Compare HMX Iris Linear vs x 80 Retros KD400 Linear Differences Side by Side

Explore the comprehensive side-by-side comparison of the HMX Iris Linear and HMX x 80 Retros KD400 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.

Model
	90	79	Select a switch to compare
Rating	0.0 stars (0 reviews)	0.0 stars (0 reviews)
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Main differences	45g actuation force 52g bottom-out force 2mm pre-travel 3.6mm total travel UPE, PTFE stem Deep sound profile 18mm spring	57g actuation force 63g bottom-out force 1.2mm pre-travel 3.5mm total travel POM stem Clacky, Deep sound profile Standard spring 22mm spring Long pole design
Score	Compared with medium linear switches Overall / Value:89.5 Materials:90.4 Finish:83.9	Compared with medium linear switches Overall / Value:79.4 Materials:76.6 Finish:83.9
Name	Name HMX Iris Linear	Name HMX x 80 Retros KD400 Linear
Release year	Release year 2026	Release year 2026
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 45g	Actuation force 57g
Bottom out force	Bottom out force 52g	Bottom out force 63g
Pre travel	Pre travel 2mm	Pre travel 1.2mm
Total travel	Total travel 3.6mm	Total travel 3.5mm
Pins	Pins 5-Pin	Pins 5-Pin
Magnetic Hall Effect	Magnetic Hall Effect	Magnetic Hall Effect
Top Housing Material	Top Housing Material Nylon, PA12	Top Housing Material Nylon, PA12
Bottom Housing Material	Bottom Housing Material -	Bottom Housing Material -
Stem Material	Stem Material UPE, PTFE	Stem Material POM
Sound profile	Sound profile Deep	Sound profile Clacky
Spring type	Spring type -	Spring type Standard
Spring length	Spring length 18mm	Spring length 22mm
Spring material	Spring material Stainless Steel	Spring material Stainless Steel
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 3g	Weight -