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Head to head · Prices checked Nov 10, 2026

Keychron K2 Ultra vs Zuoya LMK81

Get the Keychron K2 Ultra for sound dampening and screw-in stabilizers. Get the Zuoya LMK81 for knob.

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Quick verdict

Which one should you get?

Get the

Keychron K2 Ultra

Sound dampening

Build quality in the top 10% of 75% boards under $150.

Rules this board out

  • South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
$119 at MK

Get the

Zuoya LMK81

Knob

Build quality in the top 10% of 75% boards under $150.

Rules this board out

  • 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.
$100 at ktechs

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 K2 Ultra

Zuoya LMK81

  • Case material

    ABS, Aluminum

    Aluminum

  • Knob

    No

    Yes

  • Sound dampening

    Yes

    No

  • Layout standard

    ANSI, ISO, ISO-ES, ISO-FR, ISO-IT

    ANSI

    ISO and JIS exist so regional layouts fit

  • Screw-in stabilizers

    Yes

    No

    Easier to tune than the plate-mount stabs you get prebuilt

KeebFinder scores

How we score
  • Keychron K2 Ultra
  • Zuoya LMK81
Performance
90
73
Build quality
86
84
Productivity
94
87
Customizability
92
94
Portability
82
81

What they share

  • Layout size: 75%
  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Mount style: Gasket Mount
  • QMK
  • VIA
See every spec side by side

Full specs

Keychron K2 Ultra vs Zuoya LMK81 specs

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

8 of 26 specs differ

Keychron K2 Ultra

Zuoya LMK81

Typing & switches

Switch options

Clicky, Linear, Tactile
—

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Gasket Mount

Sound dampening

Yes
No

Screw-in stabilizers

Yes
No

Layout

Layout size

75%
75%

Layout standard

ANSI, ISO, ISO-ES, ISO-FR, ISO-IT
ANSI

Ergonomics

Standard
Standard

Knob

No
Yes

Display

None
None

Media keys

Yes
No

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Bluetooth, 2.4 GHz, Wired

Max polling rate

8,000 Hz
—

Battery

4,000 mAh
—

USB-C

Yes
Yes

Build & materials

Case material

ABS, Aluminum
Aluminum

Plate material

Steel
—

Keycaps

PBT
—

Weight

1,084 g
—

Dimensions

31 x 312 x 122 mm
—

Backlight

RGB, south-facing
RGB, south-facing

Firmware & software

QMK

Yes
Yes

VIA

Yes
Yes

N-key rollover

Yes
No

Mac & Windows

Yes
Yes

Extras

Released

2026
2025

For EU buyers

ISO layouts by store

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

Keychron K2 Ultra

  • Keychron (DE)

    ISO-FR, ISO-ES, ISO-IT

    In stockDoes not ship to you

Zuoya LMK81

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.

Prices in USD are converted to your currency and can change at any time. KeebFinder may earn a commission when you buy through these links, at no extra cost to you.

Lowest price across stores, Amazon excluded.

Keychron K2 Ultra4 stores
Zuoya LMK812 stores

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