Compare Sirius Ursa Major V2 vs Keychron V1 Max Differences Side by Side

Explore the comprehensive side-by-side comparison of the Sirius Ursa Major V2 and Keychron V1 Max 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
	87	98	Select a keyboard to compare
Rating	0.0 stars (0 reviews)	4.1 stars (18 reviews)
Purchase Options
Main differences	Released in 2025 Available in a Other layout Built with the ANSI layout standard Offers Split ergonomics Supports Bluetooth, Wired, Wireless connectivity Equipped with a 2400 mAh battery Weighs about 1400 g Sized at 14 x 36 x 4 mm Made with a Aluminum case Offers No RGB lighting	Released in 2023 Has Linear, Tactile, Clicky switch options Available in a 75% layout Built with the ISO-DE, ISO-UK, ISO-Nordic, ISO-SW, ISO-ES, ISO-FR, ISO-IT, ISO-PT, ISO, ANSI layout standard Offers Normal ergonomics Provides dedicated media keys Uses a Gasket Mount mounting style Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity Equipped with a 4000 mAh battery Weighs about 770 g Sized at 22 x 149 x 329 mm Made with a ABS, Plastic case Features PBT, ABS keycaps Offers Yes, Rgb, South-face, Rgb South-face RGB lighting
Score	Scores Performance: 67.4 Build Quality: 81.9 Productivity: 97.7 Customizability: 90.9 Portability: 89.9	Scores Performance: 83.2 Build Quality: 86.3 Productivity: 97.3 Customizability: 97.9 Portability: 78.6
Name	Name Sirius Ursa Major V2	Name Keychron V1 Max
Release year	Release year 2025	Release year 2023
Switch Options	Switch Options -	Switch Options Linear, Tactile, Clicky
Profile	Profile Normal Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size Other	Layout Size 75%
Layout Standard	Layout Standard ANSI	Layout Standard ISO-DE, ISO-UK, ISO-Nordic, ISO-SW, ISO-ES, ISO-FR, ISO-IT, ISO-PT, ISO, ANSI
Layout Ergonomics	Layout Ergonomics Split	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, Wired, Wireless	Connection Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate	Polling Rate 1000 Hz	Polling Rate 1000 Hz
Battery capacity	Battery capacity 2400 mAh	Battery capacity 4000 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 -	Mount Style Gasket Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight	Backlight Rgb, South-face
Case Colors	Case Colors	Case Colors
Case Material	Case Material Aluminum	Case Material ABS, Plastic
Keycaps Material	Keycaps Material -	Keycaps Material PBT, ABS
Dimensions	Dimensions 14 x 36 x 4 mm	Dimensions 22 x 149 x 329 mm
Weight	Weight 1400g	Weight 770g