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Head to head · Prices checked Nov 11, 2026

Weikav Stars21 Programmable Numpad vs MelGeek O2

Get the Weikav Stars21 Programmable Numpad for hot-swappable and qmk. Get the MelGeek O2 for the 2,500 mAh battery.

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Quick verdict

Which one should you get?

Get the

Weikav Stars21 Programmable Numpad

Hot-swappable

Build quality in the top 10% of Numpad boards under $100.

Get the

MelGeek O2

Battery

Build quality in the top 50% of Numpad boards under $150.

Rules this board out

  • Switches are soldered. Swapping them means soldering.
  • 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.

Weikav Stars21 Programmable Numpad

MelGeek O2

  • Hot-swappable

    Yes

    No

    Switch changes without soldering

  • Battery

    800 mAh

    2,500 mAh

    A larger battery means fewer cables during the day

  • Case material

    Aluminum

    ABS, Aluminum, Polycarbonate

  • Weight

    480 g

    650 g

    Heavier boards stay planted and lighter ones travel

  • QMK

    Yes

    No

    The deep option when you want to remap every key

KeebFinder scores

How we score
  • Weikav Stars21 Programmable Numpad
  • MelGeek O2
Performance
75
54
Build quality
84
65
Productivity
56
53
Customizability
89
50
Portability
77
82

What they share

  • Layout size: Numpad
  • Connection: Bluetooth, 2.4 GHz, Wired
  • Max polling rate: 1,000 Hz
  • Mount style: Gasket Mount
See every spec side by side

Full specs

Weikav Stars21 Programmable Numpad vs MelGeek O2 specs

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

11 of 23 specs differ

Weikav Stars21 Programmable Numpad

MelGeek O2

Typing & switches

Switch options

Linear
—

Hot-swappable

Yes
No

Mount style

Gasket Mount
Gasket Mount

Sound dampening

No
Yes

Layout

Layout size

Numpad
Numpad

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Display

None
None

Connectivity & battery

Connection

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

Max polling rate

1,000 Hz
1,000 Hz

Battery

800 mAh
2,500 mAhBetter

Build & materials

Case material

Aluminum
ABS, Aluminum, Polycarbonate

Plate material

—
Polycarbonate

Keycaps

—
PBT

Weight

480 g
650 g

Dimensions

18 x 130 x 95 mm
135 x 326 x 27 mm

Typing angle

—
4°

Backlight

RGB
RGB, north-facing

Firmware & software

QMK

Yes
No

VIA

Yes
No

N-key rollover

Yes
No

Mac & Windows

No
Yes

Extras

Released

2025
2025

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.

MelGeek O22 stores

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