Sirius Ursa Major V2 vs Keychron K2 HE Specs

Compare Sirius Ursa Major V2 vs Keychron K2 HE Differences Side by Side

Explore the comprehensive side-by-side comparison of the Sirius Ursa Major V2 and Keychron K2 HE 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
Rating	0.0 stars (0 reviews)	4.6 stars (69 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 2024 Has Linear, Magnetic switch options Available in a 75% layout Built with the ANSI, ISO, ISO-UK, ISO-DE, ISO-ES, ISO-FR, ISO-CH, ISO-Nordic, JIS layout standard Offers Normal ergonomics Provides dedicated media keys Utilizes Hall effect sensors Enables rapid trigger functionality Uses a Tray Mount mounting style Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity Equipped with a 4000 mAh battery Weighs about 1743 g Sized at 30 x 127 x 41 mm Made with a Aluminum, Wood, ABS, Resin case Features PBT, ABS, PC keycaps Offers Yes, Rgb, North-face, Rgb North-face, White, White North-face RGB lighting
Score	Scores Performance: 67.3 Build Quality: 81.9 Productivity: 97.3 Customizability: 92.1 Portability: 90.2	Scores Performance: 93.3 Build Quality: 90.8 Productivity: 96.9 Customizability: 99.6 Portability: 81.3
Name	Name Sirius Ursa Major V2	Name Keychron K2 HE
Release year	Release year 2025	Release year 2024
Switch Options	Switch Options -	Switch Options Linear, Magnetic
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 ANSI, ISO, ISO-UK, ISO-DE, ISO-ES, ISO-FR, ISO-CH, ISO-Nordic, JIS
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 Tray Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight	Backlight Rgb, North-face, White
Case Colors	Case Colors	Case Colors
Case Material	Case Material Aluminum	Case Material Aluminum, Wood, ABS, Resin
Keycaps Material	Keycaps Material -	Keycaps Material PBT, ABS, PC
Dimensions	Dimensions 14 x 36 x 4 mm	Dimensions 30 x 127 x 41 mm
Weight	Weight 1400g	Weight 1743g

[In Stock] Ursa Major V2 Wireless Aluminum Ultimate Keyboard

Keychron K2 HE Wireless Magnetic Switch Custom Keyboard

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0.0 stars (0 reviews)

4.6 stars (69 reviews)

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 2024
Has Linear, Magnetic switch options
Available in a 75% layout
Built with the ANSI, ISO, ISO-UK, ISO-DE, ISO-ES, ISO-FR, ISO-CH, ISO-Nordic, JIS layout standard
Offers Normal ergonomics
Provides dedicated media keys
Utilizes Hall effect sensors
Enables rapid trigger functionality
Uses a Tray Mount mounting style
Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity
Equipped with a 4000 mAh battery
Weighs about 1743 g
Sized at 30 x 127 x 41 mm
Made with a Aluminum, Wood, ABS, Resin case
Features PBT, ABS, PC keycaps
Offers Yes, Rgb, North-face, Rgb North-face, White, White North-face RGB lighting

Scores

Performance: 67.3
Build Quality: 81.9
Productivity: 97.3
Customizability: 92.1
Portability: 90.2

Scores

Performance: 93.3
Build Quality: 90.8
Productivity: 96.9
Customizability: 99.6
Portability: 81.3

Name

Sirius Ursa Major V2

Name

Keychron K2 HE

Release year

2025

Release year

2024

Switch Options

Linear, Magnetic

Profile

Normal Profile

Profile

Normal Profile

Hot Swappable

Layout Size

Other

Layout Size

75%

Layout Standard

ANSI

Layout Standard

ANSI, ISO, ISO-UK, ISO-DE, ISO-ES, ISO-FR, ISO-CH, ISO-Nordic, JIS

Layout Ergonomics

Split

Layout Ergonomics

Normal

Knob Support

Display Support

Mac/Win Support

Multi-Media Keys

USB-C

USB passthrough

Connection

Bluetooth, Wired, Wireless

Connection

Bluetooth, 2.4 GHz, Wired, Wireless

Polling Rate

1000 Hz

Polling Rate

1000 Hz

Battery capacity

2400 mAh

Battery capacity

4000 mAh

Hall Effect Support

QMK Support

VIA Support

VIAL Support

N-Key Rollover

Rapid Trigger

Mount Style

Tray Mount

Screw in Stabilizers

Sound Dampening

Backlight

Rgb, North-face, White

Case Colors

Case Material

Aluminum

Case Material

Aluminum, Wood, ABS, Resin

Keycaps Material

PBT, ABS, PC

Dimensions

14 x 36 x 4 mm

Dimensions

30 x 127 x 41 mm

Weight

1400g

Weight

1743g

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