Compare Jamesdonkey RS2 V3 vs Keychron K4 Max Differences Side by Side

Explore the comprehensive side-by-side comparison of the Jamesdonkey RS2 V3 and Keychron K4 Max 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
	69	87	Select a keyboard to compare
Rating	0.0 stars (0 reviews)	5.0 stars (1 reviews)
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Main differences	Released in 2023 Has Clicky switch options Available in a 95% layout Built with the ANSI layout standard Comes with a knob Includes a Yes display Uses a Gasket Mount mounting style Supports Wireless connectivity Weighs about 1134 g Made with a ABS, Plastic case Offers Yes, Rgb RGB lighting	Released in 2025 Has Linear, Tactile, Clicky switch options Available in a 96% layout Built with the ISO, ANSI layout standard Includes a No display Supports QMK firmware Supports VIA configuration Features N-key rollover Includes screw-in stabilizers Uses a PCB Mount mounting style Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity Runs at a 1000 Hz polling rate Weighs about 1290 g Sized at 31 x 391 x 140 mm Made with a ABS case Offers Yes, Rgb, South-face, Rgb South-face, White, White South-face RGB lighting
Score	Scores Performance: 47.2 Build Quality: 62.1 Productivity: 68.3 Customizability: 85.6 Portability: 51.2	Scores Performance: 82.1 Build Quality: 80.5 Productivity: 89.4 Customizability: 92.9 Portability: 50.8
Name	Name Jamesdonkey RS2 V3	Name Keychron K4 Max
Release year	Release year 2023	Release year 2025
Switch Options	Switch Options Clicky	Switch Options Linear, Tactile, Clicky
Profile	Profile Normal Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 95%	Layout Size 96%
Layout Standard	Layout Standard ANSI	Layout Standard ISO, 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 Wireless	Connection Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate	Polling Rate -	Polling Rate 1000 Hz
Battery capacity	Battery capacity 4000 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 Gasket Mount	Mount Style PCB Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight Rgb	Backlight Rgb, South-face, White, White South-face
Case Colors	Case Colors	Case Colors
Case Material	Case Material ABS, Plastic	Case Material ABS
Keycaps Material	Keycaps Material PBT	Keycaps Material PBT
Dimensions	Dimensions -	Dimensions 31 x 391 x 140 mm
Weight	Weight 1134g	Weight 1290g