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Head to head · Prices checked Nov 2, 2026

Weikav Stars21 Programmable Numpad vs Yunzii C21

Get the Weikav Stars21 Programmable Numpad for qmk and via. Get the Yunzii C21 for the 2,500 mAh battery.

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Quick verdict

Which one should you get?

Get the

Weikav Stars21 Programmable Numpad

QMK

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

Get the

Yunzii C21

Battery

Build quality in the bottom 50% of Numpad boards under $100.

Rules this board out

  • 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.

Weikav Stars21 Programmable Numpad

Yunzii C21

  • Battery

    800 mAh

    2,500 mAh

    A larger battery means fewer cables during the day

  • Display

    None

    TFT

    A case display rather than a typing feature

  • Weight

    480 g

    250 g

    Heavier boards stay planted and lighter ones travel

  • QMK

    Yes

    No

    The deep option when you want to remap every key

  • VIA

    Yes

    No

    GUI remapping without compiling firmware

KeebFinder scores

How we score
  • Weikav Stars21 Programmable Numpad
  • Yunzii C21
Performance
75
70
Build quality
84
63
Productivity
57
58
Customizability
89
66
Portability
77
88

What they share

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

Full specs

Weikav Stars21 Programmable Numpad vs Yunzii C21 specs

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

10 of 21 specs differ

Weikav Stars21 Programmable Numpad

Yunzii C21

Typing & switches

Switch options

Linear
Linear

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Gasket Mount

Layout

Layout size

Numpad
Numpad

Layout standard

ANSI
—

Ergonomics

Standard
Standard

Display

None
TFT

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

USB-C

No
Yes

Build & materials

Case material

Aluminum
—

Keycaps

—
PBT

Weight

480 g
250 g

Dimensions

18 x 130 x 95 mm
39 x 153 x 98 mm

Backlight

RGB
RGB, south-facing

Firmware & software

QMK

Yes
No

VIA

Yes
No

N-key rollover

Yes
Yes

Mac & Windows

No
Yes

Extras

Released

2025
2026

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.

Yunzii C212 stores

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