An Apple oxygen check a day will not keep the doctor away, at least not yet. I wear an Apple Watch for fitness motivation and to receive phone notifications, and an Oura Ring to track my sleep. Blood oxygen and pulse oximetry are terms that we’ve heard a lot about during the covid pandemic,” she said. Unlike finger pulse oximeters, these two smartwatches try to read your blood oxygen from your wrist. Just the slightest bit of movement — even breathing too heavily — sends my Apple Watch into error mode.

Source: Washington Post September 23, 2020 11:01 UTC