Does the “Bedtime” feature of the clock App cause battery drain?

Discussion in 'iPhone' started by Benz63amg, Nov 8, 2017.

  1. Benz63amg, Nov 8, 2017
    Last edited: Nov 8, 2017

    Benz63amg macrumors 68030

    Benz63amg

    Joined:
    Oct 17, 2010
    #1
    I like having that feature enabled because it inserts sleep analysis information into the Health App but do you guys think that the "Bedtime" feature in the Clock App which monitors sleep and creates sleep data in the Health app every night causes unnecessary battery drain?
     
  2. davelees76 macrumors member

    Joined:
    Oct 2, 2014
    #2
    I use it all the time and do not notice any battery drain at all.
     
  3. Benz63amg thread starter macrumors 68030

    Benz63amg

    Joined:
    Oct 17, 2010
    #3
    For the sake of discussion, do you think having the “Bedtime” feature enabled use more battery life as opposed to having the “Bedtime” setting disabled or is the difference in battery consumption negligible at best when it comes to that feature being enabled/disabled?
     
  4. davelees76 macrumors member

    Joined:
    Oct 2, 2014
    #4
    Unless you have an Apple Watch, what does bedtime even do?

    I have the watch and assume that it pulls data from that.
     
  5. Benz63amg thread starter macrumors 68030

    Benz63amg

    Joined:
    Oct 17, 2010
    #5
    Not true, the iPhone itself records sleep data and adds sleep analysis data into the health app every night. Don’t ask me “how” it knows you are asleep/awake but it does. The Apple Watch has more hands on sleep analysis as it will actually be on your wrist and monitor your movement during sleep etc
     
  6. Benz63amg thread starter macrumors 68030

    Benz63amg

    Joined:
    Oct 17, 2010
    #6
    I didn’t get my question answered, could anyone please chime in?
     
  7. Mw0103 macrumors regular

    Joined:
    Feb 22, 2014
    #7
    No. It doesn’t use more battery having it enabled. It only gives you an alert at bedtime and an alarm at the time to wake up. Those two things use no more battery than the clock running (which you can’t stop anyway). The “sleep monitoring”is just based on whether you are using your phone or not. It assumes if you are still interacting with your phone, you are awake, and if you are not, then you are asleep. It’s not watching you or running some sleep sensor.
     
  8. tromboneaholic Suspended

    tromboneaholic

    Joined:
    Jun 9, 2004
    Location:
    Clearwater, FL
    #8
    The Bedtime alarm starts out quietly and increases volume, so it’s technically possible that it uses less power than a standard alarm that starts out at full blast.

    A more pertinent question is why is this a concern?
     
  9. Benz63amg thread starter macrumors 68030

    Benz63amg

    Joined:
    Oct 17, 2010
    #9
    i've been expiriencing subpar battery life and i was wondering if the bedtime feature might be the cause but i guess not after the excellent advice i received from you guys in this thread, i assume having the "Bedtime"feature enabled uses no more battery than the internal clock of iOS running by itself non stop as Mw0103 mentioned so i'll keep the bedtime feature enabled. i like the fact that it inserts and creates sleep analysis data every morning into the Health app such as when i went to sleep the night before and when i woke up, great to be able to look through the health app and see all the data and the average sleep i had on various dates, its not a full on sleep tracker obviously by any means but at least its better than having no "Sleep Analysis" data in the health app at all.
     

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8 November 8, 2017