Compare Keychron B31 vs Ktechs Rainy75 Parts Differences Side by Side

Explore the comprehensive side-by-side comparison of the Keychron B31 and Ktechs Rainy75 Parts 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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Main differences	Released in 2026 Has Linear, Tactile, Clicky switch options Built with the ANSI layout standard Includes a No display Compatible with both Mac and Windows Provides dedicated media keys Connects via USB-C Features N-key rollover Uses a PCB Mount mounting style Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity Equipped with a 800 mAh battery Weighs about 520 g Sized at 26 x 138 x 327 mm Made with a ABS, Plastic case Features ABS keycaps	Released in 2024 Includes a Yes, LED display Uses a Gasket Mount mounting style Supports Wireless connectivity Equipped with a 3500 mAh battery
Score	Scores Performance: 58.9 Build Quality: 52 Productivity: 69.3 Customizability: 46.6 Portability: 78.9	Scores Performance: 47.2 Build Quality: 65.3 Productivity: 45.8 Customizability: 42.4 Portability: 74.6
Name	Name Keychron B31	Name Ktechs Rainy75 Parts
Release year	Release year 2026	Release year 2024
Switch Options	Switch Options Linear, Tactile, Clicky	Switch Options -
Profile	Profile Normal Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 75%	Layout Size 75%
Layout Standard	Layout Standard ANSI	Layout Standard -
Layout Ergonomics	Layout Ergonomics Normal	Layout Ergonomics Normal
Knob Support	Knob Support	Knob Support
Display Support	Display Support	Display Support LED
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 Wireless
Polling Rate	Polling Rate 1000 Hz	Polling Rate 1000 Hz
Battery capacity	Battery capacity 800 mAh	Battery capacity 3500 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 PCB Mount	Mount Style Gasket Mount
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 -
Keycaps Material	Keycaps Material ABS	Keycaps Material -
Dimensions	Dimensions 26 x 138 x 327 mm	Dimensions -
Weight	Weight 520g	Weight -