Compare Ajazz AJ199 Pro 4K Mouse vs Keychron BM27 Mouse Differences Side by Side

Explore the comprehensive side-by-side comparison of the Ajazz AJ199 Pro 4K Mouse and Keychron BM27 Mouse and view their biggest differences. The detailed comparison table allows you to see all the essential features, specifications, and benefits of each mouse 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 2024 Optical sensor Up to 32000 DPI DPI 4000 Hz polling rate 8 buttons Ergonomic shape Weighs 59g Sized 40 x 63 x 120 mm 300 mAh battery	Released in 2026 Up to 2400 DPI DPI 1000 Hz polling rate Ergonomic, Vertical shape Weighs 99g 500 mAh battery 100h battery life Macro buttons Software customization Onboard memory profiles Multi-device pairing
Name	Name Ajazz AJ199 Pro 4K Mouse	Name Keychron BM27 Mouse
Release year	Release year 2024	Release year 2026
Features	Features Adjustable DPI	Features Macro Buttons Adjustable DPI Software Tunable Memory Profiles Multi-Device Pairing
Weight	Weight 59g	Weight 99g
Dimensions	Dimensions 40 x 63 x 120 mm	Dimensions -
Battery capacity	Battery capacity 300 mAh	Battery capacity 500 mAh
Connection	Connection Bluetooth, 2.4 GHz, Wired, Wireless	Connection Bluetooth, 2.4 GHz, Wired, Wireless
Battery Capacity	Battery Capacity 300 mAh	Battery Capacity 500 mAh
Battery Life	Battery Life -	Battery Life 100h
Max Polling Rate	Max Polling Rate 4000 Hz	Max Polling Rate 1000 Hz
Min DPI	Min DPI 400 DPI	Min DPI -
Max DPI	Max DPI 32000 DPI	Max DPI 2400 DPI
Handedness	Handedness -	Handedness -
Button Count	Button Count 8	Button Count -
Sensor Type	Sensor Type Optical	Sensor Type -
Scroll Wheel Type	Scroll Wheel Type Standard	Scroll Wheel Type Standard
Acceleration	Acceleration -	Acceleration -
Switch Type	Switch Type -	Switch Type -