How to track AFib History on Apple Watch

If you’ve been diagnosed by a doctor with atrial fibrillation, you can use AFib History on your Apple Watch to estimate how frequently your heart is in this arrhythmia. You’ll need Apple Watch Series 4 or later, including Apple Watch SE, with watchOS 9 or later. When you view the results in the Health app on your iPhone, you can also see how different lifestyle factors may affect your condition.