Blood Oxygen

About

With the Blood Oxygen app on Apple Watch Series 6 or later*, you can measure the blood oxygen saturation levels directly from your wrist. Using the blood oxygen sensor on Apple Watch, the Blood Oxygen app can help you assess oxygen levels in your blood and get insights into how well your body is absorbing oxygen and overall wellness. Features • Allows you to take on-demand blood oxygen measurements. • Performs periodic background measurements throughout the day and overnight if you wear your Apple Watch to sleep. • Stores all measurements in the Health app on iPhone, with the ability to filter and view measurements taken while asleep or in a high-elevation environment. *For models of Apple Watch purchased in the United States on or after January 18, 2024 with part numbers ending in LW/A, the Blood Oxygen data analysis is performed on iPhone, and results can be viewed in the Health app.