Keychron K4 Ultra vs Royal Kludge S98 ES
Get the Keychron K4 Ultra for the 4,000 mAh battery. Get the Royal Kludge S98 ES for knob.
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5.0 (2)5.0 · 2 reviews
from$114at Keychron
No reviews
from$109at Royal Kludge
Which one should you get?
Get the
Keychron K4 Ultra
Battery
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.
Get the
Royal Kludge S98 ES
Knob
Build quality in the top 45% of 96% boards under $150.
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 Ultra
Royal Kludge S98 ES
Battery
4,000 mAh
3,750 mAh
A larger battery means fewer cables during the day
Mount style
Plate Mount
Top Mount
Knob
No
Yes
Display
None
LCD
A case display rather than a typing feature
Weight
1,241 g
1,879 g
Heavier boards stay planted and lighter ones travel
- Keychron K4 Ultra
- Royal Kludge S98 ES
- Performance
- 8878
- Build quality
- 6370
- Productivity
- 8791
- Customizability
- 7579
- Portability
- 5756
- Layout size: 96%
- Connection: Bluetooth, 2.4 GHz, Wired
- Hot-swappable
- Sound dampening
Keychron K4 Ultra vs Royal Kludge S98 ES specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
11 of 25 specs differ
Keychron K4 Ultra
Royal Kludge S98 ES
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 passthrough
USB-C
Case material
Plate material
Keycaps
Weight
Dimensions
Backlight
N-key rollover
Mac & Windows
Released
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