Keychron 81 Pro vs B31
Get the Keychron 81 Pro for hot-swappable and the 4,000 mAh battery.
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5.0 (4)5.0 · 4 reviews
from$145at Input Gear
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from$34at MK
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Which one should you get?
Get the
Keychron 81 Pro
Hot-swappable
Build quality in the top 5% of 75% boards under $150.
- South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
Get the
Keychron B31
Build quality in the bottom 20% of 75% boards under $50.
- Switches are soldered. Swapping them means soldering.
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 81 Pro
Keychron B31
Connection
Bluetooth, Wired
Bluetooth, 2.4 GHz, Wired
Wireless for several devices and wired for lower latency
Hot-swappable
Yes
No
Switch changes without soldering
Battery
4,000 mAh
800 mAh
A larger battery means fewer cables during the day
Case material
Aluminum
ABS, Plastic
Mount style
Gasket Mount, Plate Mount
PCB Mount
- Keychron 81 Pro
- Keychron B31
- Performance
- 8259
- Build quality
- 8752
- Productivity
- 9769
- Customizability
- 9447
- Portability
- 8278
- Layout size: 75%
- Max polling rate: 1,000 Hz
- Switch options: Clicky, Linear, Tactile
Keychron 81 Pro vs B31 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
15 of 27 specs differ
Keychron 81 Pro
Keychron B31
Switch options
Hot-swappable
Mount style
Sound dampening
Screw-in stabilizers
Layout size
Layout standard
Ergonomics
Knob
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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