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Head to head · Prices checked Oct 31, 2026

8BitDo Retro87 vs Zuoya GMK21 Numpad

Get the 8BitDo Retro87 for n-key rollover and mac & windows. Get the Zuoya GMK21 Numpad for qmk and via.

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Quick verdict

Which one should you get?

Get the

8BitDo Retro87

N-key rollover

Build quality in the bottom 40% of 80% boards under $150.

Rules this board out

  • No numpad.
$109 at Mechkeys

Get the

Zuoya GMK21 Numpad

QMK

Build quality in the top 10% of Numpad boards under $50.

Rules this board out

  • Numpad only. This is not a full keyboard.
$35 at ktechs

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.

8BitDo Retro87

Zuoya GMK21 Numpad

  • Layout size

    80%

    Numpad

  • QMK

    No

    Yes

    The deep option when you want to remap every key

  • VIA

    No

    Yes

    GUI remapping without compiling firmware

  • N-key rollover

    Yes

    No

  • Mac & Windows

    Yes

    No

KeebFinder scores

How we score
  • 8BitDo Retro87
  • Zuoya GMK21 Numpad
Performance
63
62
Build quality
53
79
Productivity
73
65
Customizability
68
94
Portability
77
65

What they share

  • Hot-swappable
  • Knob
See every spec side by side

Full specs

8BitDo Retro87 vs Zuoya GMK21 Numpad specs

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

7 of 23 specs differ

8BitDo Retro87

Zuoya GMK21 Numpad

Typing & switches

Switch options

Clicky
—

Hot-swappable

Yes
Yes

Mount style

Top Mount
—

Layout

Layout size

80%
Numpad

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
Yes

Display

None
None

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
—

Max polling rate

1,000 Hz
—

Battery

4,000 mAh
—

USB-C

Yes
No

Build & materials

Case material

Aluminum, Plastic
—

Plate material

Aluminum
—

Keycaps

ABS
—

Weight

1,100 g
—

Dimensions

46 x 169 x 376 mm
—

Backlight

RGB
RGB

Firmware & software

QMK

No
Yes

VIA

No
Yes

N-key rollover

Yes
No

Mac & Windows

Yes
No

Extras

Released

2024
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.

8BitDo Retro873 stores
Zuoya GMK21 Numpad2 stores

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