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Head to head · Prices checked Nov 9, 2026

Weikav Stars21 Programmable Numpad vs Keychron K0 MaxFull-Size vs Low-Profile Numpads

Choose the Weikav Stars21 for a premium, moddable kit and the Keychron K0 Max for a ready-to-use, low-profile accessory with a knob.

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Quick verdict

Which one should you get?

Get the

Weikav Stars21 Programmable Numpad

Full-Size

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

If you want

  • Gasket mount design for a flexible typing feel.
  • Full CNC aluminum case construction.
  • Sold as a DIY kit for hands-on assembly and customization.

Get the

Keychron K0 Max

Low-Profile Numpads

Build quality in the top 5% of Numpad boards under $100.

If you want

  • Pre-built and ready to use with switches and keycaps included.
  • Unique low-profile design with LSA profile PBT keycaps.
  • Includes a rotary encoder knob and a dedicated macro column.

Rules this board out

  • Low-profile switches and keycaps only. Standard MX keycaps will not fit.
  • North-facing LEDs. Cherry-profile keycaps can hit the switch housing.

Bottom line

Your primary need dictates the choice. If you want a sleek, ready-to-use accessory with a knob for creative controls, the Keychron K0 Max is the straightforward pick. If you enjoy building keyboards and want a premium, moddable numpad with a gasket-mounted aluminum case, the Weikav Stars21 kit offers that foundation. Both deliver excellent programmability and wireless flexibility.

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

Keychron K0 Max

  • Battery

    800 mAh

    750 mAh

    A larger battery means fewer cables during the day

  • Low profile

    No

    Yes

  • Case material

    Aluminum

    Aluminum, Plastic

  • Switch options

    Linear

    Clicky, Linear, Silent, Tactile

  • Mount style

    Gasket Mount

    Plate Mount

KeebFinder scores

How we score
  • Weikav Stars21 Programmable Numpad
  • Keychron K0 Max
Performance
75
79
Build quality
84
85
Productivity
57
95
Customizability
89
92
Portability
77
86

What they share

  • Layout size: Numpad
  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Max polling rate: 1,000 Hz
  • QMK
  • VIA
See every spec side by side

Best for

What will you mostly use it for?

The Keychron K0 Max wins for office use, travel, and content creation due to its pre-built convenience, slim form factor, and included knob. The Weikav Stars21 is the clear choice for modders seeking a gasket-mounted kit. For gaming and programming, both are equally capable, with the choice boiling down to a preference for low-profile versus standard-height key switches and keycaps.

For gaming

It's a tie

  • Both offer a 1000 Hz polling rate in wired and 2.4 GHz modes for low latency.
  • Both support N-key rollover for simultaneous key presses.
  • The choice depends on preference for low-profile (K0 Max) or standard-height keys (Stars21).

Full specs

Weikav Stars21 Programmable Numpad vs Keychron K0 Max specs

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

11 of 25 specs differ

Weikav Stars21 Programmable Numpad

Keychron K0 Max

Typing & switches

Switch options

Linear
Clicky, Linear, Silent, Tactile

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Plate Mount

Low profile

No
Yes

Sound dampening

No
Yes

Screw-in stabilizers

No
Yes

Layout

Layout size

Numpad
Numpad

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

No
Yes

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 mAhBetter
750 mAh

USB-C

No
Yes

Build & materials

Case material

Aluminum
Aluminum, Plastic

Keycaps

—
PBT, POM

Weight

480 g
—

Dimensions

18 x 130 x 95 mm
—

Backlight

RGB
RGB, north-facing

Firmware & software

QMK

Yes
Yes

VIA

Yes
Yes

N-key rollover

Yes
Yes

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.

FAQ

Weikav Stars21 Programmable Numpad vs Keychron K0 Max: your questions

The Weikav Stars21 is a standard-height mechanical numpad sold as a DIY kit with a full aluminum case. The Keychron K0 Max is an ultra-slim, low-profile numpad that comes pre-assembled with low-profile keycaps and switches.

No. According to Keychron, the K0 Max is only compatible with Gateron or Keychron low-profile mechanical switches. It does not support standard-profile switches or low-profile optical switches.

Yes. Both the Weikav Stars21 and Keychron K0 Max support triple-mode connectivity: wired USB, 2.4 GHz wireless, and Bluetooth.

Both are excellent, supporting QMK and VIA for deep customization. The Keychron K0 Max has a dedicated column of macro keys and a knob, while every key on the Weikav Stars21 can be remapped to any function or macro.

No. The vendor listing describes the Stars21 as a kit, which typically means it requires the user to supply their own switches and keycaps for assembly.

Both offer a 1000 Hz polling rate for minimal latency when using the wired or 2.4 GHz wireless connection. The polling rate drops to 125 Hz when using Bluetooth mode on both devices.

The Keychron K0 Max specifically mentions including IXPE acoustic foam and latex foam inside the case to dampen sound. The Weikav Stars21 vendor description does not mention any included sound-dampening materials.

Yes, for both. They support VIA, a graphical configurator that runs in a browser, and QMK for firmware-based remapping. Keychron also offers its own web-based Launcher app for the K0 Max.

Yes, the manufacturer lists Mac/Win support for the Keychron K0 Max. The vendor description for the Weikav Stars21 does not specify operating system compatibility.

The Keychron K0 Max comes with low-profile, double-shot PBT keycaps in an LSA (low profile spherical-angled) profile. The Weikav Stars21 kit does not include keycaps.

The Weikav Stars21 has an 800mAh battery. The Keychron K0 Max has a slightly smaller 750mAh battery. Some user reviews for the K0 Max note that battery life may be shorter than expected.

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