Compare Keychron B1 Pro vs B4 Pro Differences Side by Side

Explore the comprehensive side-by-side comparison of the Keychron B1 Pro and Keychron B4 Pro 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.

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Rating	4.2 stars (15 reviews)	0.0 stars (0 reviews)
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Main differences	Released in 2024 Available in a 75% layout Built with the ANSI, ISO, JIS layout standard Provides dedicated media keys Weighs about 425 g Sized at 5 x 296 x 130 mm Made with a Plastic, ABS case	Released in 2025 Available in a 96% layout Built with the ANSI layout standard Weighs about 495 g Sized at -1 x -1 x -1 mm Made with a ABS case
Score	Scores Performance: 48.1 Build Quality: 41.6 Productivity: 66.1 Customizability: 45 Portability: 77.9	Scores Performance: 49.1 Build Quality: 43.2 Productivity: 67.7 Customizability: 42.2 Portability: 51.6
Name	Name Keychron B1 Pro	Name Keychron B4 Pro
Release year	Release year 2024	Release year 2025
Switch Options	Switch Options Linear, Tactile, Clicky	Switch Options Linear, Tactile, Clicky
Profile	Profile Low Profile	Profile Low Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 75%	Layout Size 96%
Layout Standard	Layout Standard ANSI, ISO, JIS	Layout Standard ANSI
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 1000 Hz
Battery capacity	Battery capacity 800 mAh	Battery capacity 800 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 -
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight	Backlight
Case Colors	Case Colors	Case Colors
Case Material	Case Material Plastic, ABS	Case Material ABS
Keycaps Material	Keycaps Material ABS	Keycaps Material ABS
Dimensions	Dimensions 5 x 296 x 130 mm	Dimensions -1 x -1 x -1 mm
Weight	Weight 425g	Weight 495g