Heartline is a virtual research study exploring how everyday technology like the iPhone and Apple Watch can enable earlier detection of atrial fibrillation (AFib), a leading cause of stroke. People 65+ with and without an existing AFib diagnosis may be eligible. Why should I join the Heartline Study? You’ll gain valuable insights into heart health as you contribute to important research, all from the comfort of home in just 5-30 min a week. By participating you can: • Live a heart healthy life: Learn about heart health and participate in activities that may help improve your sleep, fitness, and overall wellness. • Earn rewards: Complete easy and fun activities to earn rewards worth $150 or more, depending on your study group. • Advance research: Advance heart health research for yourself and future generations. This app integrates with the Apple Health app. Eligibility Requirements*: • U.S. Residents Ages 65+ • Own an iPhone 6s or later, with iOS 15 or later • Have Medicare coverage *These are the key participation requirements; other eligibility participation requirements will apply. Check your eligibility in the Heartline app. What technology do I need to participate? • You must own or purchase an iPhone 6s or later, with iOS 15 or later After enrolling, you may be asked to get an Apple Watch. If asked, you can receive one on loan, at no cost, for the duration of your enrollment in the study. Or you can choose to purchase an Apple Watch at a study-specific price and keep it after the study. Note: For current Apple Watch owners: We’re sorry, but the study group for people who already own an Apple Watch is full and not accepting new participants. Ready to get started? To see if you qualify to participate in the Heartline Study, download the app that could help shape the future of healthcare.