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Compare Keychron C4 HE vs K8 Ultra Differences Side by Side

Explore the comprehensive side-by-side comparison of the Keychron C4 HE and Keychron K8 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.

90
Keychron C4 HE 8K Magnetic Switch Keyboard
88
Keychron K8 Ultra 8K Wireless Custom Mechanical Keyboard

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  • Available in a 100% layout
  • Built with the ANSI layout standard
  • Provides dedicated media keys
  • Utilizes Hall effect sensors
  • Uses a Gasket Mount mounting style
  • Supports Wired, Wired only connectivity
  • Weighs about 970 g
  • Sized at 30 x 446 x 138 mm
  • Made with a Plastic case
  • Offers Yes, Rgb, North-face, Rgb North-face RGB lighting
  • Available in a 80% layout
  • Built with the ANSI, ISO, ISO-ES layout standard
  • Features N-key rollover
  • Uses a Plate Mount mounting style
  • Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity
  • Equipped with a 4000 mAh battery
  • Weighs about 1299 g
  • Made with a Aluminum, ABS, Metal case
  • Offers Yes, Rgb, White, South-face, Rgb South-face, White South-face RGB lighting
Scores
  • Performance: 89.2
  • Build Quality: 82.8
  • Productivity: 94.9
  • Customizability: 92.5
  • Portability: 45.1
Scores
  • Performance: 90.3
  • Build Quality: 82.3
  • Productivity: 94.2
  • Customizability: 89.9
  • Portability: 76.4
Name
Keychron C4 HE
Name
Keychron K8 Ultra
Release year
2026
Release year
2026
Switch Options
Linear, Tactile, Clicky
Switch Options
Linear, Tactile, Clicky
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
100%
Layout Size
80%
Layout Standard
ANSI
Layout Standard
ANSI, ISO, ISO-ES
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
8000 Hz
Polling Rate
8000 Hz
Battery capacity
-
Battery capacity
4000 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
Plate Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb, North-face
Backlight
 
Rgb, White, South-face, White South-face
Case Colors
Case Colors
Case Material
Plastic
Case Material
Aluminum, ABS, Metal
Keycaps Material
PBT
Keycaps Material
PBT
Dimensions
30 x 446 x 138 mm
Dimensions
-
Weight
970g
Weight
1299g
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