Compare Keydous NJ81 vs Apos NPKC RO75 Differences Side by Side

Explore the comprehensive side-by-side comparison of the Keydous NJ81 and Apos NPKC RO75 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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Main differences	Released in 2022 Has Clicky, Linear switch options Includes a Yes display Equipped with a 4000 mAh battery Weighs about 970 g Sized at 36 x 134 x 315 mm Made with a Plastic case Features PBT keycaps	Released in 2025 Has Linear, Tactile switch options Includes a No display Supports VIA configuration Supports VIAL configuration Features N-key rollover Has built-in sound dampening Runs at a 4000 Hz polling rate Equipped with a 6000 mAh battery Weighs about 1680 g Sized at 35 x 312 x 135 mm Made with a Aluminum case Features PBT, ABS keycaps
Score	Scores Performance: 48.4 Build Quality: 54.7 Productivity: 65.8 Customizability: 79.1 Portability: 80.3	Scores Performance: 86.3 Build Quality: 81.1 Productivity: 88.4 Customizability: 82.7 Portability: 91.9
Name	Name Keydous NJ81	Name Apos NPKC RO75
Release year	Release year 2022	Release year 2025
Switch Options	Switch Options Clicky, Linear	Switch Options Linear, Tactile
Profile	Profile Normal Profile	Profile Normal Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 75%	Layout Size 75%
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 Bluetooth, 2.4 GHz, Wired, Wireless	Connection Bluetooth, 2.4 GHz, Wired, Wireless
Polling Rate	Polling Rate -	Polling Rate 4000 Hz;1000 Hz
Battery capacity	Battery capacity 4000 mAh	Battery capacity 6000 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 Gasket Mount
Screw in Stabilizers	Screw in Stabilizers	Screw in Stabilizers
Sound Dampening	Sound Dampening	Sound Dampening
Backlight	Backlight Rgb	Backlight Rgb
Case Colors	Case Colors	Case Colors
Case Material	Case Material Plastic	Case Material Aluminum
Keycaps Material	Keycaps Material PBT	Keycaps Material PBT, ABS
Dimensions	Dimensions 36 x 134 x 315 mm	Dimensions 35 x 312 x 135 mm
Weight	Weight 970g	Weight 1680g