Keychron J4 QMK vs Royal Kludge S85
Get the Keychron J4 QMK for qmk. Get the Royal Kludge S85 for the 7,200 mAh battery and knob.
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 QMK
Royal Kludge S85
Battery
4,000 mAh
7,200 mAh
Knob
No
Yes
Display
None
OLED
Weight
870 g
950 g
QMK
Yes
No
- Keychron J4 QMK
- Royal Kludge S85
- Performance
- 7967
- Build quality
- 6169
- Productivity
- 8484
- Customizability
- 7474
- Portability
- 7386
- Layout size: 80%
- Connection: Bluetooth, 2.4 GHz, Wired
- Hot-swappable
- Sound dampening
- Keycaps: PBT
Keychron J4 QMK vs Royal Kludge S85 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
9 of 23 specs differ
Keychron J4 QMK
Royal Kludge S85
Hot-swappable
Mount style
Sound dampening
Layout size
Layout standard
Ergonomics
Knob
Display
Connection
Max polling rate
Battery
USB-C
Case material
Plate material
Keycaps
Weight
Dimensions
Typing angle
Backlight
QMK
N-key rollover
Mac & Windows
Released
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