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Take an ECG with the ECG app on Apple Watch
Record an electrocardiogram with the ECG app on Apple Watch
ECG on the App Store
How to use the ECG app on your Apple Watch - TechRadar
What Does the ECG App on My Apple Watch Do? - How-To Geek
Apple Watch ECG app: what is it, how does it work and is it
ECG on the App Store
ECG app and irregular rhythm notification now available on Apple Watch
ECG Apple Watch App: The Ultimate Guide - iMore
Apple Watch ECG app: What cardiologists want you to know