Apple has launched its AFib History feature for Apple Watch users in mainland China, bringing an important heart health tool to a wider audience after a long regulatory wait. The feature helps people diagnosed with atrial fibrillation track how often their heart shows signs of irregular rhythm, giving them a clearer view of their condition over time.
The AFib History feature works by analyzing pulse rate data collected through the Apple Watch’s photoplethysmography sensor, and it then estimates how frequently a user’s heart enters atrial fibrillation, while also offering weekly summaries and deeper insights inside the Health app, including lifestyle factors like sleep, alcohol intake, and exercise.
According to Apple, the rollout follows approval requirements from China’s National Medical Products Administration, which regulates medical and health-related features before they become available to users in the country.
“Users diagnosed with atrial fibrillation can turn on the AF history feature to access important information such as the estimated frequency at which the user’s heart rhythm shows signs of atrial fibrillation.”
Users can review detailed history reports, download PDF summaries, and share them with doctors to improve communication and treatment planning. Apple says the feature targets users aged 22 and older who have already received a diagnosis.
The launch also adds to Apple Watch’s broader health suite in China, including ECG, irregular rhythm notifications, sleep tracking, and other wellness tools, which are now available across more than 150 countries.
