Compare Keychron B31 vs B35 Differences Side by Side

This comparison is for buyers deciding between two very similar Keychron wireless keyboards that differ primarily in layout. The B31 uses a 75% form factor, while the B35 uses a 96% layout. Both share core features like scissor switches, tri-mode connectivity, and the Keychron Launcher for customization, making the choice a matter of space versus key availability. This guide breaks down the trade-offs for different work and play scenarios.

Model
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Rating	0.0 stars (0 reviews)	0.0 stars (0 reviews)
Purchase Options
Main differences	Released in 2026 Available in a 75% layout Weighs about 520 g Sized at 26 x 138 x 327 mm	Released in 2025 Available in a 96% layout Weighs about 510 g Sized at 26 x 136 x 381 mm
Score	Scores Performance: 57.1 Build Quality: 41.9 Productivity: 66.7 Customizability: 45.5 Portability: 78.1	Scores Performance: 55.2 Build Quality: 42.7 Productivity: 59.3 Customizability: 44.9 Portability: 49.2
Name	Name Keychron B31	Name Keychron B35
Release year	Release year 2026	Release year 2025
Switch Options	Switch Options Linear, Tactile, Clicky	Switch Options Linear, Tactile, Clicky
Profile	Profile Normal Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 75%	Layout Size 96%
Layout Standard	Layout Standard ANSI	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 ABS, Plastic	Case Material ABS, Plastic
Keycaps Material	Keycaps Material ABS	Keycaps Material ABS
Dimensions	Dimensions 26 x 138 x 327 mm	Dimensions 26 x 136 x 381 mm
Weight	Weight 520g	Weight 510g

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Pros and Trade-offs

Your need for a number pad is the deciding factor. Choose the Keychron B35 if your daily workflow involves significant data entry, financial work, or you simply prefer a condensed full-size layout. Opt for the Keychron B31 if you prioritize a minimalist desk setup, need more room for your mouse, or plan to frequently carry your keyboard. Both offer identical wireless performance, battery life, and typing feel.

Keychron B31

+More compact 75% layout (327mm length) saves desk space and is easier to transport.
+Provides dedicated arrow keys and function row in a condensed form factor.
+Features the same tri-mode connectivity (Bluetooth 5.2, 2.4GHz, wired) as the B35.
+Includes adjustable typing angles (5°, 6.5°, 9°) for ergonomic support.

−Lacks a dedicated number pad, which is essential for frequent numeric input.
−The vendor product page states the ABS keycaps are not replaceable.
−Does not support N-Key Rollover (NKRO), according to its specifications.

Keychron B35

+96% layout includes a full number pad and arrow keys in a space-efficient design.
+Ideal for data entry, accounting, or any task requiring frequent number input.
+Shares the same silent, pre-lubed scissor switch mechanism and long battery life as the B31.
+Programmable via the Keychron Launcher web app across Windows, macOS, and Linux.

−Larger footprint (381mm length) requires more desk space than the B31.
−The vendor product page states the ABS keycaps are not replaceable.
−Does not support N-Key Rollover (NKRO), according to its specifications.

Which Keyboard Is Better for Your Needs?

The layout difference dictates the winner for most use cases. The B35's 96% layout with a number pad wins for office work and content creation. The B31's compact 75% form is better for gaming and travel where space is at a premium. For programming and modding, the keyboards are evenly matched, as they share the same core typing experience and customization limitations.

GamingKeychron B31

•The 75% layout of the B31 provides more mouse space on a desk.
•Both share the same 1000 Hz polling rate over 2.4 GHz and wired connections.
•The B31's smaller, 327mm length is easier to reposition or transport to events.

OfficeKeychron B35

•The B35's 96% layout includes a dedicated number pad, crucial for data entry.
•Both offer silent, pre-lubed scissor switches suitable for shared workspaces.
•Both support multi-device connectivity via Bluetooth 5.2 and 2.4 GHz for switching between computers.

ProgrammingTie

•The B31's 75% layout has dedicated arrow keys, which some programmers prefer in a compact form.
•The B35's 96% layout includes a number pad, which can be useful for inputting numeric values.
•Both keyboards are programmable via the Keychron Launcher web app for macros and key remapping.

TravelKeychron B31

•The B31 is significantly shorter (327mm vs 381mm), fitting more easily into bags.
•Both share the same 800mAh battery and estimated 320-hour wireless battery life.
•Both have a magnetic storage slot for the 2.4 GHz receiver.

ModdingTie

•Neither keyboard is hot-swappable, according to their specifications.
•The vendor page for the B31 explicitly states its ABS keycaps are not replaceable.
•Both use the same web-based Keychron Launcher for software-based key remapping and macro programming.

Content CreationKeychron B35

•The B35's number pad can speed up timeline scrubbing and numerical adjustments in editing software.
•Both keyboards feature multimedia shortcut keys for controlling volume and playback.
•The B35's larger layout may provide a more familiar, full-size typing experience for long writing sessions.