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Head to head · Prices checked Oct 28, 2026

MMD KM21 Ultra vs Monsgeek M1W

Get the Monsgeek M1W for the 6,000 mAh battery.

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Quick verdict

Which one should you get?

Get the

MMD KM21 Ultra

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

Rules this board out

  • No ISO layout. ISO-DE, UK, and other ISO variants are not offered.
  • Numpad only. This is not a full keyboard.
$89 at MonacoKeys

Get the

Monsgeek M1W

Battery

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 numpad.
$105 at Mechkeys

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.

MMD KM21 Ultra

Monsgeek M1W

  • Layout size

    Numpad

    75%

  • Battery

    980 mAh

    6,000 mAh

    A larger battery means fewer cables during the day

  • Mount style

    Top Mount

    Gasket Mount, Plate Mount

  • Layout standard

    ANSI

    ANSI, ISO

    ISO and JIS exist so regional layouts fit

  • Plate material

    Plastic

    Plastic, Polycarbonate

KeebFinder scores

How we score
  • MMD KM21 Ultra
  • Monsgeek M1W
Performance
67
70
Build quality
82
85
Productivity
89
97
Customizability
89
96
Portability
86
92

What they share

  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Case material: Aluminum
  • Knob
  • QMK
  • VIA
See every spec side by side

Full specs

MMD KM21 Ultra vs Monsgeek M1W specs

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

9 of 24 specs differ

MMD KM21 Ultra

Monsgeek M1W

Typing & switches

Switch options

—
Clicky, Linear, Tactile

Hot-swappable

Yes
Yes

Mount style

Top Mount
Gasket Mount, Plate Mount

Sound dampening

Yes
Yes

Screw-in stabilizers

No
Yes

Layout

Layout size

Numpad
75%

Layout standard

ANSI
ANSI, ISO

Ergonomics

Standard
Standard

Knob

Yes
Yes

Display

None
None

Connectivity & battery

Connection

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

Battery

980 mAh
6,000 mAhBetter

USB-C

Yes
Yes

Build & materials

Case material

Aluminum
Aluminum

Plate material

Plastic
Plastic, Polycarbonate

Keycaps

—
PBT

Weight

—
2,200 g

Dimensions

—
33 x 146 x 333 mm

Backlight

RGB
RGB, south-facing

Firmware & software

QMK

Yes
Yes

VIA

Yes
Yes

N-key rollover

No
Yes

Mac & Windows

Yes
Yes

Extras

Released

2026
2023

For EU buyers

ISO layouts by store

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

MMD KM21 Ultra

No ISO layout at the stores we track.

Monsgeek M1W

  • WhatGeek

    ISO

    Out of stockShips 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.

MMD KM21 Ultra2 stores
Monsgeek M1W4 stores

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