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Head to head · Prices checked Nov 13, 2026

Zuoya GMK21 Numpad vs Nuphy Halo IO

Get the Zuoya GMK21 Numpad for knob and via. Get the Nuphy Halo IO for n-key rollover and mac & windows.

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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.

Zuoya GMK21 Numpad

Nuphy Halo IO

  • Knob

    Yes

    No

  • VIA

    Yes

    No

    GUI remapping without compiling firmware

  • N-key rollover

    No

    Yes

  • Mac & Windows

    No

    Yes

  • USB-C

    No

    Yes

KeebFinder scores

How we score
  • Zuoya GMK21 Numpad
  • Nuphy Halo IO
Performance
61
72
Build quality
79
74
Productivity
65
66
Customizability
94
75
Portability
65
89

What they share

  • Layout size: Numpad
  • Hot-swappable
  • QMK
See every spec side by side

Full specs

Zuoya GMK21 Numpad vs Nuphy Halo IO specs

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

5 of 20 specs differ

Zuoya GMK21 Numpad

Nuphy Halo IO

Typing & switches

Switch options

—
Linear, Tactile

Hot-swappable

Yes
Yes

Mount style

—
Gasket Mount

Layout

Layout size

Numpad
Numpad

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
No

Display

None
None

Connectivity & battery

Connection

—
Bluetooth, 2.4 GHz, Wired

Max polling rate

—
1,000 Hz

Battery

—
4,000 mAh

USB-C

No
Yes

Build & materials

Case material

—
Aluminum, Polycarbonate

Plate material

—
POM

Backlight

RGB
RGB

Firmware & software

QMK

Yes
Yes

VIA

Yes
No

N-key rollover

No
Yes

Mac & Windows

No
Yes

Extras

Released

2026
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.

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