Garmin Just Bought Moxy: What It Means for the “Muscle Battery” Feature

September 28, 2026

Garmin has quietly bought Moxy Monitor, a company known for making muscle-oxygen sensors. Garmin has not shared many details about the deal or how much it cost. But for anyone following fitness tech, this move makes total sense. It looks like the missing puzzle piece for Garmin’s upcoming “Muscle Battery” feature.

If you have been following our site, you already know we talked about this before. We covered how Garmin’s Muscle Battery leak revealed a shift toward SmO2 and how a Garmin app teardown leak showed the Muscle Battery feature is currently in the works. Now, buying Moxy explains how Garmin plans to make it all work. GARMIN