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Head to head · Prices checked Nov 11, 2026

Keychron K4 V3 vs Royal Kludge S98 FR

Get the Keychron K4 V3 for the 4,000 mAh battery. Get the Royal Kludge S98 FR for the 4,000 Hz polling rate and knob.

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Quick verdict

Which one should you get?

Get the

Keychron K4 V3

Battery

Build quality in the top 5% of 96% boards under $100.

Rules this board out

  • North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
  • South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.

Get the

Royal Kludge S98 FR

polling rate

Build quality in the bottom 45% of 96% boards under $150.

Rules this board out

  • No ISO layout. ISO-DE, UK, and other ISO variants are not offered.

What actually differs

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 V3

Royal Kludge S98 FR

  • Connection

    Bluetooth, Wired

    Bluetooth, 2.4 GHz, Wired

    Wireless for several devices and wired for lower latency

  • Battery

    4,000 mAh

    3,750 mAh

    A larger battery means fewer cables during the day

  • Max polling rate

    1,000 Hz

    4,000 Hz

    Higher polling helps competitive FPS and does nothing for typing

  • Knob

    No

    Yes

  • Display

    None

    LCD

    A case display rather than a typing feature

KeebFinder scores

How we score
  • Keychron K4 V3
  • Royal Kludge S98 FR
Performance
82
85
Build quality
87
66
Productivity
95
91
Customizability
96
79
Portability
54
57

What they share

  • Layout size: 96%
  • Hot-swappable
  • Sound dampening
See every spec side by side

Full specs

Keychron K4 V3 vs Royal Kludge S98 FR specs

Every tracked spec, side by side. Rows marked with a dot differ between the boards.

12 of 27 specs differ

Keychron K4 V3

Royal Kludge S98 FR

Typing & switches

Switch options

Clicky, Linear, Tactile
—

Hot-swappable

Yes
Yes

Mount style

Tray Mount
—

Sound dampening

Yes
Yes

Screw-in stabilizers

Yes
Yes

Layout

Layout size

96%
96%

Layout standard

ANSI, ISO, ISO-CH, ISO-DE, ISO-Nordic, ISO-UK
ANSI

Ergonomics

Standard
Standard

Knob

No
Yes

Display

None
LCD

Media keys

Yes
No

Connectivity & battery

Connection

Bluetooth, Wired
Bluetooth, 2.4 GHz, Wired

Max polling rate

1,000 Hz
4,000 HzBetter

Battery

4,000 mAhBetter
3,750 mAh

USB passthrough

No
Yes

USB-C

Yes
Yes

Build & materials

Case material

Aluminum, Plastic
—

Keycaps

PBT, PC
ABS

Weight

—
1,879 g

Dimensions

—
42 x 409 x 140 mm

Typing angle

5°
—

Backlight

RGB, south-facing
RGB

Firmware & software

QMK

Yes
No

VIA

Yes
No

N-key rollover

Yes
Yes

Mac & Windows

Yes
Yes

Extras

Released

2025
2025

For EU buyers

ISO layouts by store

Which stores sell ISO-DE, UK, and the other regional layouts.

Keychron K4 V3

  • Keychron

    ISO-DE, ISO-UK, ISO-Nordic, ISO-CH

    In stockShips to you

Royal Kludge S98 FR

No ISO layout at the stores we track.

Where to buy

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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