Clinical illnesses frequently result in cells receiving inadequate oxygen, which directly impacts how well they function and, in extreme cases, can be fatal. Tests to measure blood oxygen levels are therefore crucial in medical investigations. Smartwatches provide a number of health benefits, including the monitoring of blood oxygen, which is obviously one of them, to help you improve your health without visiting a doctor.

With that in mind, a person might be curious as to what the wristwatch actually performs when it checks blood oxygen levels. Are the Sp02 test findings reliable? Understanding how a wristwatch gauges blood oxygen levels is crucial before responding to those queries.