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Compare Weikav Stars21 Programmable Numpad vs Yunzii YZ19 Differences Side by Side

This comparison is for users seeking a dedicated mechanical numpad to complement a compact keyboard or enhance productivity. The decision is challenging because both the Weikav Stars21 and Yunzii YZ19 offer tri-mode connectivity, gasket mounts, and hot-swap sockets at a similar price point. The key differences lie in build materials, firmware support, weight, and included accessories, making the choice dependent on whether you prioritize modding potential or out-of-box readiness.

80
[In Stock] Stars21 Programmable Mechanical Numpad
70
YUNZII YZ19 Gasket Wireless Mechanical Knob Numeric Keypad Num Pad

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  • Released in 2025
  • Has Linear switch options
  • Supports QMK firmware
  • Supports VIA configuration
  • Runs at a 1000 Hz polling rate
  • 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
  • Released in 2024
  • Has Tactile, Linear switch options
  • Comes with a knob
  • Compatible with both Mac and Windows
  • Equipped with a 1500 mAh battery
  • Weighs about 219.5 g
  • Sized at 41 x 136 x 92 mm
  • Features PBT keycaps
  • Offers Yes, Rgb, South-face, Rgb South-face RGB lighting
Scores
  • Performance: 75.7
  • Build Quality: 84.1
  • Productivity: 56.9
  • Customizability: 90
  • Portability: 78.1
Scores
  • Performance: 73.8
  • Build Quality: 66
  • Productivity: 62.6
  • Customizability: 74.8
  • Portability: 84.4
Name
Weikav Stars21 Programmable Numpad
Name
Yunzii YZ19
Release year
2025
Release year
2024
Switch Options
Linear
Switch Options
Tactile, Linear
Profile
Normal Profile
Profile
Normal Profile
Hot Swappable
 
Hot Swappable
 
Layout Size
Numpad
Layout Size
Numpad
Layout Standard
ANSI
Layout Standard
ANSI
Layout Ergonomics
Normal
Layout Ergonomics
Normal
Knob Support
 
Knob Support
 
Display Support
 
Display Support
 
Mac/Win Support
 
Mac/Win Support
 
Multi-Media Keys
 
Multi-Media Keys
 
USB-C
 
USB-C
 
USB passthrough
 
USB passthrough
 
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Connection
Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate
1000 Hz
Polling Rate
-
Battery capacity
800 mAh
Battery capacity
1500 mAh
Hall Effect Support
 
Hall Effect Support
 
QMK Support
 
QMK Support
 
VIA Support
 
VIA Support
 
VIAL Support
 
VIAL Support
 
N-Key Rollover
 
N-Key Rollover
 
Rapid Trigger
 
Rapid Trigger
 
Mount Style
Gasket Mount
Mount Style
Gasket Mount
Screw in Stabilizers
 
Screw in Stabilizers
 
Sound Dampening
 
Sound Dampening
 
Backlight
 
Rgb
Backlight
 
Rgb, South-face
Case Colors
Case Colors
Case Material
Aluminum
Case Material
-
Keycaps Material
-
Keycaps Material
PBT
Dimensions
18 x 130 x 95 mm
Dimensions
41 x 136 x 92 mm
Weight
480g
Weight
219.5g
*Something incorrect or missing? Please
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Pros and Trade-offs

Your primary need dictates the choice. If you value an uncompromising, mod-friendly foundation with extensive programmability via QMK/VIA, the heavier Weikav Stars21 is the superior tool. If you prefer a lightweight, ready-to-use numpad with better battery life and convenient features like a knob for daily productivity, the Yunzii YZ19 is the more practical option. Consider the additional cost of switches and keycaps if opting for the Stars21 as a barebones kit.

Weikav Stars21 Programmable Numpad

  • +CNC aluminum case with anodized or electrophoresis finish for a premium feel.
  • +Full support for QMK and VIA firmware for deep key remapping and macro programming.
  • +Specified 1000Hz polling rate in wired and 2.4GHz modes for responsive input.
  • +Includes an anodized gold weight, contributing to its solid construction.
  • +Available in multiple color options including Black, Silver, Red, Purple, and Milky White.
  • −Heavier at 480g, which reduces portability.
  • −Smaller 800mAh battery compared to the YZ19.
  • −Listed as a DIY kit/barebones, so it may not include switches or keycaps, requiring a separate purchase.
  • −No mention of an included control knob.

Yunzii YZ19

  • +Significantly lighter at 219.5g, enhancing portability.
  • +Larger 1500mAh battery for extended wireless use.
  • +Comes pre-built with PBT dye-sublimation keycaps and a choice of Gateron G Pro switches.
  • +Includes a programmable knob for volume or media control.
  • +Explicitly lists Mac/Win support and is ready to use out of the box.
  • −Case material is not specified, likely a lighter plastic versus the Stars21's aluminum.
  • −Lacks mention of QMK or VIA support, limiting firmware customization options.
  • −Polling rate is not specified in the provided information.
  • −Only two color options (Mint, Macaron) are listed.

Which Keyboard Is Better for Your Needs?

The Weikav Stars21 is the clear choice for programmers and modders due to its open-source firmware support and premium construction. For office workers and travelers, the Yunzii YZ19's lighter weight, larger battery, and included knob provide more practical advantages. Gamers may lean towards the Stars21 for its confirmed high polling rate, while content creators have valid reasons to consider either model.

GamingWeikav Stars21 Programmable Numpad
  • •The Weikav Stars21 has a specified 1000Hz polling rate in wired/2.4GHz modes, which the Yunzii YZ19's listing does not mention.
  • •Its aluminum case may provide a more stable, vibration-dampening platform for rapid key presses.
  • •Both offer N-key rollover, ensuring all simultaneous key presses are registered.
OfficeYunzii YZ19
  • •The Yunzii YZ19 is significantly lighter at 219.5g, making it easier to move around a desk or pack in a bag.
  • •It includes a knob for quick volume or media control, a convenient office feature not mentioned for the Stars21.
  • •Its listing explicitly mentions Mac/Win support and includes pre-installed PBT keycaps, offering a ready-to-use experience.
ProgrammingWeikav Stars21 Programmable Numpad
  • •The Weikav Stars21 supports QMK and VIA firmware, allowing for deep, layer-based key remapping essential for coding shortcuts.
  • •Its vendor description highlights programmability as a core feature.
  • •The aluminum build may offer a more solid, consistent typing feel for long sessions.
TravelYunzii YZ19
  • •The Yunzii YZ19 weighs less than half as much as the Stars21 (219.5g vs 480g).
  • •It has a larger 1500mAh battery, which its manufacturer states should offer longer wireless use between charges.
  • •Its lighter weight and smaller physical footprint make it more packable.
ModdingWeikav Stars21 Programmable Numpad
  • •The Weikav Stars21 explicitly supports QMK and VIA, offering extensive firmware customization.
  • •Its CNC aluminum case and anodized gold weight, as per the vendor, provide a high-end foundation for modifications.
  • •It is listed as a DIY kit/barebones option, suggesting it's designed for user assembly and customization.
Content CreationTie
  • •Both numpads offer RGB backlighting for visual customization in a setup.
  • •The Yunzii YZ19's included knob can be useful for timeline scrubbing or brush size adjustment if programmable.
  • •The Weikav Stars21's programmable keys via QMK/VIA allow for creating complex macro sequences for editing software.

Frequently Asked Questions (FAQ)

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