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Head to head · Prices checked Nov 11, 2026

Redragon CASTOR K631 Pro vs Keychron Lemokey X6

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Quick verdict

Which one should you get?

Get the

Redragon CASTOR K631 Pro

Build quality in the bottom 30% of 65% boards under $50.

Get the

Keychron Lemokey X6

Build quality in the top 10% of 65% boards under $50.

Rules this board out

  • North-facing LEDs. Cherry-profile keycaps can hit the switch housing.

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 CASTOR K631 Pro

Keychron Lemokey X6

  • Connection

    Bluetooth, 2.4 GHz, Wired

    Wired

    Wireless for several devices and wired for lower latency

  • Case material

    Plastic

    ABS

  • Switch options

    Linear

    Clicky, Linear, Tactile

  • Mount style

    Bottom Mount

    Tray Mount

  • Weight

    470 g

    521 g

    Heavier boards stay planted and lighter ones travel

KeebFinder scores

How we score
  • Redragon CASTOR K631 Pro
  • Keychron Lemokey X6
Performance
71
68
Build quality
56
84
Productivity
54
93
Customizability
58
88
Portability
84
76

What they share

  • Layout size: 65%
  • Hot-swappable
  • Keycaps: ABS
See every spec side by side

Full specs

Redragon CASTOR K631 Pro vs Keychron Lemokey X6 specs

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

13 of 25 specs differ

Redragon CASTOR K631 Pro

Keychron Lemokey X6

Typing & switches

Switch options

Linear
Clicky, Linear, Tactile

Hot-swappable

Yes
Yes

Mount style

Bottom Mount
Tray Mount

Sound dampening

No
Yes

Screw-in stabilizers

No
Yes

Layout

Layout size

65%
65%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Display

None
None

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Wired

Max polling rate

—
1,000 Hz

Battery

1,600 mAh
Wired only

USB-C

Yes
Yes

Build & materials

Case material

Plastic
ABS

Plate material

—
Polycarbonate

Keycaps

ABS
ABS

Weight

470 g
521 g

Dimensions

40 x 309 x 104 mm
38 x 111 x 322 mm

Typing angle

—
11°

Backlight

RGB
Yes, north-facing

Firmware & software

QMK

No
Yes

VIA

No
Yes

N-key rollover

Yes
Yes

Mac & Windows

No
Yes

Extras

Released

2026
2024

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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