Ajazz AK992 vs Keychron J4
Get the Ajazz AK992 for knob. Get the Keychron J4 for qmk.
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Which one should you get?
Get the
Ajazz AK992
Knob
Build quality in the bottom 45% of 96% boards under $100.
- Compact full-size layout. The numpad is present, the gaps of a full-size board are not.
Get the
Keychron J4
QMK
Build quality in the top 30% of 80% boards under $100.
- North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
- No numpad.
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.
Ajazz AK992
Keychron J4
Layout size
96%
80%
Case material
ABS, Aluminum, PBT, Plastic
ABS
Knob
Yes
No
Weight
1,060 g
870 g
Heavier boards stay planted and lighter ones travel
QMK
No
Yes
The deep option when you want to remap every key
- Ajazz AK992
- Keychron J4
- Performance
- 5182
- Build quality
- 6071
- Productivity
- 8489
- Customizability
- 7489
- Portability
- 5473
- Connection: Bluetooth, 2.4 GHz, Wired
- Hot-swappable
- Battery: 4,000 mAh
- Switch options: Clicky, Linear, Tactile
- Sound dampening
- Keycaps: PBT
Ajazz AK992 vs Keychron J4 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
10 of 26 specs differ
Ajazz AK992
Keychron J4
Switch options
Hot-swappable
Mount style
Sound dampening
Layout size
Layout standard
Ergonomics
Knob
Display
Media keys
Connection
Max polling rate
Battery
USB-C
Case material
Plate material
Keycaps
Weight
Dimensions
Typing angle
Backlight
QMK
VIA
N-key rollover
Mac & Windows
Released
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