Does it measure stages of sleep, like REM? null

I believe it does, yes. I’ve used it to track my sleep, and it tells me how long i slept for, how much of that was a deep sleep and other things like that so it should track the rem as well

Yes, it does. Gives full readout on my iPhone BUT don't know if it will do the same on another brand of phone.

“Does it measure stages of sleep, like REM?”

This question is for: Apple Watch Series 9 (GPS) 45mm Midnight Aluminum Case with Midnight Sport Loop with Blood Oxygen - Midnight - (2023)

Asked by BillS 1 year ago

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Apple Watch Series 9 (GPS) 45mm Starlight Aluminum Case with Starlight Sport Loop with Blood Oxygen - Starlight - (2023)-Front_Standard

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I believe it does, yes. I’ve used it to track my sleep, and it tells me how long i slept for, how much of that was a deep sleep and other things like that so it should track the rem as well
Answered by TristaM 11 months ago
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Yes, it does. Gives full readout on my iPhone BUT don't know if it will do the same on another brand of phone.
Answered by StanB 1 year ago
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