How does the iPhone measure sleep activity?

Discussion in 'iPhone' started by Lolololhaa, Oct 5, 2014.

  1. Lolololhaa macrumors newbie

    Sep 19, 2014
    Did a search and come up empty..

    How does the iphone differentiate between sleeping Vs awake? Is it sound? motion? both?

    Just wondered.
  2. D1G1T4L macrumors 68000


    Jun 26, 2007
    Phoenix, AZ
  3. GB11 macrumors member

    Sep 14, 2014
    You can download the app and it ask you to turn it on and place it near your head on the bed face down. I suppose that it measures your movement. You can also set a range of wake up times and it suppose to wake you up at the top of your REM cycle. I downloaded it but haven't tried it yet.

  4. Tyler23 macrumors 603


    Dec 2, 2010
    Atlanta, GA
    It doesn't. It requires a third party app to sync sleep data.

    3rd party apps do it just fine. Tell it you're going to sleep and place it next to your pillow. It measures the quality of your sleep by measuring how often you move and how much you move. It's pretty informative.
  5. vi2867 macrumors 6502


    Oct 11, 2006
    Eastvale, CA
    I know there are some apps that you leave on your bed while you sleep and they measure your activity during the night. I think those apps will share your data with Health kit.

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