Compare Ajazz AK992 vs Keychron B39 Differences Side by Side

Explore the comprehensive side-by-side comparison of the Ajazz AK992 and Keychron B39 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 2023 Has Clicky, Tactile, Linear switch options Supports hot-swappable switches Offers Normal ergonomics Provides dedicated media keys Has built-in sound dampening Uses a Gasket Mount mounting style Equipped with a 4000 mAh battery Weighs about 1060 g Sized at 40 x 391 x 142 mm Made with a ABS, Aluminum, Plastic, PBT case Features PBT keycaps Offers Yes, Rgb RGB lighting	Released in 2026 Has Linear, Tactile, Clicky switch options Features a low-profile design Offers Alice ergonomics Runs at a 1000 Hz polling rate Equipped with a 800 mAh battery Weighs about 680 g Made with a Plastic, ABS case Features ABS keycaps Offers No RGB lighting
Score	Scores Performance: 51.2 Build Quality: 61 Productivity: 84.5 Customizability: 74.6 Portability: 54.4	Scores Performance: 48.2 Build Quality: 43.8 Productivity: 73.8 Customizability: 44.5 Portability: 49
Name	Name Ajazz AK992	Name Keychron B39
Release year	Release year 2023	Release year 2026
Switch Options	Switch Options Clicky, Tactile, Linear	Switch Options Linear, Tactile, Clicky
Profile	Profile Normal Profile	Profile Low Profile
Hot Swappable	Hot Swappable	Hot Swappable
Layout Size	Layout Size 96%	Layout Size 96%
Layout Standard	Layout Standard ANSI	Layout Standard ANSI
Layout Ergonomics	Layout Ergonomics Normal	Layout Ergonomics Alice
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 1000 Hz
Battery capacity	Battery capacity 4000 mAh	Battery capacity 800 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	Backlight
Case Colors	Case Colors	Case Colors
Case Material	Case Material ABS, Aluminum, Plastic, PBT	Case Material Plastic, ABS
Keycaps Material	Keycaps Material PBT	Keycaps Material ABS
Dimensions	Dimensions 40 x 391 x 142 mm	Dimensions -
Weight	Weight 1060g	Weight 680g