HT204666: Your heart rate. What it means, and where on Apple Watch you’ll find it.
Learn about Your heart rate. What it means, and where on Apple Watch you’ll find it.
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Helpful answers
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Aug 21, 2015 9:36 PM in response to bquin1422by Rysz,There are two light sources and two light receptors (sensors).
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Aug 21, 2015 9:56 PM in response to bquin1422by LarryHN,★Helpfulthere are not - there are two light sources and two receivers (sensors)
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