Step-by-step guide on measuring blood oxygen levels on an Apple smartwatch
The headline feature on the Apple Watch Series 6 was the introduction of its Blood Oxygen app, letting you measure blood oxygen levels or SpO2 from the smartwatch.
While not a new feature for wearables tech, it is a first for Apple. And while it’s not a feature designed for health monitoring and medical use (yet), it’s another piece of heath data your Apple Watch can track from the wrist.
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