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Apple watch

What is going on if a flashing green light appears on the back of my Apple Watch?

Apple Watch Series 5, 9

Posted on Apr 6, 2023 10:20 AM

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Posted on Apr 6, 2023 10:43 AM

That means your heart sensors are working. You shouldn't see them at all if the watch is strapped to your wrist and is snug enough to not flop around.

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Apple watch

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