Apple Watch and iPhone

Apple Heart Study

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. 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.

Apple App Store

Note: Requires Apple Watch Series 1 or later with watchOS 4, paired with iPhone 5s or later with iOS 11.

How It Works

If you choose to participate in the Apple Heart Study, and an irregular heart rhythm is observed by the Apple Heart Study app, you will receive a notification on your Apple Watch and within the Apple Heart Study app on your iPhone. Through the app, you will be able to connect with a doctor who will further explain the notification information and discuss the next steps you need to take as a part of the research study.


Get the app and
join the study

Step 1 - App welcome

Irregular heart
rhythm observed

Step 2 - Notification

Discuss next steps
with a doctor

Step 3 - Doctor consultation

About Our Doctors

Your Apple Heart Study video (or audio) consultation will connect you with a board-certified, licensed primary care or urgent care physician from the Online Care Group, American Well’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 American Well Telehealth Technology

When you connect by video with a physician you will be using technology from American Well. These communications are designed to be secure and HIPAA compliant, protecting your 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

Learn More About the Apple Heart Study

Apple App Store