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Compare Keychron J8 HE vs K3 QMK V3 Differences Side by Side

Explore the comprehensive side-by-side comparison of the Keychron J8 HE and Keychron K3 QMK V3 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.

89
Keychron J8 HE 8K Magnetic Switch Keyboard
76
Keychron K3 QMK Wireless Mechanical Keyboard (ISO Layout) - Version 3

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  • Released in 2026
  • Has Linear, Tactile, Clicky switch options
  • Built with the ANSI layout standard
  • Comes with a knob
  • Supports VIA configuration
  • Has built-in sound dampening
  • Uses a Gasket Mount mounting style
  • Supports Wired, Wired only connectivity
  • Runs at a 8000 Hz polling rate
  • Weighs about 956 g
  • Sized at 30 x 148 x 329 mm
  • Made with a Plastic case
  • Features PBT keycaps
  • Released in 2024
  • Has Tactile, Linear switch options
  • Features a low-profile design
  • Built with the ISO, ISO-DE, ISO-Nordic, ISO-UK, ANSI layout standard
  • Features N-key rollover
  • Uses a Plate Mount mounting style
  • Supports Bluetooth, Wired, Wireless connectivity
  • Runs at a 1000 Hz polling rate
  • Equipped with a 1550 mAh battery
  • Weighs about 540 g
  • Sized at 19 x 306 x 116 mm
  • Made with a ABS, Aluminum case
  • Features ABS keycaps
Scores
  • Performance: 90.3
  • Build Quality: 78.3
  • Productivity: 93.1
  • Customizability: 92.7
  • Portability: 63.2
Scores
  • Performance: 84.6
  • Build Quality: 71
  • Productivity: 73.9
  • Customizability: 78.8
  • Portability: 77.8
Name
Keychron J8 HE
Name
Keychron K3 QMK V3
Release year
2026
Release year
2024
Switch Options
Linear, Tactile, Clicky
Switch Options
Tactile, Linear
Profile
Normal Profile
Profile
Low Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
75%
Layout Size
75%
Layout Standard
ANSI
Layout Standard
ISO, ISO-DE, ISO-Nordic, ISO-UK, 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, Wired, Wireless
Polling Rate
8000 Hz
Polling Rate
1000 Hz
Battery capacity
-
Battery capacity
1550 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, North-face
Case Colors
Case Colors
Case Material
Plastic
Case Material
ABS, Aluminum
Keycaps Material
PBT
Keycaps Material
ABS
Dimensions
30 x 148 x 329 mm
Dimensions
19 x 306 x 116 mm
Weight
956g
Weight
540g
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