Apple Watch and iPhone

Apple Heart Study

Results show that wearables can
detect atrial fibrillation

The Apple Heart Study app uses data from an Apple Watch to identify irregular heart rhythms, including those from potentially serious heart conditions such as atrial fibrillation. Preliminary results show that wearable technology can safely identify heart rate irregularities that subsequent testing confirmed to be atrial fibrillation, a leading cause of stroke and hospitalization in the United States.

Apple is conducting this research study in collaboration with Stanford Medicine to improve the technology used to identify irregular heart rhythms. Early diagnosis and treatment of irregular heart rhythms may prevent serious health issues. Visit Stanford Medicine for more information on the study.

How It Works

If a participant in the Apple Heart Study has an irregular heart rhythm observed they will receive a notification on their Apple Watch and within the Apple Heart Study app on their iPhone. Through the app they will be able to connect with a doctor who will further explain the notification and discuss next steps.


get the app

Step 1 - App welcome

Irregular heart
rhythm observed

Step 2 - Notification

Discuss next steps
with a doctor

Step 3 - Doctor consultation

About Our Doctors

The Apple Heart Study video (or audio) consultation connects participants with a board-certified, licensed primary care or urgent care physician from the Amwell Medical Group, Amwell’s clinical partner — 24 hours a day, 7 days a week. The doctor will make an assessment as part of the study and recommend next steps.

Our doctors

Supported by Amwell Telehealth Technology

Participants connect by video with a physician using technology from Amwell. These communications are designed to be secure and HIPAA compliant, protecting user privacy. Our security and privacy programs were built to comply with best in class standards and have passed extensive external security audits.

Apple Watch and iPhone