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Questions about Charge HR and Charge 3

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‎02-17-2019 14:40

‎02-17-2019 14:40

I currently have a Charge HR and im looking to possibly get a charge 3 for better sleep monitoring and fitness.

 

My questions are

With my current Charge HR, how does Fitbit define restless sleep? And do the sleep stages represent any of the REM stages? OR was this Fitbit not sophisticated enough at the time to monitor REM and the other stages of sleep?

 

The Charge 3 monitors sleep stages as REM, light and deep. Do the light and deep sleep stages represent REM 3 for deep and light as 1&2?

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