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Compare Ajazz AK820 Pro vs Epomaker RT85 Differences Side by Side

This comparison is for buyers deciding between two feature-rich, 75% wireless mechanical keyboards that both include a TFT screen. The Ajazz AK820 Pro and Epomaker RT85 share a gasket-mounted design, tri-mode connectivity, and hot-swappable PCBs, making the choice difficult. The decision hinges on whether you prioritize a significantly larger battery and a joystick, or a lighter build with a partial aluminum case at a lower cost.

76
Ajazz AK820 Pro
71
EPOMAKER RT85

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4.6 (739)
4.9 (35)
  • Released in 2023
  • Has Linear switch options
  • Comes with a knob
  • Equipped with a 4000 mAh battery
  • Weighs about 810 g
  • Sized at 40 x 327 x 136 mm
  • Made with a ABS, Aluminum case
  • Released in 2025
  • Has Linear, Tactile, Silent switch options
  • Runs at a 1000 Hz polling rate
  • Equipped with a 8000 mAh battery
  • Weighs about 1000 g
  • Sized at 40 x 360 x 138 mm
  • Made with a Plastic case
Scores
  • Performance: 60.9
  • Build Quality: 66.6
  • Productivity: 82.4
  • Customizability: 72.7
  • Portability: 79.1
Scores
  • Performance: 75.1
  • Build Quality: 67.2
  • Productivity: 76.8
  • Customizability: 68.3
  • Portability: 91.7
Name
Ajazz AK820 Pro
Name
Epomaker RT85
Release year
2023
Release year
2025
Switch Options
Linear
Switch Options
Linear, Tactile, Silent
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
75%
Layout Size
75%
Layout Standard
ANSI
Layout Standard
ANSI
Layout Ergonomics
Normal
Layout Ergonomics
Normal
Knob Support
 
Knob Support
 
Display Support
 
TFT
Display Support
 
TFT
Mac/Win Support
 
Mac/Win Support
 
Multi-Media Keys
 
Multi-Media Keys
 
USB-C
 
USB-C
 
USB passthrough
 
USB passthrough
 
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate
-
Polling Rate
1000 Hz
Battery capacity
4000 mAh
Battery capacity
8000 mAh
Hall Effect Support
 
Hall Effect Support
 
QMK Support
 
QMK Support
 
VIA Support
 
VIA Support
 
VIAL Support
 
VIAL Support
 
N-Key Rollover
 
N-Key Rollover
 
Rapid Trigger
 
Rapid Trigger
 
Mount Style
Gasket Mount
Mount Style
Gasket Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb, South-face
Backlight
 
Rgb, South-face
Case Colors
Case Colors
Case Material
ABS, Aluminum
Case Material
Plastic
Keycaps Material
PBT
Keycaps Material
PBT
Dimensions
40 x 327 x 136 mm
Dimensions
40 x 360 x 138 mm
Weight
810g
Weight
1000g
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Pros and Trade-offs

Your priority dictates the choice. If ultimate battery life, a unique joystick for controls, and detailed sound dampening are worth the extra weight and cost, the Epomaker RT85 is the more feature-complete package. If you want a solid core experience with a lighter build, metal accent, and a lower price, the Ajazz AK820 Pro delivers excellent value. Both are competent keyboards that share a surprising number of high-end features for their class.

Ajazz AK820 Pro

  • +Lighter weight at 810g (0.8kg) for better portability.
  • +Case combines ABS plastic with aluminum for a more premium partial construction.
  • +Generally available at a lower price point than the RT85.
  • +Includes a metal knob for media control.
  • −Smaller 4000mAh battery compared to the RT85's 8000mAh.
  • −Only linear switch options are listed in its specifications.
  • −Lacks the dedicated joystick and adjustable kickstand of the RT85.

Epomaker RT85

  • +Massive 8000mAh battery for exceptionally long wireless use.
  • +Includes a functional joystick for volume and RGB control.
  • +Offers a choice of linear, tactile, and silent pre-lubed switches.
  • +Features an adjustable kickstand with three typing angles.
  • +Product listing specifies a detailed five-layer sound dampening system.
  • −Heavier at 1000g (1kg) and longer, making it less portable.
  • −Case is listed as plastic, without a metal accent.
  • −Typically commands a higher price than the AK820 Pro.

Which Keyboard Is Better for Your Needs?

The Epomaker RT85 holds advantages for gaming, office, and content creation due to its specified low latency, enormous battery, joystick, and ergonomic adjustments. The Ajazz AK820 Pro is the clearer choice for travel thanks to its lower weight. For programming and modding, the keyboards are closely matched, sharing core features like the 75% layout, hot-swap, and gasket-mount design.

GamingEpomaker RT85
  • •The RT85's listed 1000Hz polling rate and 6ms latency in wired mode are specified for gaming responsiveness.
  • •Its 1kg weight provides a more stable, planted feel during intense sessions.
  • •The included joystick offers quick volume and RGB control without moving your hands from the home row.
OfficeEpomaker RT85
  • •The massive 8000mAh battery offers up to 320 hours of use with the screen off, reducing charging frequency.
  • •Adjustable kickstand with three typing angles (5, 6.7, 10 degrees) allows for better ergonomic positioning.
  • •Offers silent tactile switch options, which are not listed for the AK820 Pro.
ProgrammingTie
  • •Both use a 75% ANSI layout with function keys, preserving essential keys in a compact form.
  • •Both feature hot-swappable 5-pin sockets for easy switch customization to personal preference.
  • •Both have PBT keycaps for durability, though the RT85 uses a Cherry profile and the AK820 Pro uses OEM.
TravelAjazz AK820 Pro
  • •The AK820 Pro is notably lighter at 810g (0.8kg) compared to the RT85's 1000g (1kg).
  • •It has slightly smaller dimensions (327mm vs 360mm in length).
  • •Its 4000mAh battery is still substantial for portable use.
ModdingTie
  • •Both keyboards are hot-swappable and support 5-pin mechanical switches.
  • •Both feature a gasket mount and flex-cut PC plate for a customizable typing feel.
  • •The RT85 listing details five layers of sound-dampening foam (PORON, IXPE, PET, EPDM, silicone), while the AK820 Pro mentions sound dampening and a flex-cut PCB.
Content CreationEpomaker RT85
  • •The RT85's joystick provides tactile, on-the-fly control for media volume and muting.
  • •Its larger 1.47-inch screen offers more space for custom GIFs or pixel art, according to its description.
  • •The adjustable kickstand supports varied desk setups for long editing sessions.

Frequently Asked Questions (FAQ)

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