Keychron J4 vs Royal Kludge RK Sink87G
Get the Keychron J4 for hot-swappable and the 4,000 mAh battery.
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
Royal Kludge RK Sink87G
Hot-swappable
Yes
No
Battery
4,000 mAh
1,850 mAh
QMK
Yes
No
VIA
Yes
No
Sound dampening
Yes
No
- Keychron J4
- Royal Kludge RK Sink87G
- Performance
- 7059
- Build quality
- 7143
- Productivity
- 7459
- Customizability
- 8649
- Portability
- 6667
- Layout size: 80%
- Connection: Bluetooth, 2.4 GHz, Wired
Keychron J4 vs Royal Kludge RK Sink87G specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
11 of 23 specs differ
Keychron J4
Royal Kludge RK Sink87G
Switch options
Hot-swappable
Sound dampening
Layout size
Layout standard
Ergonomics
Display
Media keys
Connection
Max polling rate
Battery
USB-C
Case material
Plate material
Keycaps
Weight
Dimensions
Typing angle
Backlight
QMK
VIA
Mac & Windows
Released
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