Keychron B31 vs K12
Get the Keychron K12 for hot-swappable and the 4,000 mAh battery.
KeebFinder may earn a commission when you buy through these links, at no extra cost to you.
No reviews
from$34at MK
90-day lowLowest price in 90 days
4.8 (192)4.8 · 192 reviews
from$39at Keychron
Which one should you get?
Get the
Keychron B31
Build quality in the bottom 20% of 75% boards under $50.
- Switches are soldered. Swapping them means soldering.
- No numpad.
Get the
Keychron K12
Hot-swappable
Build quality in the top 25% of 60% boards under $50.
- North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
- Compact layout only. No function row, dedicated arrow keys, or numpad.
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 K12
Layout size
75%
60%
Connection
Bluetooth, 2.4 GHz, Wired
Bluetooth, Wired
Wireless for several devices and wired for lower latency
Hot-swappable
No
Yes
Switch changes without soldering
Battery
800 mAh
4,000 mAh
A larger battery means fewer cables during the day
Case material
ABS, Plastic
ABS, Aluminum, Plastic
- Keychron B31
- Keychron K12
- Performance
- 5958
- Build quality
- 5273
- Productivity
- 6968
- Customizability
- 4773
- Portability
- 7890
- Max polling rate: 1,000 Hz
- Switch options: Clicky, Linear, Tactile
- Keycaps: ABS
Keychron B31 vs K12 specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
9 of 22 specs differ
Keychron B31
Keychron K12
Switch options
Hot-swappable
Mount style
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
N-key rollover
Mac & Windows
Released
Compare prices
Live prices from the stores we track, cheapest in-stock offer first.
Prices in USD are converted to your currency and can change at any time. KeebFinder may earn a commission when you buy through these links, at no extra cost to you.
Lowest price across stores, Amazon excluded.
Not sold on either?
Still torn?
Answer a few quick questions and the keyboard finder ranks 2,000+ boards by how you will actually use yours.