Compare Keychron J2 vs K3 Max Differences Side by Side

Explore the comprehensive side-by-side comparison of the Keychron J2 and Keychron K3 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
	77	93	Select a keyboard to compare
Rating	4.3 stars (20 reviews)	4.5 stars (17 reviews)
Purchase Options
Main differences	Released in 2025 Built with the ANSI layout standard Equipped with a 3750 mAh battery Features PBT keycaps Offers Yes, Rgb, White RGB lighting	Released in 2023 Features a low-profile design Built with the ISO, ISO-UK, ISO-DE, ISO-Nordic, ISO-SW, ANSI layout standard Compatible with both Mac and Windows Connects via USB-C Features N-key rollover Includes screw-in stabilizers Uses a Plate Mount mounting style Equipped with a 1550 mAh battery Weighs about 580 g Sized at 22 x 306 x 116 mm Made with a ABS, Aluminum, Wood, Plastic case Features PBT, ABS keycaps Offers Yes, Rgb, White, North-face, Rgb North-face, White North-face RGB lighting
Score	Scores Performance: 70.1 Build Quality: 71.4 Productivity: 73.7 Customizability: 85.7 Portability: 73.2	Scores Performance: 80.9 Build Quality: 86.4 Productivity: 94.3 Customizability: 91 Portability: 77.1
Name	Name Keychron J2	Name Keychron K3 Max
Release year	Release year 2025	Release year 2023
Switch Options	Switch Options Linear, Tactile, Clicky	Switch Options Linear, Tactile, Clicky
Profile	Profile Normal Profile	Profile Low Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 75%	Layout Size 75%
Layout Standard	Layout Standard ANSI	Layout Standard ISO, ISO-UK, ISO-DE, ISO-Nordic, ISO-SW, 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 3750 mAh	Battery capacity 1550 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 Plate Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight Rgb, White	Backlight Rgb, White, North-face
Case Colors	Case Colors	Case Colors
Case Material	Case Material -	Case Material ABS, Aluminum, Wood, Plastic
Keycaps Material	Keycaps Material PBT	Keycaps Material PBT, ABS
Dimensions	Dimensions -	Dimensions 22 x 306 x 116 mm
Weight	Weight -	Weight 580g