Compare MMD Princess Ultra Linear vs Bsun Bubble Linear Differences Side by Side

Explore the comprehensive side-by-side comparison of the MMD Princess Ultra Linear and Bsun Bubble Linear and view their biggest differences. The detailed comparison table allows you to see all the essential features, specifications, and benefits of each switch 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 2025 42g actuation force 48g bottom-out force 1.9mm pre-travel PC top housing	Released in 2024 45g actuation force 2mm pre-travel LY top housing
Name	Name MMD Princess Ultra Linear	Name Bsun Bubble Linear
Release year	Release year 2025	Release year 2024
Switch type	Switch type Linear	Switch type Linear
Factory lubed	Factory lubed	Factory lubed
Profile	Profile Standard profile	Profile Standard profile
Actuation force	Actuation force 42g	Actuation force 45g
Bottom out force	Bottom out force 48g	Bottom out force -
Pre travel	Pre travel 1.9mm	Pre travel 2mm
Total travel	Total travel 3.6mm	Total travel 3.6mm
Pins	Pins 5-Pin	Pins 5-Pin
Magnetic Hall Effect	Magnetic Hall Effect	Magnetic Hall Effect
Top Housing Material	Top Housing Material PC	Top Housing Material LY
Bottom Housing Material	Bottom Housing Material Nylon	Bottom Housing Material Nylon
Stem Material	Stem Material LY	Stem Material LY
Sound profile	Sound profile -	Sound profile -
Spring type	Spring type -	Spring type -
Double stage	Double stage	Double stage
Long pole	Long pole	Long pole
Dust proof	Dust proof	Dust proof
Water resistant	Water resistant	Water resistant
Weight	Weight -	Weight -