, a feature not specified for Anker 537. This makes the Native Union more versatile for charging sensitive gadgets.
Enables safe charging for devices requiring very low current.
Don’t keep it to yourself — be the first to react and review the
Low-Current Device on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Protocol Auto-Detection
Does it auto-detect charging protocols?
Who knows?
0Votes
Native Union (Re)Classic
(Help us out by suggesting one!)
Who knows?
0Votes
Anker 537
(Help us out by suggesting one!)
Automatically selects the best protocol for each device.
Don’t keep it to yourself — be the first to react and review the
Protocol Auto-Detection on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Backward Compatibility
Is it backward compatible?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Ensures support for older devices and standards.
In the battle of Backward Compatibility,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Backward Compatibility on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Physical Dimensions & Weight
6
Weight
How much does it weigh?
0.49
lbs
1Votes
1.1
lbs
0Votes
vs
Weight
The Native Union (Re)Classic is significantly lighter at 0.49 lbs (0.22 kg) compared to the Anker 537, which weighs 1.1 lbs (0.5 kg). Users prioritizing portability will find the Native Union more appealing.
Indicates how heavy the power bank is for portability.
In the battle of Weight,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
lower
0.6 lbs
measurement.
Based on community votes for Weight,
Native Union (Re)Classic ◉ earned
1 votes,
more than
Anker 537 ◉,
which got 0 votes.
The Native Union is so much lighter at 0.49 lbs. It's way easier to carry around in my pocket every day compared to the Anker.
See more
Height
What is the height?
4.09
inch
0Votes
1.04
inch
0Votes
vs
Height
The Native Union (Re)Classic is taller at 4.09 inches (10.39 cm), while the Anker 537 is shorter at 1.04 inches (2.64 cm). This difference in height contributes to the distinct form factors of each power bank.
Measures the vertical dimension of the power bank.
In the battle of Height,
Native Union (Re)Classic ◉ is
worse than
Anker 537 ◉
, delivering
higher
3.1 inch
measurement.
Don’t keep it to yourself — be the first to react and review the
Height on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Width
What is the width?
2.76
inch
0Votes
3.35
inch
0Votes
vs
Width
The Native Union (Re)Classic has a width of 2.76 inches (7.01 cm), making it narrower than the Anker 537 which measures 3.35 inches (8.51 cm). The Native Union offers a more compact form factor.
Measures the horizontal size of the power bank.
In the battle of Width,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
lower
0.6 inch
measurement.
Don’t keep it to yourself — be the first to react and review the
Width on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Depth
What is the depth?
0.34
inch
0Votes
1.04
inch
0Votes
vs
Depth
Native Union (Re)Classic is considerably slimmer with a depth of 0.34 inches (0.86 cm) compared to the Anker 537's depth of 1.04 inches (2.64 cm). The Native Union is much more compact for portability.
Measures the front-to-back thickness of the power bank.
In the battle of Depth,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
lower
0.7 inch
measurement.
Don’t keep it to yourself — be the first to react and review the
Depth on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Pocket-Friendly Design
Is it pocket-friendly?
Who knows?
0Votes
Native Union (Re)Classic
(Help us out by suggesting one!)
Who knows?
0Votes
Anker 537
(Help us out by suggesting one!)
vs
Pocket-Friendly Design
Native Union (Re)Classic is designed to be pocket-friendly, a feature not specified for Anker 537. Its compact size makes the Native Union more convenient for on-the-go use.
Indicates whether the size is suitable for pocket carry.
Don’t keep it to yourself — be the first to react and review the
Pocket-Friendly Design on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Travel-Friendly Size
Is it travel-friendly?
Who knows?
0Votes
Native Union (Re)Classic
(Help us out by suggesting one!)
Who knows?
0Votes
Anker 537
(Help us out by suggesting one!)
vs
Travel-Friendly Size
Native Union (Re)Classic is noted for its travel-friendly size, a characteristic not explicitly stated for Anker 537. This suggests the Native Union is optimized for portability during travel.
Indicates suitability for travel and carry-on use.
Don’t keep it to yourself — be the first to react and review the
Travel-Friendly Size on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
The internal frame is constructed from Aluminum, providing a lightweight yet durable structure for the power bank's components.
Anker 537
The internal frame is constructed from a combination of Plastic, Metal, contributing to both lightweight design and structural integrity.
Describes the internal structural material supporting the battery cells.
In the battle of Internal Frame Material,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
36 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Internal Frame Material on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Indicates whether the power bank is designed to withstand elevated internal and external temperatures without performance degradation.
In the battle of Heat Resistance,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Heat Resistance on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Button Durability Rating
How durable are the buttons?
66
Native Union (Re)Classic
0Votes
Very Good
65
Anker 537
0Votes
Very Good
Native Union (Re)Classic
The buttons have a Very Good durability rating, indicating they are built to withstand frequent use without significant wear.
Anker 537
The buttons on the device have a Very Good durability rating, ensuring reliable performance over extended use.
Indicates the overall durability and longevity of the physical buttons based on build quality and expected usage.
In the battle of Button Durability Rating,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Button Durability Rating on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Port Reinforcement
Are the ports reinforced?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Anker 537
The charging ports are reinforced, enhancing their durability and resistance to wear and tear from frequent plugging and unplugging.
Indicates reinforced charging ports for extended lifespan.
In the battle of Port Reinforcement,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Port Reinforcement on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Impact Resistance Rating
What is the impact resistance rating?
46
Native Union (Re)Classic
0Votes
Moderate Impact Resistance
45
Anker 537
0Votes
Moderate Impact Resistance
Indicates the ability of the power bank to withstand shocks and physical impacts.
In the battle of Impact Resistance Rating,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Impact Resistance Rating on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Drop Resistance Height
What drop height can it survive?
3
ft
0Votes
3
ft
0Votes
vs
Drop Resistance Height
Both Native Union (Re)Classic and Anker 537 are rated for a drop resistance height of 3 feet (0.91 meters). This indicates similar levels of protection against accidental drops.
Specifies the maximum drop height the device can withstand.
In the battle of Drop Resistance Height,
Native Union (Re)Classic ◉ is
same as
Anker 537 ◉
, delivering
equal
3.00 ft
measurement.
Don’t keep it to yourself — be the first to react and review the
Drop Resistance Height on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Fire Retardant Materials
Does it use fire-retardant materials?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Indicates use of flame-resistant materials in construction.
In the battle of Fire Retardant Materials,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Fire Retardant Materials on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Scratch Resistance
Is the surface scratch resistant?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Indicates whether the exterior surface is resistant to scratches from daily handling and transport.
In the battle of Scratch Resistance,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Scratch Resistance on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Structural Reinforcement
Is there structural reinforcement?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Indicates added reinforcement for improved durability.
In the battle of Structural Reinforcement,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Structural Reinforcement on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
26
Native Union (Re)Classic
0Votes
Physical Button
25
Anker 537
0Votes
Physical Button
Describes the type of button used for control.
In the battle of Button Type,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Button Type on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Indicator Accuracy
How accurate is the battery indicator?
95
%
0Votes
10
%
0Votes
vs
Indicator Accuracy
The Native Union (Re)Classic provides a much higher indicator accuracy of 95% for its battery level, significantly more precise than Anker 537's 10%. Users who need exact battery readings will benefit from the Native Union.
Measures how accurately the indicator reflects actual remaining power.
In the battle of Indicator Accuracy,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
85.0 %
measurement.
Don’t keep it to yourself — be the first to react and review the
Indicator Accuracy on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Button Count
How many buttons are there?
21
Native Union (Re)Classic
0Votes
1
20
Anker 537
0Votes
1
Anker 537
The power bank features 1 physical button for basic control and interaction.
Indicates the number of physical control buttons.
In the battle of Button Count,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
lower
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Button Count on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Auto Sleep Feature
Does it auto sleep when idle?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Native Union (Re)Classic
The auto sleep feature conserves battery life by putting the power bank into a low-power state when no device is connected or charging is complete.
Automatically enters sleep mode when idle to save power.
In the battle of Auto Sleep Feature,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Auto Sleep Feature on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Display Type
What type of display does it have?
16
Native Union (Re)Classic
0Votes
LED Indicator
15
Anker 537
0Votes
LED Indicator
Specifies the type of display used to show power information.
In the battle of Display Type,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Display Type on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Battery Level Indicator
Does it show battery level?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Indicates whether the power bank shows remaining battery level.
In the battle of Battery Level Indicator,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Battery Level Indicator on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Remaining Time Display
Does it display remaining time?
No
0Votes
Native Union (Re)Classic
No
0Votes
Anker 537
Shows estimated remaining usage or charging time.
In the battle of Remaining Time Display,
Native Union (Re)Classic ◉ is
same as
Anker 537 ◉
.
Don’t keep it to yourself — be the first to react and review the
Remaining Time Display on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Touch Control
Does it support touch controls?
No
0Votes
Native Union (Re)Classic
No
0Votes
Anker 537
Indicates whether touch-based controls are supported.
In the battle of Touch Control,
Native Union (Re)Classic ◉ is
same as
Anker 537 ◉
.
Don’t keep it to yourself — be the first to react and review the
Touch Control on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Auto Wake Feature
Does it auto wake when a device is connected?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Automatically activates when a device is connected.
In the battle of Auto Wake Feature,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Auto Wake Feature on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
User Feedback Alerts
What user alerts are available?
21
Native Union (Re)Classic
0Votes
LED Light
20
Anker 537
0Votes
LED Light
Indicates how the device provides user feedback and alerts.
In the battle of User Feedback Alerts,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
User Feedback Alerts on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Overcurrent protection automatically shuts off power if an excessive current draw is detected, preventing damage to the power bank and connected devices.
Protects devices from excessive current flow.
In the battle of Overcurrent Protection,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Overcurrent Protection on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
A fire protection circuit is integrated to enhance safety by preventing thermal runaway and potential fire hazards.
Includes circuitry designed to prevent fire hazards.
In the battle of Fire Protection Circuit,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Fire Protection Circuit on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Prevents voltage levels from exceeding safe limits.
In the battle of Overvoltage Protection,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Overvoltage Protection on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Native Union (Re)Classic includes foreign object detection, a crucial safety feature for wireless charging, which is not specified for Anker 537. This enhances safety for the Native Union, especially for its MagSafe capability.
Detects abnormal objects or unsafe connections.
In the battle of Foreign Object Detection,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
41 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Foreign Object Detection on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
In the battle of Surge Protection,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Surge Protection on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Short Circuit Protection
Does it have short circuit protection?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Native Union (Re)Classic
Short circuit protection is a crucial safety feature that automatically cuts power if a short circuit is detected, preventing damage and potential hazards.
Prevents damage when a short circuit is detected.
In the battle of Short Circuit Protection,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Short Circuit Protection on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Thermal Protection
Does it have thermal protection?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Native Union (Re)Classic
Thermal protection mechanisms are built-in to prevent the power bank from overheating, safeguarding both the device and connected electronics.
Shuts down or limits power when overheating is detected.
In the battle of Thermal Protection,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Thermal Protection on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Safety Certification
What safety certifications does it have?
64
Native Union (Re)Classic
0Votes
FCC, RoHS
65
Anker 537
0Votes
UL, CE, FCC, RoHS
vs
Safety Certification
Anker 537 holds more safety certifications, including UL, CE, FCC, and RoHS, compared to Native Union (Re)Classic's FCC and RoHS. The Anker offers a broader range of recognized safety compliance.
Lists recognized safety and compliance certifications.
In the battle of Safety Certification,
Native Union (Re)Classic ◉ is
worse than
Anker 537 ◉
, delivering
lower
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Safety Certification on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Smart Power Management
Does it use smart power management?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Anker 537
This power bank incorporates smart power management features, optimizing power delivery for efficient and safe charging.
Dynamically manages power to maintain safe operation.
In the battle of Smart Power Management,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Smart Power Management on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Temperature Monitoring
Is temperature monitored internally?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Continuously monitors internal temperature.
In the battle of Temperature Monitoring,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Temperature Monitoring on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Electrostatic Discharge Protection
Does it protect against static discharge?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Protects internal circuits from static electricity.
In the battle of Electrostatic Discharge Protection,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Electrostatic Discharge Protection on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Airline Safety Compliance
Is it airline-safe?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Indicates compliance with airline carry-on regulations.
In the battle of Airline Safety Compliance,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Airline Safety Compliance on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Fail-Safe Shutdown
Does it have fail-safe shutdown?
Who knows?
0Votes
Native Union (Re)Classic
(Help us out by suggesting one!)
Who knows?
0Votes
Anker 537
(Help us out by suggesting one!)
vs
Fail-Safe Shutdown
Native Union (Re)Classic is equipped with a fail-safe shutdown mechanism for enhanced protection, a feature not specified for Anker 537. This provides an additional layer of safety for the Native Union product.
Automatically shuts down under critical fault conditions.
Don’t keep it to yourself — be the first to react and review the
Fail-Safe Shutdown on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Safety Firmware
Is safety firmware implemented?
Yes
0Votes
Native Union (Re)Classic
No
0Votes
Anker 537
vs
Safety Firmware
The Native Union (Re)Classic includes safety firmware, ensuring secure operation, a detail not specified for Anker 537. This suggests a more integrated approach to safety within the Native Union product.
Uses firmware logic to manage and enforce safety rules.
In the battle of Safety Firmware,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
41 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Safety Firmware on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Actively manages temperature during charging cycles.
In the battle of Charging Temperature Regulation,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Charging Temperature Regulation on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Thermal Management System
Does it have a thermal management system?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Native Union (Re)Classic
A comprehensive thermal management system is in place to regulate internal temperatures, ensuring safe and efficient operation of the power bank.
Anker 537
An advanced thermal management system ensures optimal operating temperatures, enhancing safety and extending product lifespan.
Indicates whether the power bank includes an integrated thermal management system.
In the battle of Thermal Management System,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Thermal Management System on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Heat Spread Layer
Is there a heat spread layer?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Native Union (Re)Classic
A heat spread layer is integrated to efficiently distribute heat across the device, preventing hot spots and contributing to optimal thermal performance.
Indicates the use of internal layers to evenly distribute heat.
In the battle of Heat Spread Layer,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Heat Spread Layer on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Overheat Recovery Behavior
How does it recover from overheating?
66
Native Union (Re)Classic
0Votes
Automatic Resume
65
Anker 537
0Votes
Automatic Resume
Anker 537
In case of overheating, the device will Automatic Resume operation once temperatures return to safe levels.
Defines how the system recovers after an overheat shutdown.
In the battle of Overheat Recovery Behavior,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Overheat Recovery Behavior on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Heat Dissipation Method
How does it dissipate heat?
26
Native Union (Re)Classic
0Votes
Passive Cooling, Metal Chassis
15
Anker 537
0Votes
Passive Cooling
Describes how heat is dispersed away from internal components.
In the battle of Heat Dissipation Method,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
11 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Heat Dissipation Method on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Internal Heat Sink
Is there an internal heat sink?
No
0Votes
Native Union (Re)Classic
No
0Votes
Anker 537
Indicates the presence of an internal heat sink to absorb and spread heat.
In the battle of Internal Heat Sink,
Native Union (Re)Classic ◉ is
same as
Anker 537 ◉
.
Don’t keep it to yourself — be the first to react and review the
Internal Heat Sink on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Thermal Sensor Count
How many thermal sensors are used?
36
Native Union (Re)Classic
0Votes
1
35
Anker 537
0Votes
1
Specifies how many thermal sensors are used for temperature monitoring.
In the battle of Thermal Sensor Count,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Thermal Sensor Count on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Thermal Throttling
Does it support thermal throttling?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Reduces power output automatically to prevent overheating.
In the battle of Thermal Throttling,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Thermal Throttling on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Thermal Cutoff Threshold
At what temperature does it shut down?
131
°F
0Votes
149
°F
0Votes
vs
Thermal Cutoff Threshold
Native Union (Re)Classic has a thermal cutoff threshold of 131°F (55°C), which is lower than Anker 537's 149°F (65°C). The Native Union operates with a slightly more conservative thermal safety limit.
Indicates the temperature at which the system shuts down to prevent damage.
In the battle of Thermal Cutoff Threshold,
Native Union (Re)Classic ◉ is
worse than
Anker 537 ◉
, delivering
lower
18.0 °F
measurement.
Don’t keep it to yourself — be the first to react and review the
Thermal Cutoff Threshold on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Cooling Design Type
What cooling design type is used?
46
Native Union (Re)Classic
0Votes
Passive Cooling
45
Anker 537
0Votes
Passive Cooling
Describes the overall cooling architecture used to manage internal heat during charging and discharging.
In the battle of Cooling Design Type,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Cooling Design Type on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Surface Temperature Control
Is surface temperature controlled?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Limits external surface temperature for safe handling.
In the battle of Surface Temperature Control,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Surface Temperature Control on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Discharge Temperature Regulation
Is discharge temperature regulated?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Controls temperature while powering external devices.
In the battle of Discharge Temperature Regulation,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Discharge Temperature Regulation on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
In the battle of Remote Status Monitoring,
Native Union (Re)Classic ◉ is
same as
Anker 537 ◉
.
Don’t keep it to yourself — be the first to react and review the
Remote Status Monitoring on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Bluetooth Connectivity
Does it support Bluetooth connectivity?
No
0Votes
Native Union (Re)Classic
No
0Votes
Anker 537
Indicates whether the power bank can connect wirelessly to other devices.
In the battle of Bluetooth Connectivity,
Native Union (Re)Classic ◉ is
same as
Anker 537 ◉
.
Don’t keep it to yourself — be the first to react and review the
Bluetooth Connectivity on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
App Support
Is there app support?
No
0Votes
Native Union (Re)Classic
No
0Votes
Anker 537
Confirms whether a companion mobile app is available.
In the battle of App Support,
Native Union (Re)Classic ◉ is
same as
Anker 537 ◉
.
Don’t keep it to yourself — be the first to react and review the
App Support on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Firmware Upgradable
Can the firmware be updated?
No
0Votes
Native Union (Re)Classic
No
0Votes
Anker 537
Indicates whether firmware can be updated to improve functionality.
In the battle of Firmware Upgradable,
Native Union (Re)Classic ◉ is
same as
Anker 537 ◉
.
Don’t keep it to yourself — be the first to react and review the
Firmware Upgradable on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Smart Power Monitoring
Does it offer smart power monitoring?
No
0Votes
Native Union (Re)Classic
No
0Votes
Anker 537
Provides real-time monitoring of power flow and usage.
In the battle of Smart Power Monitoring,
Native Union (Re)Classic ◉ is
same as
Anker 537 ◉
.
Don’t keep it to yourself — be the first to react and review the
Smart Power Monitoring on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Device Usage Analytics
Does it provide usage analytics?
No
0Votes
Native Union (Re)Classic
No
0Votes
Anker 537
Tracks connected device charging behavior and patterns.
In the battle of Device Usage Analytics,
Native Union (Re)Classic ◉ is
same as
Anker 537 ◉
.
Don’t keep it to yourself — be the first to react and review the
Device Usage Analytics on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Charging History Tracking
Is charging history tracked?
No
0Votes
Native Union (Re)Classic
No
0Votes
Anker 537
Records past charging sessions for review.
In the battle of Charging History Tracking,
Native Union (Re)Classic ◉ is
same as
Anker 537 ◉
.
Don’t keep it to yourself — be the first to react and review the
Charging History Tracking on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Smart Alerts
Are smart alerts available?
No
0Votes
Native Union (Re)Classic
No
0Votes
Anker 537
Sends alerts for battery status, faults, or charging completion.
In the battle of Smart Alerts,
Native Union (Re)Classic ◉ is
same as
Anker 537 ◉
.
Don’t keep it to yourself — be the first to react and review the
Smart Alerts on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Environmental & Efficiency
7
Energy Conversion Efficiency
What is the energy conversion efficiency?
85
%
0Votes
90
%
0Votes
vs
Energy Conversion Efficiency
Anker 537 achieves a higher energy conversion efficiency of 90%, surpassing Native Union (Re)Classic's 85%. This means the Anker wastes less energy during charging and discharging.
Measures how efficiently stored energy is converted into usable output power.
In the battle of Energy Conversion Efficiency,
Native Union (Re)Classic ◉ is
worse than
Anker 537 ◉
, delivering
lower
5.0 %
measurement.
Don’t keep it to yourself — be the first to react and review the
Energy Conversion Efficiency on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Idle Power Consumption
How much power is used while idle?
0.2
Watt
0Votes
0.2
Watt
0Votes
Indicates how much power is consumed when the power bank is not actively charging devices.
In the battle of Idle Power Consumption,
Native Union (Re)Classic ◉ is
same as
Anker 537 ◉
, delivering
equal
0.20 Watt
measurement.
Don’t keep it to yourself — be the first to react and review the
Idle Power Consumption on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Eco Mode
Does it support eco mode?
No
0Votes
Native Union (Re)Classic
No
0Votes
Anker 537
Enables reduced power usage to improve efficiency and battery longevity.
In the battle of Eco Mode,
Native Union (Re)Classic ◉ is
same as
Anker 537 ◉
.
Don’t keep it to yourself — be the first to react and review the
Eco Mode on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Automatic Power Optimization
Does it optimize power automatically?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Automatically adjusts output to reduce energy waste.
In the battle of Automatic Power Optimization,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Automatic Power Optimization on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Sustainable Materials
Does it use sustainable materials?
Yes
0Votes
Native Union (Re)Classic
No
0Votes
Anker 537
vs
Sustainable Materials
Native Union (Re)Classic actively uses sustainable materials in its construction, a commitment not specified for Anker 537. Environmentally conscious consumers might prefer the Native Union product.
Indicates use of environmentally friendly or recycled materials.
In the battle of Sustainable Materials,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
41 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Sustainable Materials on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Recycling Program
Is a recycling program supported?
Yes
0Votes
Native Union (Re)Classic
No
0Votes
Anker 537
vs
Recycling Program
Native Union (Re)Classic offers a recycling program, demonstrating environmental responsibility, a service not specified for Anker 537. This makes the Native Union a more eco-friendly choice post-lifecycle.
Indicates manufacturer support for recycling or take-back programs.
In the battle of Recycling Program,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
41 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Recycling Program on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Environmental Certification
What environmental certifications does it have?
81
Native Union (Re)Classic
0Votes
EPEAT, ClimatePartner
Who knows?
0Votes
Anker 537
(Help us out by suggesting one!)
vs
Environmental Certification
Native Union (Re)Classic has environmental certifications from EPEAT and ClimatePartner, while Anker 537 does not specify any environmental certifications. The Native Union provides clearer evidence of environmental considerations.
Lists recognized environmental or sustainability certifications.
Don’t keep it to yourself — be the first to react and review the
Environmental Certification on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Anker 537 includes a carrying case, offering convenient protection and portability, a feature not provided with Native Union (Re)Classic. Users who travel frequently might appreciate the added accessory from Anker.
Indicates whether a protective carrying case is included.
In the battle of Carrying Case,
Native Union (Re)Classic ◉ is
worse than
Anker 537 ◉
.
Don’t keep it to yourself — be the first to react and review the
Carrying Case on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
User Manual
Is a user manual included?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Anker 537
A user manual is included with the product, providing instructions and important information for proper use.
Indicates whether a user manual or guide is provided.
In the battle of User Manual,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
User Manual on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Cable Length
What is the cable length?
0.49
ft
0Votes
3
ft
0Votes
vs
Cable Length
Anker 537 includes a charging cable that is 3 feet (0.91 meters) long, significantly longer than the 0.49 feet (0.15 meters) cable included with Native Union (Re)Classic. The Anker provides more flexibility in charging setup.
Specifies the length of the included charging cable.
In the battle of Cable Length,
Native Union (Re)Classic ◉ is
worse than
Anker 537 ◉
, delivering
lower
2.5 ft
measurement.
Don’t keep it to yourself — be the first to react and review the
Cable Length on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Wall Adapter
Is a wall adapter included?
No
0Votes
Native Union (Re)Classic
No
0Votes
Anker 537
Indicates whether a wall charging adapter is provided.
In the battle of Wall Adapter,
Native Union (Re)Classic ◉ is
same as
Anker 537 ◉
.
Don’t keep it to yourself — be the first to react and review the
Wall Adapter on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Adapter Power Rating
What is the adapter power rating?
18
Watt
0Votes
30
Watt
0Votes
vs
Adapter Power Rating
The Anker 537 is compatible with adapters up to 30 Watts for recharging, which is higher than the 18 Watt rating for Native Union (Re)Classic. This means the Anker 537 can support faster input charging if a compatible wall adapter is used.
Specifies the power output of the included wall adapter.
In the battle of Adapter Power Rating,
Native Union (Re)Classic ◉ is
worse than
Anker 537 ◉
, delivering
lower
12.0 Watt
measurement.
Don’t keep it to yourself — be the first to react and review the
Adapter Power Rating on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Package Width
What is the package width?
Who knows?
0Votes
Native Union (Re)Classic
(Help us out by suggesting one!)
6.3
inch
0Votes
Measures the width of the retail packaging.
Don’t keep it to yourself — be the first to react and review the
Package Width on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Package Depth
What is the package depth?
Who knows?
0Votes
Native Union (Re)Classic
(Help us out by suggesting one!)
2
inch
0Votes
Measures the depth of the retail packaging.
Don’t keep it to yourself — be the first to react and review the
Package Depth on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Package Height
What is the package height?
Who knows?
0Votes
Native Union (Re)Classic
(Help us out by suggesting one!)
8.7
inch
0Votes
Measures the height of the retail packaging.
Don’t keep it to yourself — be the first to react and review the
Package Height on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Native Union (Re)Classic offers a longer warranty length of 24 months, exceeding Anker 537's 18 months. Customers valuing extended product protection will find the Native Union more appealing.
Indicates the duration of the manufacturer warranty.
In the battle of Warranty Length,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
6 score
measurement.
Based on community votes for Warranty Length,
Native Union (Re)Classic ◉ earned
1 votes,
more than
Anker 537 ◉,
which got 0 votes.
In the battle of Technical Support Availability,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Technical Support Availability on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Who knows?
0Votes
Anker 537
(Help us out by suggesting one!)
vs
Firmware Support Duration
Native Union (Re)Classic specifies a firmware support duration of 2 years, ensuring ongoing updates and maintenance, a detail not available for Anker 537. This provides long-term assurance for Native Union users.
Indicates how long the manufacturer provides firmware updates and software support.
Don’t keep it to yourself — be the first to react and review the
Firmware Support Duration on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Replacement Policy
Is there a replacement policy?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Native Union (Re)Classic
A replacement policy is in place, offering consumers options for product exchange in the event of manufacturing defects or other eligible issues.
Anker 537
A replacement policy is available, offering options for product replacement under certain conditions.
Indicates eligibility for replacement in case of defects.
In the battle of Replacement Policy,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Replacement Policy on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Battery Warranty Coverage
Is the battery covered by warranty?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Anker 537
The product includes battery warranty coverage, providing assurance for the battery's performance and longevity.
Indicates whether the battery itself is covered under warranty.
In the battle of Battery Warranty Coverage,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Battery Warranty Coverage on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Support Channels
What support channels are available?
36
Native Union (Re)Classic
0Votes
Email, Phone
45
Anker 537
0Votes
Email, Phone, Live Chat
vs
Support Channels
Anker 537 provides more support channels, including Email, Phone, and Live Chat, compared to Native Union (Re)Classic which offers Email and Phone. Customers seeking varied options for technical assistance might prefer Anker's broader reach.
Lists available customer support contact methods.
In the battle of Support Channels,
Native Union (Re)Classic ◉ is
worse than
Anker 537 ◉
, delivering
lower
9 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Support Channels on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Repair Service Availability
Are repair services available?
Yes
0Votes
Native Union (Re)Classic
Yes
0Votes
Anker 537
Confirms whether repair services are offered.
In the battle of Repair Service Availability,
Native Union (Re)Classic ◉ is
better than
Anker 537 ◉
, delivering
higher
1 score
measurement.
Don’t keep it to yourself — be the first to react and review the
Repair Service Availability on Native Union (Re)Classic ◉
vs Anker 537 ◉ and help others decide!
Surveys
Because hot takes deserve votes.
Charging Speed Performance
How fast does this power bank recharge devices in everyday use?
Ultra fast charging — Under 1.5 hours
0Votes
0Votes
Very fast charging — 1.5 to 3 hours
0Votes
0Votes
Moderate charging — 3 to 5 hours
0Votes
0Votes
Slow charging — 5 to 8 hours
0Votes
0Votes
Very slow charging — Over 8 hours
0Votes
0Votes
Battery Capacity Satisfaction
How satisfied are you with the battery capacity of this power bank for daily needs?
Massive capacity for multiple days — Over 30000 mAh
0Votes
0Votes
Very high capacity — 20000 to 30000 mAh
0Votes
0Votes
Solid everyday capacity — 10000 to 19999 mAh
0Votes
0Votes
Limited capacity — 5000 to 9999 mAh
0Votes
0Votes
Barely useful capacity — Under 5000 mAh
0Votes
0Votes
Output Power and Device Support
How well does this power bank handle charging different devices at once?
Handles everything with ease — 100 W or more
0Votes
0Votes
Strong multi device support — 60 to 99 W
0Votes
0Votes
Good for phones and tablets — 30 to 59 W
0Votes
0Votes
Basic output only — 15 to 29 W
0Votes
0Votes
Struggles with most devices — Under 15 W
0Votes
0Votes
Port Selection and Flexibility
How flexible is this power bank when it comes to charging ports?
Covers all modern needs — USB C and USB A with fast charge
0Votes
0Votes
Very versatile — Multiple USB C and USB A ports
0Votes
0Votes
Good variety — USB C and USB A basic support
0Votes
0Votes
Limited options — Single USB C or USB A port
0Votes
0Votes
Very restrictive — One slow USB port only
0Votes
0Votes
Size and Portability
How easy is this power bank to carry around daily?
Pocket friendly and lightweight — Under 8 ounces
0Votes
0Votes
Easy to carry — 8 to 12 ounces
0Votes
0Votes
Manageable but noticeable — 12 to 18 ounces
0Votes
0Votes
Bulky for daily carry — 18 to 24 ounces
0Votes
0Votes
Too heavy to carry around — Over 24 ounces
0Votes
0Votes
Build Quality and Durability
How durable does this power bank feel during regular use?
Feels extremely solid and long lasting — Over 5 years expected use
0Votes
0Votes
Very durable — 3 to 5 years expected use
0Votes
0Votes
Decent build quality — 2 to 3 years expected use
0Votes
0Votes
Feels fragile — 1 to 2 years expected use
0Votes
0Votes
Cheap and unreliable — Under 1 year expected use
0Votes
0Votes
Charging Stability
How stable is the charging output from this power bank during use?
Rock solid with no drops — Voltage variation under 3 percent
0Votes
0Votes
Very stable — 3 to 5 percent variation
0Votes
0Votes
Mostly stable — 5 to 8 percent variation
0Votes
0Votes
Occasional drops — 8 to 12 percent variation
0Votes
0Votes
Unstable charging — Over 12 percent variation
0Votes
0Votes
Heat and Safety Performance
How well does this power bank control heat during charging and heavy use?
Stays cool and safe — Under 95 F
0Votes
0Votes
Slightly warm but comfortable — 95 to 104 F
0Votes
0Votes
Warm but acceptable — 104 to 113 F
0Votes
0Votes
Gets quite hot — 113 to 122 F
0Votes
0Votes
Uncomfortably hot and concerning — Over 122 F
0Votes
0Votes
Battery Efficiency
How efficiently does this power bank convert stored energy into usable charging power?
Highly efficient with minimal loss — Over 90 percent efficiency
0Votes
0Votes
Very efficient — 85 to 90 percent efficiency
0Votes
0Votes
Decent efficiency — 75 to 84 percent efficiency
0Votes
0Votes
Noticeable energy loss — 65 to 74 percent efficiency
0Votes
0Votes
Poor efficiency — Under 65 percent efficiency
0Votes
0Votes
Travel Friendliness
How convenient is this power bank for travel and daily commuting?
Perfect for travel and flights — No airline issues
0Votes
0Votes
Very travel friendly — Easy to pack and carry
0Votes
0Votes
Fine for occasional travel — Manageable size and weight
0Votes
0Votes
Awkward to carry on trips — Bulky or heavy
0Votes
0Votes
Not suitable for travel — Restricted or impractical
Supermod
Moderator
Recaptor
0
Cartling
