AsteroidOS

An open-source operating system for smartwatches.

Unclaimed

13 ratings3.88

Saves470

CategoryUtilities

PlatformWeb

PricingFree

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AsteroidOS is a customizable open-source operating system designed for smartwatches, featuring always-on display, fitness tracking, customizable watchfaces, app launchers, and broad device support. It emphasizes community-driven development with ongoing enhancements and a growing ecosystem of apps and watchfaces.

open-source

Ratings & Reviews

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3.88

13 reviews

Product

3.38

Design & Polish

3.88

Performance

4.38

Mobile PageSpeed

Performance: 88 out of 100, Needs improvement
Accessibility: 75 out of 100, Needs improvement
Best Practices: 77 out of 100, Needs improvement
SEO: 91 out of 100, Good

Anonymous reviewer

9/14/2026

A smartwatch OS that seems to respect the tiny screen. The customizable QuickPanel, launcher choices, and watchface gallery that pairs faces with wallpapers all feel well judged. I'd put device support status earlier in the install flow, since hardware choice is the first real decision.