Jamesdonkey RS2 4.0 vs Royal Kludge S85
Get the Jamesdonkey RS2 4.0 for qmk. Get the Royal Kludge S85 for the 7,200 mAh battery.
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Which one should you get?
Get the
Jamesdonkey RS2 4.0
QMK
Build quality in the top 40% of 96% boards under $100.
- Compact full-size layout. The numpad is present, the gaps of a full-size board are not.
Get the
Royal Kludge S85
Battery
Build quality in the top 30% of 80% boards under $100.
- South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
- 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.
Jamesdonkey RS2 4.0
Royal Kludge S85
Layout size
96%
80%
Battery
4,000 mAh
7,200 mAh
A larger battery means fewer cables during the day
Display
None
OLED
A case display rather than a typing feature
Weight
1,150 g
950 g
Heavier boards stay planted and lighter ones travel
QMK
Yes
No
The deep option when you want to remap every key
- Jamesdonkey RS2 4.0
- Royal Kludge S85
- Performance
- 5867
- Build quality
- 7169
- Productivity
- 9384
- Customizability
- 8274
- Portability
- 5386
- Connection: Bluetooth, 2.4 GHz, Wired
- Hot-swappable
- Mount style: Gasket Mount
- Knob
- Sound dampening
- Keycaps: PBT
Jamesdonkey RS2 4.0 vs Royal Kludge S85 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
8 of 21 specs differ
Jamesdonkey RS2 4.0
Royal Kludge S85
Switch options
Hot-swappable
Mount style
Sound dampening
Layout size
Layout standard
Ergonomics
Knob
Display
Media keys
Connection
Battery
USB-C
Case material
Keycaps
Weight
Dimensions
Backlight
QMK
Mac & Windows
Released
Compare prices
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Lowest price across stores, Amazon excluded.
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