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Head to head · Prices checked Nov 11, 2026

Ajazz AK820 AS vs Keychron Lemokey X4

Get the Keychron Lemokey X4 for qmk and sound dampening.

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Quick verdict

Which one should you get?

Get the

Ajazz AK820 AS

Build quality in the top 35% of 75% boards under $50.

Rules this board out

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

Get the

Keychron Lemokey X4

QMK

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.

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.

Ajazz AK820 AS

Keychron Lemokey X4

  • Case material

    Aluminum, Plastic

    ABS, Plastic

  • Weight

    810 g

    712 g

    Heavier boards stay planted and lighter ones travel

  • QMK

    No

    Yes

    The deep option when you want to remap every key

  • Sound dampening

    No

    Yes

  • Keycaps

    PBT

    ABS, PBT

KeebFinder scores

How we score
  • Ajazz AK820 AS
  • Keychron Lemokey X4
Performance
60
74
Build quality
75
82
Productivity
82
96
Customizability
70
82
Portability
67
64

What they share

  • Layout size: 75%
  • Connection: Wired
  • Hot-swappable
  • Switch options: Clicky, Linear, Tactile
  • Mount style: Gasket Mount
  • Knob
See every spec side by side

Full specs

Ajazz AK820 AS vs Keychron Lemokey X4 specs

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

10 of 24 specs differ

Ajazz AK820 AS

Keychron Lemokey X4

Typing & switches

Switch options

Clicky, Linear, Tactile
Clicky, Linear, Tactile

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Gasket Mount

Sound dampening

No
Yes

Screw-in stabilizers

No
Yes

Layout

Layout size

75%
75%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
Yes

Display

None
None

Connectivity & battery

Connection

Wired
Wired

Max polling rate

—
1,000 Hz

USB-C

Yes
Yes

Build & materials

Case material

Aluminum, Plastic
ABS, Plastic

Plate material

—
Polycarbonate

Keycaps

PBT
ABS, PBT

Weight

810 g
712 g

Dimensions

40 x 136 x 327 mm
41 x 325 x 145 mm

Typing angle

—
10°

Backlight

White, north-facing
Yes, south-facing

Firmware & software

QMK

No
Yes

N-key rollover

No
Yes

Mac & Windows

Yes
Yes

Extras

Released

2023
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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