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.
An Old Partnership Becomes Official
Garmin did not make a big splashy announcement about the Moxy purchase. They just admitted they bought the company and left it at that.
Even so, the two companies are old friends. Moxy has worked with Garmin gear for more than ten years. Athletes could already connect Moxy sensors to Garmin watches and bike computers to see muscle oxygen data right next to their heart rate and speed. Now, instead of just being partners, Moxy is part of the Garmin family.
Solving the Wrist Problem
Earlier leaks showed that Garmin applied for a trademark called “Muscle Battery” to track muscle oxygen saturation, known as SmO2. But there was a big problem: a regular smartwatch on your wrist cannot track oxygen levels deep inside your leg or arm muscles. You need a special sensor placed right on the muscle you are working, like your thigh or calf.
Moxy solves this. Their sensors use special light to check how much oxygen your muscles are using, how fast they recover, and when you are getting tired. By buying Moxy, Garmin gets the exact hardware and tech it needs to track this.
Will It Be on Your Watch?
Probably not. Your wrist is great for heart rate, but muscle oxygen is specific to whatever muscle is actually doing the work.
Instead of putting it in a watch, Garmin will likely take Moxy’s tech and turn it into a smaller strap or pod. This way, it can connect straight to your Garmin watch or phone app. And instead of making you look at complicated percentages, Garmin will likely turn all that data into a simple “Muscle Battery” score, telling you easily when your muscles are ready to go again.
What Happens Next?
Right now, we do not know if Moxy will keep selling its own separate gear or if everything will change under the Garmin name. But the good news is that current Moxy sensors still work fine with existing watches and computers.
By making this move, Garmin is getting ready to change how athletes track their fatigue and recovery.
Also Read: Garmin Breaks Down Massive Summer 2026 Software Updates in New Official Guide
