Compare Keychron B39 vs Q12 HE Differences Side by Side

Explore the comprehensive side-by-side comparison of the Keychron B39 and Keychron Q12 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
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Rating	0.0 stars (0 reviews)	4.0 stars (2 reviews)
Purchase Options
Main differences	Released in 2026 Has Linear, Tactile, Clicky switch options Features a low-profile design Offers Alice ergonomics Equipped with a 800 mAh battery Weighs about 680 g Made with a Plastic, ABS case Features ABS keycaps Offers No RGB lighting	Released in 2025 Has Linear, Tactile, Clicky, Magnetic switch options Supports hot-swappable switches Offers Southpaw ergonomics Provides dedicated media keys Utilizes Hall effect sensors Supports QMK firmware Supports VIA configuration Features N-key rollover Enables rapid trigger functionality Includes screw-in stabilizers Has built-in sound dampening Uses a Gasket Mount mounting style Equipped with a 4000 mAh battery Weighs about 2201 g Sized at 31 x 409 x 145 mm Made with a Aluminum case Features PBT keycaps Offers Yes, Rgb, South-face, Rgb South-face RGB lighting
Score	Scores Performance: 48.5 Build Quality: 44 Productivity: 73.9 Customizability: 44.7 Portability: 49.2	Scores Performance: 92.9 Build Quality: 84.9 Productivity: 97.3 Customizability: 94.2 Portability: 55.3
Name	Name Keychron B39	Name Keychron Q12 HE
Release year	Release year 2026	Release year 2025
Switch Options	Switch Options Linear, Tactile, Clicky	Switch Options Linear, Tactile, Clicky, Magnetic
Profile	Profile Low Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 96%	Layout Size 96%
Layout Standard	Layout Standard ANSI	Layout Standard ANSI
Layout Ergonomics	Layout Ergonomics Alice	Layout Ergonomics Southpaw
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 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 Plastic, ABS	Case Material Aluminum
Keycaps Material	Keycaps Material ABS	Keycaps Material PBT
Dimensions	Dimensions -	Dimensions 31 x 409 x 145 mm
Weight	Weight 680g	Weight 2201g