Keychron J4 QMK vs K1 Max Specs

Compare Keychron J4 QMK vs K1 Max Differences Side by Side

Explore the comprehensive side-by-side comparison of the Keychron J4 QMK and Keychron K1 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
Rating	0.0 stars (0 reviews)	4.3 stars (16 reviews)
Purchase Options
Main differences	Released in 2025 Has Tactile, Linear switch options Built with the ANSI layout standard Weighs about 870 g Sized at 38 x 366 x 138 mm Made with a ABS case Features PBT keycaps Offers Yes, Rgb, White, North-face, Rgb North-face, White North-face RGB lighting	Released in 2024 Has Tactile, Linear, Clicky switch options Features a low-profile design Built with the ISO-DE, ISO-Nordic, ISO-UK, ISO, ANSI layout standard Provides dedicated media keys Supports VIA configuration Uses a PCB Mount mounting style Weighs about 608 g Sized at 24 x 346 x 119 mm Made with a ABS, Aluminum, Plastic case Features PBT, ABS keycaps Offers Yes, Rgb, White, North-face, White North-face, Rgb North-face RGB lighting
Score	Scores Performance: 79.3 Build Quality: 61.1 Productivity: 84.4 Customizability: 74.7 Portability: 73.6	Scores Performance: 82.2 Build Quality: 81.8 Productivity: 89.3 Customizability: 89.8 Portability: 73.2
Name	Name Keychron J4 QMK	Name Keychron K1 Max
Release year	Release year 2025	Release year 2024
Switch Options	Switch Options Tactile, Linear	Switch Options Tactile, Linear, Clicky
Profile	Profile Normal Profile	Profile Low Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 80%	Layout Size 80%
Layout Standard	Layout Standard ANSI	Layout Standard ISO-DE, ISO-Nordic, ISO-UK, 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 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 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 -	Mount Style PCB Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight Rgb, White, North-face	Backlight Rgb, White, North-face
Case Colors	Case Colors	Case Colors
Case Material	Case Material ABS	Case Material ABS, Aluminum, Plastic
Keycaps Material	Keycaps Material PBT	Keycaps Material PBT, ABS
Dimensions	Dimensions 38 x 366 x 138 mm	Dimensions 24 x 346 x 119 mm
Weight	Weight 870g	Weight 608g

Keychron J4 QMK Wireless Mechanical Keyboard (US ANSI Layout)

-23% off

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0.0 stars (0 reviews)

4.3 stars (16 reviews)

Released in 2025
Has Tactile, Linear switch options
Built with the ANSI layout standard
Weighs about 870 g
Sized at 38 x 366 x 138 mm
Made with a ABS case
Features PBT keycaps
Offers Yes, Rgb, White, North-face, Rgb North-face, White North-face RGB lighting

Released in 2024
Has Tactile, Linear, Clicky switch options
Features a low-profile design
Built with the ISO-DE, ISO-Nordic, ISO-UK, ISO, ANSI layout standard
Provides dedicated media keys
Supports VIA configuration
Uses a PCB Mount mounting style
Weighs about 608 g
Sized at 24 x 346 x 119 mm
Made with a ABS, Aluminum, Plastic case
Features PBT, ABS keycaps
Offers Yes, Rgb, White, North-face, White North-face, Rgb North-face RGB lighting

Scores

Performance: 79.3
Build Quality: 61.1
Productivity: 84.4
Customizability: 74.7
Portability: 73.6

Scores

Performance: 82.2
Build Quality: 81.8
Productivity: 89.3
Customizability: 89.8
Portability: 73.2

Name

Keychron J4 QMK

Name

Keychron K1 Max

Release year

2025

Release year

2024

Switch Options

Tactile, Linear

Switch Options

Tactile, Linear, Clicky

Profile

Normal Profile

Profile

Low Profile

Hot Swappable

Layout Size

80%

Layout Size

80%

Layout Standard

ANSI

Layout Standard

ISO-DE, ISO-Nordic, ISO-UK, ISO, ANSI

Layout Ergonomics

Normal

Layout Ergonomics

Normal

Knob Support

Display Support

Mac/Win Support

Multi-Media Keys

USB-C

USB passthrough

Connection

Bluetooth, 2.4 GHz, Wired, Wireless

Connection

Bluetooth, 2.4 GHz, Wired, Wireless

Polling Rate

1000 Hz

Polling Rate

1000 Hz

Battery capacity

4000 mAh

Battery capacity

4000 mAh

Hall Effect Support

QMK Support

VIA Support

VIAL Support

N-Key Rollover

Rapid Trigger

Mount Style

PCB Mount

Screw in Stabilizers

Sound Dampening

Backlight

Rgb, White, North-face

Backlight

Rgb, White, North-face

Case Colors

Case Material

ABS

Case Material

ABS, Aluminum, Plastic

Keycaps Material

PBT

Keycaps Material

PBT, ABS

Dimensions

38 x 366 x 138 mm

Dimensions

24 x 346 x 119 mm

Weight

870g

Weight

608g

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Model
	72	-23% off 87	Select a keyboard to compare
Rating	0.0 stars (0 reviews)	4.3 stars (16 reviews)
Purchase Options
Main differences	Released in 2025 Has Tactile, Linear switch options Built with the ANSI layout standard Weighs about 870 g Sized at 38 x 366 x 138 mm Made with a ABS case Features PBT keycaps Offers Yes, Rgb, White, North-face, Rgb North-face, White North-face RGB lighting	Released in 2024 Has Tactile, Linear, Clicky switch options Features a low-profile design Built with the ISO-DE, ISO-Nordic, ISO-UK, ISO, ANSI layout standard Provides dedicated media keys Supports VIA configuration Uses a PCB Mount mounting style Weighs about 608 g Sized at 24 x 346 x 119 mm Made with a ABS, Aluminum, Plastic case Features PBT, ABS keycaps Offers Yes, Rgb, White, North-face, White North-face, Rgb North-face RGB lighting
Score	Scores Performance: 79.3 Build Quality: 61.1 Productivity: 84.4 Customizability: 74.7 Portability: 73.6	Scores Performance: 82.2 Build Quality: 81.8 Productivity: 89.3 Customizability: 89.8 Portability: 73.2
Name	Name Keychron J4 QMK	Name Keychron K1 Max
Release year	Release year 2025	Release year 2024
Switch Options	Switch Options Tactile, Linear	Switch Options Tactile, Linear, Clicky
Profile	Profile Normal Profile	Profile Low Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 80%	Layout Size 80%
Layout Standard	Layout Standard ANSI	Layout Standard ISO-DE, ISO-Nordic, ISO-UK, 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 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 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 -	Mount Style PCB Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight Rgb, White, North-face	Backlight Rgb, White, North-face
Case Colors	Case Colors	Case Colors
Case Material	Case Material ABS	Case Material ABS, Aluminum, Plastic
Keycaps Material	Keycaps Material PBT	Keycaps Material PBT, ABS
Dimensions	Dimensions 38 x 366 x 138 mm	Dimensions 24 x 346 x 119 mm
Weight	Weight 870g	Weight 608g