Compare Keychron K0 Max vs Yunzii AL21 Differences Side by Side

Explore the comprehensive side-by-side comparison of the Keychron K0 Max and Yunzii AL21 and view their biggest differences. The detailed comparison table allows you to see all the essential features, specifications, and benefits of each keyboard at a glance. Whether you're looking for performance, value, or specific functionalities, this comparison tool helps you make an informed decision.

Model
	89	79	Select a keyboard to compare
Rating	4.1 stars (10 reviews)	0.0 stars (0 reviews)
Purchase Options
Main differences	Released in 2025 Has Silent, Linear, Tactile, Clicky switch options Features a low-profile design Built with the ANSI layout standard Supports QMK firmware Supports VIA configuration Includes screw-in stabilizers Uses a Plate Mount mounting style Runs at a 1000 Hz polling rate 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	Released in 2026 Has Linear switch options Uses a Gasket Mount mounting style Equipped with a 1500 mAh battery Weighs about 458 g Sized at 44 x 136 x 91 mm Made with a Aluminum case Features PBT keycaps Offers Yes, Rgb, South-face, Rgb South-face RGB lighting
Score	Scores Performance: 79.1 Build Quality: 84.8 Productivity: 95.2 Customizability: 92.9 Portability: 86.6	Scores Performance: 75.1 Build Quality: 77.7 Productivity: 84.2 Customizability: 75.8 Portability: 88.7
Name	Name Keychron K0 Max	Name Yunzii AL21
Release year	Release year 2025	Release year 2026
Switch Options	Switch Options Silent, Linear, Tactile, Clicky	Switch Options Linear
Profile	Profile Low Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size Numpad	Layout Size Numpad
Layout Standard	Layout Standard ANSI	Layout Standard -
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 -
Battery capacity	Battery capacity 750 mAh	Battery capacity 1500 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 Plate Mount	Mount Style Gasket Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight Rgb, North-face	Backlight Rgb, South-face
Case Colors	Case Colors	Case Colors
Case Material	Case Material Aluminum, Plastic	Case Material Aluminum
Keycaps Material	Keycaps Material POM, PBT	Keycaps Material PBT
Dimensions	Dimensions -	Dimensions 44 x 136 x 91 mm
Weight	Weight -	Weight 458g