Head to head · Prices checked Nov 10, 2026

Cidoo V21 vs Yunzii C21

Get the Cidoo V21 for knob. Get the Yunzii C21 for hot-swappable and the 2,500 mAh battery.

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Knob

from$63at WhatGeek

Hot-swappable

from$54at Yunzii

Quick verdict

Which one should you get?

Get the

Cidoo V21

Knob

Build quality in the top 20% of Numpad boards under $100.

Rules this board out

Switches are soldered. Swapping them means soldering.
South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.

$63 at WhatGeek

Get the

Yunzii C21

Hot-swappable

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.
No ISO layout. ISO-DE, UK, and other ISO variants are not offered.

$54 at Yunzii

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.

Cidoo V21

Yunzii C21

Hot-swappable
No
Yes
Switch changes without soldering
Battery
1,000 mAh
2,500 mAh
A larger battery means fewer cables during the day
Knob
Yes
No
Display
None
TFT
A case display rather than a typing feature
Weight
500 g
250 g
Heavier boards stay planted and lighter ones travel

KeebFinder scores

How we score

Cidoo V21
Yunzii C21

Performance: 59
69
Build quality: 79
62
Productivity: 87
58
Customizability: 75
66
Portability: 83
88

What they share

Layout size: Numpad
Connection: Bluetooth, 2.4 GHz, Wired
Mount style: Gasket Mount
Keycaps: PBT

See every spec side by side

Full specs

Cidoo V21 vs Yunzii C21 specs

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

11 of 24 specs differ

Spec

Cidoo V21

Yunzii C21

Typing & switches

Switch options

—

Linear

Hot-swappable

Yes

Mount style

Gasket Mount

Sound dampening

Yes

Screw-in stabilizers

Yes

Layout

Layout size

Numpad

Layout standard

ISO

—

Ergonomics

Standard

Knob

Yes

Display

None

TFT

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired

Max polling rate

—

1,000 Hz

Battery

1,000 mAh

2,500 mAhBetter

USB-C

Yes

Build & materials

Case material

Aluminum

—

Plate material

Plastic

—

Keycaps

PBT

Weight

500 g

250 g

Dimensions

30 x 145 x 90 mm

39 x 153 x 98 mm

Backlight

RGB, south-facing

Firmware & software

VIA

Yes

N-key rollover

Yes

Mac & Windows

Yes

Extras

Released

2023

2026

For EU buyers

ISO layouts by store

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

Cidoo V21

WhatGeek
ISO
Out of stockShips to you

Yunzii C21

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.

Cidoo V212 stores