What’s the latest on wearables for finding atrial fibrillation?

Five smart watches capable of recording an electrocardiogram and detecting atrial fibrillation have been cleared for the market by the FDA. The devices can continuously monitor a person’s pulse for an abnormally rapid heart rate and tell the wearer when to record an ECG, which involves opening an app and touching the side of the watch for 30 seconds. But it’s not clear if using this feature can improve a person’s health. There are many other ways to screen for afib. These strategies, which include simply checking one’s pulse or wearing a heart monitor, depend on a person’s afib risk and symptoms.