zFrontier Soso pad Numpad vs MMD KM21 Ultra
Get the MMD KM21 Ultra for the 980 mAh battery and knob.
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![[In Stock] Soso-pad Customizable Wireless Fingerprint ID Numpad](https://cdn.shopify.com/s/files/1/1674/0405/files/Soso-Pad_3-3.jpg?v=1772105505&width=3840&quality=75)
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.
zFrontier Soso pad Numpad
MMD KM21 Ultra
Battery
700 mAh
980 mAh
A larger battery means fewer cables during the day
Mount style
Gasket Mount
Top Mount
Knob
No
Yes
QMK
No
Yes
The deep option when you want to remap every key
Plate material
FR4
Plastic
- zFrontier Soso pad Numpad
- MMD KM21 Ultra
- Performance
- 4667
- Build quality
- 7782
- Productivity
- 6289
- Customizability
- 5389
- Portability
- 8386
- Layout size: Numpad
- Connection: Bluetooth, 2.4 GHz, Wired
- Hot-swappable
- Case material: Aluminum
- VIA
- Sound dampening
zFrontier Soso pad Numpad vs MMD KM21 Ultra specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
7 of 20 specs differ
zFrontier Soso pad Numpad
MMD KM21 Ultra
Switch options
Hot-swappable
Mount style
Sound dampening
Layout size
Layout standard
Ergonomics
Knob
Display
Connection
Battery
USB-C
Case material
Plate material
Typing angle
Backlight
QMK
VIA
Mac & Windows
Released
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