The latest health-tracking feature on the Apple Watch has life-changing implications. Here's how to turn it on, and how it works.

The Apple Watch Activity Rings have transformed fitness tracking by combining simplicity with powerful tools to encourage healthier habits. By focusing on three core metrics—Move, Exercise, and ...

Big news, Apple Watch fans: The blood oxygen monitor is back. Apple made the announcement in a short press release on Thursday. The company says the feature is "redesigned," and will roll out to ...

The Apple Watch Ultra 3 hardly reinvents Apple’s most ruggedly handsome of designs, but it adds some potentially critical capabilities ...

You can monitor your heart rate on Apple Watch with the Heart app, and set up notifications for high or low heart rate, or an irregular heart rhythm.

You can use the ECG app on your Apple Watch to monitor your heart rate and detect irregularities, in which case you should ...