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Compare Keychron K2 Ultra vs K5 Ultra Differences Side by Side

Explore the comprehensive side-by-side comparison of the Keychron K2 Ultra and Keychron K5 Ultra 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
85
Keychron K5 Ultra 8K Wireless Custom Mechanical Keyboard ISO Layout Collection

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  • Available in a 75% layout
  • Built with the ISO-ES, ISO-FR, ISO-IT, ISO, ANSI layout standard
  • Provides dedicated media keys
  • Includes screw-in stabilizers
  • Uses a Gasket Mount mounting style
  • Equipped with a 4000 mAh battery
  • Weighs about 1084 g
  • Sized at 31 x 312 x 122 mm
  • Made with a Aluminum, ABS case
  • Offers Yes, Rgb, White, South-face, Rgb South-face, White South-face RGB lighting
  • Features a low-profile design
  • Available in a 100% layout
  • Built with the ISO-DE, ISO-ES, ISO-FR, ISO-IT, ISO-PT, ISO, ANSI layout standard
  • Equipped with a 2600 mAh battery
  • Weighs about 566 g
  • Made with a ABS, Wood, Metal case
  • Offers Yes, Rgb, White, North-face, Rgb North-face, White North-face RGB lighting
Scores
  • Performance: 91.2
  • Build Quality: 86
  • Productivity: 97.6
  • Customizability: 95.1
  • Portability: 81.6
Scores
  • Performance: 91.4
  • Build Quality: 75.6
  • Productivity: 92.6
  • Customizability: 89.9
  • Portability: 57
Name
Keychron K2 Ultra
Name
Keychron K5 Ultra
Release year
2026
Release year
2026
Switch Options
Tactile, Linear, Clicky
Switch Options
Tactile, Linear, Clicky
Profile
Normal Profile
Profile
Low Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
75%
Layout Size
100%
Layout Standard
ISO-ES, ISO-FR, ISO-IT, ISO, ANSI
Layout Standard
ISO-DE, ISO-ES, ISO-FR, ISO-IT, ISO-PT, ISO, 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
8000 Hz
Battery capacity
4000 mAh
Battery capacity
2600 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
-
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb, White, South-face, White South-face
Backlight
 
Rgb, White, North-face
Case Colors
Case Colors
Case Material
Aluminum, ABS
Case Material
ABS, Wood, Metal
Keycaps Material
PBT
Keycaps Material
PBT
Dimensions
31 x 312 x 122 mm
Dimensions
-
Weight
1084g
Weight
566g
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