Apple rolled out a redesigned Blood Oxygen app for Apple Watch in the U.S. with watchOS 11.6.1, and we're here to help you ...

Apple Watch’s ECG app is officially here: 5 things to know The Apple Watch now offers two features OK’d for medical use, thanks to an update the Cupertino, Calif.-based tech maker released Dec. 6.

Do you use your Apple Watch's ECG feature? If not, this lifesaving story should change your mind and get you to start using it. Here's what happened.

To set up heart rate notifications, go to the Apple Watch app on your iPhone, tap My Watch, tap Heart, tap High Heart Rate ...

At a recent Apple Store event, doctors shared aspirations for, and current limitations of, the sensor-laden smartwatch.