Compare Epomaker TH80 V2 Pro vs Keychron J4 QMK Differences Side by Side

Explore the comprehensive side-by-side comparison of the Epomaker TH80 V2 Pro 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.

Model
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Rating	4.9 stars (27 reviews)	0.0 stars (0 reviews)
Purchase Options
Main differences	Released in 2026 Has Linear, Silent switch options Comes with a knob Includes a Yes, LCD display Uses a Gasket Mount mounting style Equipped with a 10000 mAh battery Weighs about 950 g Sized at 47 x 323 x 141 mm Offers Yes, Rgb, South-face, Rgb South-face RGB lighting	Released in 2025 Includes a No display Supports QMK firmware Features N-key rollover Equipped with a 4000 mAh battery Weighs about 870 g Sized at 38 x 366 x 138 mm Offers Yes, Rgb, White, North-face, Rgb North-face, White North-face RGB lighting
Score	Scores Performance: 65.8 Build Quality: 68.8 Productivity: 82.7 Customizability: 73.2 Portability: 85.4	Scores Performance: 78.3 Build Quality: 60.3 Productivity: 83.5 Customizability: 74 Portability: 73.2
Name	Name Epomaker TH80 V2 Pro	Name Keychron J4 QMK
Release year	Release year 2026	Release year 2025
Switch Options	Switch Options Linear, Silent	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 LCD	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 10000 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 -
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight Rgb, South-face	Backlight Rgb, White, North-face
Case Colors	Case Colors	Case Colors
Case Material	Case Material ABS	Case Material ABS
Keycaps Material	Keycaps Material PBT	Keycaps Material PBT
Dimensions	Dimensions 47 x 323 x 141 mm	Dimensions 38 x 366 x 138 mm
Weight	Weight 950g	Weight 870g