KeebFinder
Not sure which keyboard to choose? Try the Keyboard Finder now!

Compare Keychron J3 SE vs K4 V3 Differences Side by Side

Explore the comprehensive side-by-side comparison of the Keychron J3 SE and Keychron K4 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.

82
Keychron J3 SE QMK Wireless Mechanical Keyboard
91
Keychron K4 QMK Wireless Mechanical Keyboard (ISO Layout) - Version 3

Select a keyboard to compare

0.0 (0)
5.0 (4)
  • Released in 2026
  • Built with the ANSI layout standard
  • Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity
  • Weighs about 1145 g
  • Sized at 43 x 406 x 139 mm
  • Made with a ABS case
  • Features PBT keycaps
  • Offers Yes, Rgb, White, North-face, Rgb North-face, White North-face RGB lighting
  • Released in 2025
  • Built with the ISO, ISO-UK, ISO-DE, ISO-CH, ISO-Nordic, ANSI layout standard
  • Provides dedicated media keys
  • Includes screw-in stabilizers
  • Uses a Tray Mount mounting style
  • Supports Bluetooth, Wired, Wireless connectivity
  • Made with a Plastic case
  • Features PC, PBT keycaps
  • Offers Yes, Rgb, White, South-face, Rgb South-face, White South-face, North-face, Rgb North-face, White North-face RGB lighting
Scores
  • Performance: 81.5
  • Build Quality: 70.7
  • Productivity: 89.1
  • Customizability: 86.3
  • Portability: 53.8
Scores
  • Performance: 81.8
  • Build Quality: 84.1
  • Productivity: 95.2
  • Customizability: 97.6
  • Portability: 54.2
Name
Keychron J3 SE
Name
Keychron K4 V3
Release year
2026
Release year
2025
Switch Options
Linear, Tactile, Clicky
Switch Options
Linear, Tactile, Clicky
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
96%
Layout Size
96%
Layout Standard
ANSI
Layout Standard
ISO, ISO-UK, ISO-DE, ISO-CH, ISO-Nordic, 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, Wired, Wireless
Polling Rate
1000 Hz
Polling Rate
1000 Hz
Battery capacity
4000 mAh
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
-
Mount Style
Tray Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb, White, North-face
Backlight
 
Rgb, White, South-face, White South-face, North-face
Case Colors
Case Colors
Case Material
ABS
Case Material
Plastic
Keycaps Material
PBT
Keycaps Material
PC, PBT
Dimensions
43 x 406 x 139 mm
Dimensions
-
Weight
1145g
Weight
-
*Something incorrect or missing? Please
let me know
!

Discover similar products

You might also like similar products in that price range:

96
$99
Keychron V6 Max QMK Wireless Custom Mechanical Keyboard ISO Layout Collection
Keychron V6 Max
100%,
Hotswap,
Wireless,
Wired,
RGB,
Knob,
VIA,
QMK,
Gasket Mount

92
$69
Keychron K4 Pro QMK/VIA Wireless Mechanical Keyboard
Keychron K4 Pro
96%,
Hotswap,
Wireless,
Wired,
RGB/ White LEDs,
VIA,
QMK,
Tray Mount

-21% off
96
$134$106
Keychron K10 HE Wireless Magnetic Switch Custom Keyboard ISO Layout Collection
Keychron K10 HE
100%,
Hotswap,
Wireless,
Wired,
RGB,
VIA,
QMK,
HE,
Rapid trigger,
Alu case,
Tray Mount

93
$84
Keychron K10 QMK Wireless Mechanical Keyboard (ISO Layout) - Version 2
Keychron K10 V2
100%,
Hotswap,
Wireless,
Wired,
RGB/ White LEDs,
VIA,
QMK,
Alu case,
Tray Mount

97
$99
Keychron V5 Max QMK Wireless Custom Mechanical Keyboard ISO Layout Collection
Keychron V5 Max
96%,
Hotswap,
Wireless,
Wired,
RGB,
Knob,
VIA,
QMK,
Gasket Mount

92
$118
Keychron K4 HE Wireless Magnetic Switch Custom Keyboard ISO Layout Collection
Keychron K4 HE
96%,
Hotswap,
Wireless,
Wired,
RGB,
VIA,
QMK,
HE,
Rapid trigger,
Alu case,
Tray Mount

95
$90
Keychron Q5 QMK Custom Mechanical Keyboard
Keychron Q5
96%,
Hotswap,
Wired,
RGB,
Knob,
VIA,
QMK,
Alu case,
Gasket Mount

95
$100
Keychron Q6 QMK Custom Mechanical Keyboard
Keychron Q6
100%,
Hotswap,
Wired,
RGB,
Knob,
VIA,
QMK,
Alu case,
Gasket Mount

89
$95
Keychron K10 Max QMK Wireless Mechanical Keyboard ISO Layout Collection
Keychron K10 Max
100%,
Hotswap,
Wireless,
Wired,
RGB/ White LEDs,
VIA,
QMK,
PCB Mount

87
$99
Keychron K4 Max QMK Wireless Mechanical Keyboard ISO Layout Collection
Keychron K4 Max
96%,
Hotswap,
Wireless,
Wired,
RGB/ White LEDs,
VIA,
QMK,
PCB Mount