Apple Watch blood oxygen sensor is as reliable as ‘medical-grade device’ – study

As highlighted by MyHealthyApple on Twitter, a new study shows Apple Watch Series 6 can reliably detect states of reduced blood oxygen saturation with SpO2 below 90% when compared to a medical-grade pulse oximeter.
Apple Watch Series 6 and later models feature a Blood Oxygen sensor and app to conveniently measure the oxygen saturation of blood so users can better understand their overall fitness and wellness.
National Library of Medicine:Commercial smartwatch with pulse oximeter detects short-ti