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Compare Keychron K2 Ultra vs Zuoya LMK81 Differences Side by Side

Explore the comprehensive side-by-side comparison of the Keychron K2 Ultra and Zuoya LMK81 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.

93
Keychron K2 Ultra 8K Wireless Custom Mechanical Keyboard ISO Layout Collection
87
LMK81 Barebones Kit

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5.0 (1)
0.0 (0)
  • Released in 2026
  • Has Tactile, Linear, Clicky switch options
  • Built with the ISO-ES, ISO-FR, ISO-IT, ISO, ANSI layout standard
  • Provides dedicated media keys
  • Features N-key rollover
  • Includes screw-in stabilizers
  • Has built-in sound dampening
  • Runs at a 8000 Hz polling rate
  • Equipped with a 4000 mAh battery
  • Weighs about 1084 g
  • Sized at 31 x 312 x 122 mm
  • Made with a Aluminum, ABS case
  • Features PBT keycaps
  • Offers Yes, Rgb, White, South-face, Rgb South-face, White South-face RGB lighting
  • Released in 2025
  • Built with the ANSI layout standard
  • Made with a Aluminum case
  • Offers Yes, Rgb, South-face, Rgb South-face RGB lighting
Scores
  • Performance: 91.3
  • Build Quality: 86.3
  • Productivity: 97.6
  • Customizability: 95.2
  • Portability: 82.3
Scores
  • Performance: 73.7
  • Build Quality: 84.2
  • Productivity: 86.8
  • Customizability: 95.5
  • Portability: 80.6
Name
Keychron K2 Ultra
Name
Zuoya LMK81
Release year
2026
Release year
2025
Switch Options
Tactile, Linear, Clicky
Switch Options
-
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
75%
Layout Size
75%
Layout Standard
ISO-ES, ISO-FR, ISO-IT, ISO, 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
Bluetooth, 2.4 GHz, Wired, Wireless
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate
8000 Hz
Polling Rate
-
Battery capacity
4000 mAh
Battery capacity
-
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, White, South-face, White South-face
Backlight
 
Rgb, South-face
Case Colors
Case Colors
Case Material
Aluminum, ABS
Case Material
Aluminum
Keycaps Material
PBT
Keycaps Material
-
Dimensions
31 x 312 x 122 mm
Dimensions
-
Weight
1084g
Weight
-
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