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Compare Ajazz NK68 vs Keychron B31 Differences Side by Side

Explore the comprehensive side-by-side comparison of the Ajazz NK68 and Keychron B31 and view their biggest differences. The detailed comparison table allows you to see all the essential features, specifications, and benefits of each keyboard at a glance. Whether you're looking for performance, value, or specific functionalities, this comparison tool helps you make an informed decision.

Ajazz NK68 Wired Mechanical Keyboard
Keychron B31 Wireless Keyboard

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  • Released in 2025
  • Has Linear switch options
  • Available in a 65% layout
  • Supports Wired, Wired only connectivity
  • Weighs about 500 g
  • Sized at 34 x 327 x 114 mm
  • Offers Yes, Rgb RGB lighting
  • Released in 2026
  • Has Linear, Tactile, Clicky switch options
  • Available in a 75% layout
  • Provides dedicated media keys
  • Features N-key rollover
  • Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity
  • Runs at a 1000 Hz polling rate
  • Equipped with a 800 mAh battery
  • Weighs about 520 g
  • Sized at 26 x 138 x 327 mm
  • Made with a ABS, Plastic case
  • Features ABS keycaps
  • Offers No RGB lighting
Scores
  • Performance: 55.1
  • Build Quality: 44
  • Productivity: 59.7
  • Customizability: 53.5
  • Portability: 72
Scores
  • Performance: 57.1
  • Build Quality: 41.9
  • Productivity: 67
  • Customizability: 45.5
  • Portability: 78.1
Name
Ajazz NK68
Name
Keychron B31
Release year
2025
Release year
2026
Switch Options
Linear
Switch Options
Linear, Tactile, Clicky
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
65%
Layout Size
75%
Layout Standard
ANSI
Layout Standard
ANSI
Layout Ergonomics
Normal
Layout Ergonomics
Normal
Knob Support
 
Knob Support
 
Display Support
 
Display Support
 
Mac/Win Support
 
Mac/Win Support
 
Multi-Media Keys
 
Multi-Media Keys
 
USB-C
 
USB-C
 
USB passthrough
 
USB passthrough
 
Connection
Wired, Wired only
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate
-
Polling Rate
1000 Hz
Battery capacity
-
Battery capacity
800 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
-
Mount Style
-
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb
Backlight
 
Case Colors
Case Colors
Case Material
-
Case Material
ABS, Plastic
Keycaps Material
-
Keycaps Material
ABS
Dimensions
34 x 327 x 114 mm
Dimensions
26 x 138 x 327 mm
Weight
500g
Weight
520g
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