Keychron J4 vs K12
Get the Keychron J4 for qmk and via.
The differences that matter
Skip the 40-row spec sheet. These are the specs that change how each board feels, sounds, and fits your desk.
Keychron J4
Keychron K12
Layout size
80%
60%
Connection
Bluetooth, 2.4 GHz, Wired
Bluetooth, Wired
QMK
Yes
No
VIA
Yes
No
Sound dampening
Yes
No
- Keychron J4
- Keychron K12
- Performance
- 7058
- Build quality
- 7174
- Productivity
- 7469
- Customizability
- 8674
- Portability
- 6690
- Hot-swappable
- Battery: 4,000 mAh
- Max polling rate: 1,000 Hz
- Switch options: Clicky, Linear, Tactile
What owners say
Ratings and quotes collected from verified store reviews, including the critical ones.
Keychron J4
No owner reviews collected yet.
Keychron K12
192 owner reviews
“I have recently bought a Keychron K12, and I'm really satisfied with it. You can say that the build quality is high, and I love the sound of the switches.”
“Bought this in December 2023. The good first: - the typing experience is genuinely fantastic. The plastic case creates this resonant, almost bass-cabinet effect that makes every keystroke satisfying. - Gateron G Pro Red switches are solid as always. For pure…”
Keychron J4 vs K12 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
10 of 21 specs differ
Keychron J4
Keychron K12
Switch options
Hot-swappable
Mount style
Sound dampening
Layout size
Layout standard
Ergonomics
Display
Media keys
Connection
Max polling rate
Battery
USB-C
Case material
Plate material
Keycaps
Backlight
QMK
VIA
Mac & Windows
Released
Compare prices
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