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Apple Watch user discovers A-fib heart issue with new ECG app, 'this probably saved you,' says doctor - 9to5Mac
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Changing Your Apple Watch or iPhone's Region Won't Enable ECG App Outside of United States - MacRumors
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ECG won't work - Does it just not work for some people? Should I exchange it for the SE, since I can't use the main feature I got the Series 8 for? :
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Apple Watch ECG App Hack: Enable Outside US In Unsupported Country On Series 5 & 4 Without Jailbreak | Redmond Pie
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My Apple Watch ECG starts going crazy sometimes once in a while. Is my watch broken or… : r/AppleWatch
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