Irregular rhythm notifications occasionally check the heartbeat for an irregular rhythm, which may indicate AFib.
Irregular rhythm notifications are not intended for people with an AFib diagnosis and will not work if AFib history is enabled.
To enable irregular rhythm notifications, people should ensure iPhone and Apple Watch software is up to date. Then, they can open the Health app on the iPhone and tap the tab labeled Browse. From there, they can select Heart, then Irregular Rhythm Notifications. This enables the notifications.
If people receive an irregular heart rhythm alert, it means the watch detected an irregular rhythm, which may indicate AFib.
People can talk with a doctor, who can carry out a physical exam and tests to check for AFib.