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Head to head · Prices checked Nov 1, 2026

Redragon CENTAUR K506 vs Keychron Lemokey X4

Get the Keychron Lemokey X4 for hot-swappable and knob.

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Quick verdict

Which one should you get?

Get the

Redragon CENTAUR K506

Build quality in the bottom 25% of 100% boards under $100.

Rules this board out

  • Switches are soldered. Swapping them means soldering.

Get the

Keychron Lemokey X4

Hot-swappable

Build quality in the top 10% of 75% boards under $50.

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

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.

Redragon CENTAUR K506

Keychron Lemokey X4

  • Layout size

    100%

    75%

  • Hot-swappable

    No

    Yes

    Switch changes without soldering

  • Case material

    Plastic

    ABS, Plastic

  • Mount style

    Bottom Mount

    Gasket Mount

  • Knob

    No

    Yes

KeebFinder scores

How we score
  • Redragon CENTAUR K506
  • Keychron Lemokey X4
Performance
62
75
Build quality
47
83
Productivity
50
96
Customizability
48
83
Portability
41
65

What they share

  • Connection: Wired
See every spec side by side

Full specs

Redragon CENTAUR K506 vs Keychron Lemokey X4 specs

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

16 of 24 specs differ

Redragon CENTAUR K506

Keychron Lemokey X4

Typing & switches

Switch options

—
Clicky, Linear, Tactile

Hot-swappable

No
Yes

Mount style

Bottom Mount
Gasket Mount

Sound dampening

No
Yes

Screw-in stabilizers

No
Yes

Layout

Layout size

100%
75%

Layout standard

ISO, ISO-FR
ANSI

Ergonomics

Standard
Standard

Knob

No
Yes

Display

None
None

Connectivity & battery

Connection

Wired
Wired

Max polling rate

—
1,000 Hz

USB-C

No
Yes

Build & materials

Case material

Plastic
ABS, Plastic

Plate material

—
Polycarbonate

Keycaps

—
ABS, PBT

Weight

1,100 g
712 g

Dimensions

35 x 440 x 135 mm
41 x 325 x 145 mm

Typing angle

—
10°

Backlight

RGB
Yes, south-facing

Firmware & software

QMK

No
Yes

N-key rollover

No
Yes

Mac & Windows

No
Yes

Extras

Released

2025
2024

For EU buyers

ISO layouts by store

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

Redragon CENTAUR K506

Listed on the product, not split by store: ISO-FR.

Keychron Lemokey X4

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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