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Head to head · Prices checked Nov 10, 2026

Redragon EISA K686 Pro SE vs Keychron Lemokey X4

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Quick verdict

Which one should you get?

Get the

Redragon EISA K686 Pro SE

Get the

Keychron Lemokey X4

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 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 EISA K686 Pro SE

Keychron Lemokey X4

  • Layout size

    90%

    75%

  • Connection

    Bluetooth, 2.4 GHz, Wired

    Wired

    Wireless for several devices and wired for lower latency

  • Case material

    Plastic

    ABS, Plastic

  • Switch options

    Linear

    Clicky, Linear, Tactile

  • Weight

    1,200 g

    712 g

    Heavier boards stay planted and lighter ones travel

KeebFinder scores

How we score
  • Redragon EISA K686 Pro SE
  • Keychron Lemokey X4
Performance
66
74
Build quality
62
82
Productivity
69
96
Customizability
58
82
Portability
49
64

What they share

  • Hot-swappable
  • Mount style: Gasket Mount
  • Knob
  • Sound dampening
See every spec side by side

Full specs

Redragon EISA K686 Pro SE vs Keychron Lemokey X4 specs

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

12 of 24 specs differ

Redragon EISA K686 Pro SE

Keychron Lemokey X4

Typing & switches

Switch options

Linear
Clicky, Linear, Tactile

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Gasket Mount

Sound dampening

Yes
Yes

Screw-in stabilizers

No
Yes

Layout

Layout size

90%
75%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
Yes

Display

None
None

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Wired

Max polling rate

—
1,000 Hz

USB-C

Yes
Yes

Build & materials

Case material

Plastic
ABS, Plastic

Plate material

—
Polycarbonate

Keycaps

PBT
ABS, PBT

Weight

1,200 g
712 g

Dimensions

60 x 430 x 60 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

2024
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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