Compare Weikav Stars21 Programmable Numpad vs Keychron K0 Max Differences Side by Side

This comparison is for users seeking a dedicated, programmable mechanical numpad. The decision is difficult because both offer high-end features like triple-mode connectivity, QMK/VIA support, and hot-swap sockets at a similar price. The core trade-off is between the Weikav's standard-profile, gasket-mounted DIY kit and the Keychron's unique low-profile, pre-built design with a rotary encoder.

Model
	80	91	Select a keyboard to compare
Rating	0.0 stars (0 reviews)	4.0 stars (18 reviews)
Purchase Options
Main differences	Has Linear switch options Uses a Gasket Mount mounting style Equipped with a 800 mAh battery Weighs about 480 g Sized at 18 x 130 x 95 mm Made with a Aluminum case Offers Yes, Rgb RGB lighting	Has Silent, Linear, Tactile, Clicky switch options Features a low-profile design Comes with a knob Compatible with both Mac and Windows Connects via USB-C Includes screw-in stabilizers Has built-in sound dampening Uses a Plate Mount mounting style Equipped with a 750 mAh battery Made with a Aluminum, Plastic case Features POM, PBT keycaps Offers Yes, Rgb, North-face, Rgb North-face RGB lighting
Score	Scores Performance: 75.6 Build Quality: 84.1 Productivity: 56.9 Customizability: 90 Portability: 77.9	Scores Performance: 81.1 Build Quality: 85.8 Productivity: 95.8 Customizability: 94.2 Portability: 88.6
Name	Name Weikav Stars21 Programmable Numpad	Name Keychron K0 Max
Release year	Release year 2025	Release year 2025
Switch Options	Switch Options Linear	Switch Options Silent, Linear, Tactile, Clicky
Profile	Profile Normal Profile	Profile Low Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size Numpad	Layout Size Numpad
Layout Standard	Layout Standard ANSI	Layout Standard ANSI
Layout Ergonomics	Layout Ergonomics Normal	Layout Ergonomics Normal
Knob Support	Knob Support	Knob Support
Display Support	Display Support	Display Support
Mac/Win Support	Mac/Win Support	Mac/Win Support
Multi-Media Keys	Multi-Media Keys	Multi-Media Keys
USB-C	USB-C	USB-C
USB passthrough	USB passthrough	USB passthrough
Connection	Connection Bluetooth, 2.4 GHz, Wired, Wireless	Connection Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate	Polling Rate 1000 Hz	Polling Rate 1000 Hz
Battery capacity	Battery capacity 800 mAh	Battery capacity 750 mAh
Hall Effect Support	Hall Effect Support	Hall Effect Support
QMK Support	QMK Support	QMK Support
VIA Support	VIA Support	VIA Support
VIAL Support	VIAL Support	VIAL Support
N-Key Rollover	N-Key Rollover	N-Key Rollover
Rapid Trigger	Rapid Trigger	Rapid Trigger
Mount Style	Mount Style Gasket Mount	Mount Style Plate Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight Rgb	Backlight Rgb, North-face
Case Colors	Case Colors	Case Colors
Case Material	Case Material Aluminum	Case Material Aluminum, Plastic
Keycaps Material	Keycaps Material -	Keycaps Material POM, PBT
Dimensions	Dimensions 18 x 130 x 95 mm	Dimensions -
Weight	Weight 480g	Weight -

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Pros and Trade-offs

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.

Weikav Stars21 Programmable Numpad

+Gasket mount design for a flexible typing feel.
+Full CNC aluminum case construction.
+Sold as a DIY kit for hands-on assembly and customization.
+Standard switch profile compatible with a vast range of aftermarket parts.
+Includes an anodized gold weight according to the vendor.

−Requires assembly, switches, and keycaps (sold as a kit).
−Limited to linear switch type in the provided configuration.
−No dedicated macro keys or rotary encoder out of the box.

Keychron K0 Max

+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.
+Features sound-dampening IXPE and latex foam inside.
+Offers a choice of linear, tactile, or clicky low-profile switches.

−Limited to compatible Gateron or Keychron low-profile mechanical switches only.
−Some user reviews mention shorter-than-expected battery life.
−Case uses a combination of aluminum and plastic materials.

Which Keyboard Is Better for Your Needs?

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.

GamingTie

•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).

OfficeKeychron K0 Max

•The Keychron K0 Max is a pre-built unit, ready to use out of the box.
•Its low-profile design and included sound-dampening foams may be quieter.
•The manufacturer lists Mac/Win support and a web-based configurator for easy key remapping.

ProgrammingTie

•Both support QMK and VIA for deep, layer-based key programming.
•Both are hot-swappable for customizing switch feel.
•The K0 Max has a dedicated macro column, while the Stars21's keys can be fully remapped.

TravelKeychron K0 Max

•The Keychron K0 Max is described as 'ultra-slim' with low-profile switches.
•Its lower front height (implied by low-profile design) may fit better in bags.
•Both have similar wireless capabilities and battery sizes (750mAh vs 800mAh).

ModdingWeikav Stars21 Programmable Numpad

•The Weikav Stars21 is sold as a DIY kit, designed for assembly and modification.
•It features a gasket mount and an anodized aluminum case for a specific typing feel.
•Its standard profile allows for a wider universe of aftermarket keycaps and switches.

Content CreationKeychron K0 Max

•The Keychron K0 Max includes a rotary encoder knob, useful for scrubbing timelines or adjusting brush size.
•Its pre-lubed Keychron Milk POM switches and redesigned stabilizers are tuned for a consistent feel.
•The low-profile keycaps with LSA profile are designed for a premium typing experience.