How do activity trackers know when I’m asleep? How they deduce REM sleep, deep sleep etc? 603 viewsJanuary 3, 2024 Question92.08K June 15, 2020 0 Comments How do activity trackers know when I’m asleep? How they deduce REM sleep, deep sleep etc? In: Technology 5 Answers ActiveNewestOldest Anonymous Posted June 15, 2020 0 Comments I believe they just measure your heart rate. It goes down significantly when you go to sleep You are viewing 1 out of 5 answers, click here to view all answers. Register or Login
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