Keychron B31 vs K2 Max
Get the Keychron K2 Max 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 B31
Keychron K2 Max
Hot-swappable
No
Yes
Battery
800 mAh
4,000 mAh
Case material
ABS, Plastic
ABS, Aluminum
Mount style
PCB Mount
PCB Mount, Plate Mount
Weight
520 g
940 g
- Keychron B31
- Keychron K2 Max
- Performance
- 5981
- Build quality
- 5286
- Productivity
- 6995
- Customizability
- 4791
- Portability
- 7979
- Layout size: 75%
- Connection: Bluetooth, 2.4 GHz, Wired
- Max polling rate: 1,000 Hz
- Switch options: Clicky, Linear, Tactile
What owners say
Ratings and quotes collected from verified store reviews, including the critical ones.
Keychron B31
No owner reviews collected yet.
Keychron K2 Max
2 owner reviews
“Négatif: Le temps de livraison et la clareté des infos”
Keychron B31 vs K2 Max specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
14 of 26 specs differ
Keychron B31
Keychron K2 Max
Switch options
Hot-swappable
Mount style
Sound dampening
Screw-in stabilizers
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
N-key rollover
Mac & Windows
Released
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