Keychron K4 Pro vs K5 Ultra
Get the Keychron K4 Pro for the 4,000 mAh battery. Get the Keychron K5 Ultra for the 8,000 Hz polling rate.
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 K4 Pro
Keychron K5 Ultra
Layout size
96%
100%
Connection
Bluetooth, Wired
Bluetooth, 2.4 GHz, Wired
Battery
4,000 mAh
2,600 mAh
Low profile
No
Yes
Max polling rate
1,000 Hz
8,000 Hz
- Keychron K4 Pro
- Keychron K5 Ultra
- Performance
- 8191
- Build quality
- 8475
- Productivity
- 9593
- Customizability
- 9689
- Portability
- 5356
- Hot-swappable
- Switch options: Clicky, Linear, Tactile
- QMK
- VIA
- Sound dampening
What owners say
Ratings and quotes collected from verified store reviews, including the critical ones.
Keychron K4 Pro
7 owner reviews
“I previously had a normal K4 and i love the new one, the only thing is that the stabilizers lube work is kinda bad and the space bar was very rattly but after some lube work the K4 pro retakes the perfect productivity keyboard.”
Keychron K5 Ultra
4 owner reviews
“This keyboard is exactly what I was looking for. Low profile, great switches, not uber gamery. Very happy so far, hopefully it keeps working for a long time.”
Keychron K4 Pro vs K5 Ultra specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
15 of 28 specs differ
Keychron K4 Pro
Keychron K5 Ultra
Switch options
Hot-swappable
Mount style
Low profile
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
Compare prices
Live prices from the stores we track, cheapest in-stock offer first.
Lowest price across stores, Amazon excluded.
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