A new high-tech blood oxygen sensor could be included in your next Garmin

Garmin has filed a patent application for a new method of measuring blood oxygen saturation levels, or SpO2, in smartwatches.

The patent, which was published on May 12, was initially filed in 2020, suggesting that the technology could be coming soon.

Garmin watches (and rivals like the Fitbit Charge 5) use a combination of red and infrared light beamed onto your wrist from the back of the wristwatch.

This can help you figure out what percentage of your blood is oxygenated and whether your SpO2 levels are normal.