Cidoo V21 vs MMD KM21 Ultra
Get the Cidoo V21 for the 1,000 mAh battery. Get the MMD KM21 Ultra for hot-swappable and qmk.
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.
Cidoo V21
MMD KM21 Ultra
Hot-swappable
No
Yes
Battery
1,000 mAh
980 mAh
Mount style
Gasket Mount
Top Mount
QMK
No
Yes
Layout standard
ISO
ANSI
- Cidoo V21
- MMD KM21 Ultra
- Performance
- 6067
- Build quality
- 7982
- Productivity
- 8889
- Customizability
- 7589
- Portability
- 8386
- Layout size: Numpad
- Connection: Bluetooth, 2.4 GHz, Wired
- Case material: Aluminum
- Knob
- VIA
- Sound dampening
Cidoo V21 vs MMD KM21 Ultra specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
8 of 22 specs differ
Cidoo V21
MMD KM21 Ultra
Hot-swappable
Mount style
Sound dampening
Screw-in stabilizers
Layout size
Layout standard
Ergonomics
Knob
Display
Connection
Battery
USB-C
Case material
Plate material
Keycaps
Weight
Dimensions
Backlight
QMK
VIA
Mac & Windows
Released
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