Compare Keychron K4 Ultra vs K8 HE Differences Side by Side

Explore the comprehensive side-by-side comparison of the Keychron K4 Ultra and Keychron K8 HE 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
	75	89	Select a keyboard to compare
Rating	5.0 stars (1 reviews)	5.0 stars (5 reviews)
Purchase Options
Main differences	Released in 2026 Has Linear, Tactile, Clicky switch options Available in a 96% layout Built with the ANSI layout standard Provides dedicated media keys Has built-in sound dampening Uses a Plate Mount mounting style Supports Bluetooth, 2.4 GHz, Wired, Wireless connectivity Runs at a 8000 Hz polling rate Weighs about 1241 g Sized at 31 x 391 x 140 mm Made with a ABS case Offers Yes, Rgb, White, South-face, Rgb South-face, White South-face RGB lighting	Released in 2025 Has Magnetic, Linear, Tactile, Clicky switch options Available in a 80% layout Built with the ISO, ANSI, JIS layout standard Utilizes Hall effect sensors Supports QMK firmware Supports VIA configuration Enables rapid trigger functionality Uses a Tray Mount mounting style Supports Wired, Wired only, Bluetooth, Wireless, 2.4 GHz connectivity Runs at a 1000 Hz polling rate Made with a Aluminum, ABS, Wood case Offers Yes, North-face, Rgb, Rgb North-face RGB lighting
Score	Scores Performance: 88.1 Build Quality: 63.5 Productivity: 86.4 Customizability: 75.2 Portability: 56.8	Scores Performance: 92.4 Build Quality: 84.8 Productivity: 88.3 Customizability: 89.9 Portability: 76.5
Name	Name Keychron K4 Ultra	Name Keychron K8 HE
Release year	Release year 2026	Release year 2025
Switch Options	Switch Options Linear, Tactile, Clicky	Switch Options Magnetic, Linear, Tactile, Clicky
Profile	Profile Normal Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 96%	Layout Size 80%
Layout Standard	Layout Standard ANSI	Layout Standard ISO, ANSI, JIS
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 Wired, Wired only, Bluetooth, Wireless, 2.4 GHz
Polling Rate	Polling Rate 8000 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 Plate Mount	Mount Style Tray Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight Rgb, White, South-face, White South-face	Backlight North-face, Rgb
Case Colors	Case Colors	Case Colors
Case Material	Case Material ABS	Case Material Aluminum, ABS, Wood
Keycaps Material	Keycaps Material PBT	Keycaps Material PBT
Dimensions	Dimensions 31 x 391 x 140 mm	Dimensions -
Weight	Weight 1241g	Weight -