AULA F99 vs Keychron B4 Pro
Get the AULA F99 for rapid trigger and hot-swappable.
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4.8 (33)4.8 · 33 reviews
from$63at Epomaker
90-day lowLowest price in 90 days
No reviews
from$39at Keychron
Which one should you get?
Get the
AULA F99
Rapid trigger
Build quality in the top 40% of 96% boards under $100.
- North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
Get the
Keychron B4 Pro
Build quality in the bottom 10% of 96% boards under $100.
- Switches are soldered. Swapping them means soldering.
- Low-profile switches and keycaps only. Standard MX keycaps will not fit.
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.
AULA F99
Keychron B4 Pro
Rapid trigger
Yes
No
Faster resets help in games and not in normal typing
Hot-swappable
Yes
No
Switch changes without soldering
Battery
8,000 mAh
800 mAh
A larger battery means fewer cables during the day
Low profile
No
Yes
Case material
ABS, PBT, Plastic
ABS
- AULA F99
- Keychron B4 Pro
- Performance
- 7351
- Build quality
- 7043
- Productivity
- 8671
- Customizability
- 6543
- Portability
- 6252
- Layout size: 96%
- Connection: Bluetooth, 2.4 GHz, Wired
AULA F99 vs Keychron B4 Pro specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
13 of 24 specs differ
AULA F99
Keychron B4 Pro
Switch options
Rapid trigger
Hot-swappable
Mount style
Low profile
Sound dampening
Screw-in stabilizers
Layout size
Layout standard
Ergonomics
Display
Connection
Max polling rate
Battery
USB-C
Case material
Plate material
Keycaps
Weight
Dimensions
Typing angle
Backlight
Mac & Windows
Released
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