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Head to head · Prices checked Oct 28, 2026

MMkeyboard Class 1800 vs Keychron K5 Ultra

Get the Keychron K5 Ultra for hot-swappable and knob.

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Quick verdict

Which one should you get?

Get the

MMkeyboard Class 1800

Rules this board out

  • Switches are soldered. Swapping them means soldering.
  • No ISO layout. ISO-DE, UK, and other ISO variants are not offered.

Get the

Keychron K5 Ultra

Hot-swappable

Build quality in the top 15% of 100% boards under $150.

Rules this board out

  • Low-profile switches and keycaps only. Standard MX keycaps will not fit.
  • 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.

MMkeyboard Class 1800

Keychron K5 Ultra

  • Hot-swappable

    No

    Yes

    Switch changes without soldering

  • Low profile

    No

    Yes

  • Case material

    Aluminum, Brass, Steel

    ABS, Metal, Wood

  • Knob

    No

    Yes

  • Weight

    3,500 g

    566 g

    Heavier boards stay planted and lighter ones travel

KeebFinder scores

How we score
  • MMkeyboard Class 1800
  • Keychron K5 Ultra
Performance
42
91
Build quality
80
75
Productivity
42
93
Customizability
56
89
Portability
58
56

What they share

  • QMK
See every spec side by side

Full specs

MMkeyboard Class 1800 vs Keychron K5 Ultra specs

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

13 of 25 specs differ

MMkeyboard Class 1800

Keychron K5 Ultra

Typing & switches

Switch options

—
Clicky, Linear, Tactile

Hot-swappable

No
Yes

Mount style

Top Mount
—

Low profile

No
Yes

Sound dampening

No
Yes

Layout

Layout size

—
100%

Layout standard

ANSI
ANSI, ISO, ISO-DE, ISO-ES, ISO-FR, ISO-IT, ISO-PT

Ergonomics

Standard
Standard

Knob

No
Yes

Display

None
None

Connectivity & battery

Connection

—
Bluetooth, 2.4 GHz, Wired

Max polling rate

—
8,000 Hz

Battery

—
2,600 mAh

USB-C

No
Yes

Build & materials

Case material

Aluminum, Brass, Steel
ABS, Metal, Wood

Plate material

—
Aluminum

Keycaps

—
PBT

Weight

3,500 g
566 g

Typing angle

7°
—

Backlight

None
RGB, north-facing

Firmware & software

QMK

Yes
Yes

VIA

No
Yes

N-key rollover

No
Yes

Mac & Windows

No
Yes

Extras

Released

2024
2026

For EU buyers

ISO layouts by store

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

MMkeyboard Class 1800

No ISO layout at the stores we track.

Keychron K5 Ultra

  • Keychron (DE)

    ISO-DE, ISO-FR, ISO-ES, ISO-IT

    In stockDoes not ship to you

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.

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