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Level 1

4 points

Optical heart sensor vs ECG?

What’s the difference between an optical heart sensor reading and an ECG reading (that’s not available on the SE watch series)?

iPhone 8 Plus, iOS 13

Posted on Oct 5, 2020 12:00 PM

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Community User

Posted on Oct 5, 2020 12:24 PM

Read here;

And here;

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