AULA F99 vs Keychron K4 Ultra
Get the AULA F99 for rapid trigger and the 8,000 mAh battery.
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4.8 · 33 reviews
from$79at Epomaker
5.0 · 2 reviews
from$114at Keychron
Which one should you get?
Get the
AULA F99
Rapid trigger
Build quality in the bottom 40% of 96% boards under $100.
- North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
Get the
Keychron K4 Ultra
Build quality in the bottom 40% of 96% boards under $150.
- South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
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 K4 Ultra
Rapid trigger
Yes
No
Faster resets help in games and not in normal typing
Battery
8,000 mAh
4,000 mAh
A larger battery means fewer cables during the day
Case material
ABS, PBT, Plastic
ABS
Switch options
Linear
Clicky, Linear, Tactile
Mount style
Gasket Mount
Plate Mount
- AULA F99
- Keychron K4 Ultra
- Performance
- 5888
- Build quality
- 5663
- Productivity
- 8787
- Customizability
- 6575
- Portability
- 6257
- Layout size: 96%
- Connection: Bluetooth, 2.4 GHz, Wired
- Hot-swappable
- Sound dampening
- Keycaps: PBT
What owners say
Ratings and quotes collected from verified store reviews, including the critical ones.
AULA F99
33 owner reviews
“I am really enjoying using AULA f99! UX is 10/10 The only negative thing is the battery indicator, I find it quite confusing therefore I turned it off alltogether.”
“Good product - poor service. The order wasnt filed and the stock ran out. Then for the replacement item to be filled it took way too long for the order to arrive and complete a customer build.”
Keychron K4 Ultra
2 owner reviews
“Quality keyboard. I just wish the indicator lights for caps lock and num lock was brighter. Even tried increasing it on the software but it isn't enough.”
AULA F99 vs Keychron K4 Ultra specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
12 of 24 specs differ
AULA F99
Keychron K4 Ultra
Switch options
Rapid trigger
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
Backlight
N-key rollover
Mac & Windows
Released
Compare prices
Live prices from the stores we track, cheapest in-stock offer first.
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Lowest price across stores, Amazon excluded.
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