Question: what is pulse ox on garmin?
Answer: Garmin has introduced pulse ox sensors into a large part of its range, with the Fenix 6X, Fenix 5X, Vivoactive 4 and Forerunner 245/645/945 all using an SpO2 sensor. In this instance the on-screen widget will offer a blood oxygen percentage, coupled with data on your altitude, to show the levels of oxygen in the blood.