Ajazz AK820 Pro vs MMD KM21 Ultra
Get the Ajazz AK820 Pro for 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.
Ajazz AK820 Pro
MMD KM21 Ultra
Layout size
75%
Numpad
Battery
4,000 mAh
980 mAh
Case material
ABS, Aluminum
Aluminum
Mount style
Gasket Mount
Top Mount
Display
TFT
None
- Ajazz AK820 Pro
- MMD KM21 Ultra
- Performance
- 6167
- Build quality
- 6682
- Productivity
- 8289
- Customizability
- 7289
- Portability
- 7986
- Connection: Bluetooth, 2.4 GHz, Wired
- Hot-swappable
- Knob
- Sound dampening
What owners say
Ratings and quotes collected from verified store reviews, including the critical ones.
Ajazz AK820 Pro
256 owner reviews
“It's a nice keyboard, has a nice sound when typing. I like the dedicated volume know and it's easy to load gifs onto the little screen using the ajazz software”
“So recently i started to notice my w key stop completely and have to press again and again for the input, please can you assist me in this matter”
MMD KM21 Ultra
No owner reviews collected yet.
Ajazz AK820 Pro vs MMD KM21 Ultra specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
11 of 23 specs differ
Ajazz AK820 Pro
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
Keycaps
Weight
Dimensions
Backlight
QMK
VIA
N-key rollover
Mac & Windows
Released
Compare prices
Live prices from the stores we track, cheapest in-stock offer first.
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