Compare KBParadise V80 Tomcat vs Keychron J4 QMK Differences Side by Side

Explore the comprehensive side-by-side comparison of the KBParadise V80 Tomcat and Keychron J4 QMK 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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Rating	0.0 stars (0 reviews)	0.0 stars (0 reviews)
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Main differences	Released in 2024 Has Clicky switch options Provides dedicated media keys Uses a Plate Mount mounting style Supports Wired, Wired only connectivity Features ABS keycaps Offers No RGB lighting	Released in 2025 Supports hot-swappable switches Connects via USB-C Supports QMK firmware Has built-in sound dampening Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity Runs at a 1000 Hz polling rate Equipped with a 4000 mAh battery Weighs about 870 g Sized at 38 x 366 x 138 mm Features PBT keycaps Offers Yes, Rgb, White, North-face, Rgb North-face, White North-face RGB lighting
Score	Scores Performance: 57.1 Build Quality: 45.9 Productivity: 52.4 Customizability: 46.7 Portability: 52.6	Scores Performance: 79.2 Build Quality: 60.8 Productivity: 84.5 Customizability: 74.6 Portability: 73.5
Name	Name KBParadise V80 Tomcat	Name Keychron J4 QMK
Release year	Release year 2024	Release year 2025
Switch Options	Switch Options Clicky	Switch Options -
Profile	Profile Normal Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 80%	Layout Size 80%
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 Wired, Wired only	Connection Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate	Polling Rate -	Polling Rate 1000 Hz
Battery capacity	Battery capacity -	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 Plate Mount	Mount Style -
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight	Backlight Rgb, White, North-face
Case Colors	Case Colors	Case Colors
Case Material	Case Material ABS	Case Material ABS
Keycaps Material	Keycaps Material ABS	Keycaps Material PBT
Dimensions	Dimensions -	Dimensions 38 x 366 x 138 mm
Weight	Weight -	Weight 870g