What about Motion & Fitness in iPhone when having an Apple Watch

Discussion in 'Apple Watch' started by lasniko, Dec 3, 2018.

  1. lasniko macrumors member

    Joined:
    May 24, 2015
    #1
    Hi there,

    I would like to ask when having and using an Apple Watch, should we disable the Motion & Fitness in iPhone?

    Is there any possibility of duplicate data?
     
  2. ftaok macrumors 603

    ftaok

    Joined:
    Jan 23, 2002
    Location:
    East Coast
    #2
    Don't turn off M&F on the iPhone. As long as the watch and the iPhone is paired, you won't get duplicate data.

    Put the AW as the primary source. The iPhone's data will be ignored when you have both the AW and the iPhone. If you have the iPhone alone, the Health app is supposed to use the iPhone's data for the duration when the AW is unavailable.
     
  3. lasniko thread starter macrumors member

    Joined:
    May 24, 2015
    #4
    Than you for your answers.

    As I understand the motion and fitness option must be enabled.

    I would like to have the option to disable iPhone but anyway :)
     
  4. ftaok macrumors 603

    ftaok

    Joined:
    Jan 23, 2002
    Location:
    East Coast
    #5
    You can disable it on the iPhone if you want. It's up to you. Just note that there will be some issues, which may or may not matter to you.

    1. You will no longer record activity during times where you have your iPhone, but you're not wearing the watch.

    2. I believe that when you are doing an activity that uses the GPS, it will only use the AW's GPS if you disable M&F on the iPhone. This could lead to lower battery life on the AW.

    Like I said, it might not be that big a deal to you. Just wanted to say that it's not required to have M&F turned on on the iPhone.
     
  5. akash.nu macrumors 604

    akash.nu

    Joined:
    May 26, 2016
    #6
  6. lasniko thread starter macrumors member

    Joined:
    May 24, 2015
    #7
    Then I will disable it! Because I don’t want to use iPhone as an activity tracker. When not wearing Apple Watch it is ok not to track anything. Exactly as a Garmin watch...

    @ftaok you mentioned that the when doing an activity only the Apple Watch’s GPS will be used. I thought that was the case... Standalone watch’s apps use iPhone’s GPS?
     
  7. nepalisherpa macrumors 68020

    nepalisherpa

    Joined:
    Aug 15, 2011
    Location:
    USA
    #8
    I don't either.
     
  8. ftaok macrumors 603

    ftaok

    Joined:
    Jan 23, 2002
    Location:
    East Coast
    #9
    What I mean is that on GPS type workouts (like outdoor running or walking), the built-in workout app will use the iPhone's GPS when available. The benefit of this is that it saves battery on the AW. If the iPhone is not with you, then it will default to the AW's GPS, thus using more battery than if the iPhone was available.

    Other workout apps behave differently depending on how that developer set up the GPS priorities. For example, the NRC app will use whichever GPS the workout was started from.

    EDIT - actually, I'm not entirely sure anymore. The GPS is located in a different area (Location Services). I think Motion and Fitness only applies the the Mx chip in the iPhone (or AW). In any event, if you don't want to count steps using the iPhone, then you could just turn it off.
     
  9. lasniko thread starter macrumors member

    Joined:
    May 24, 2015
    #10
    1) I just noticed that by opening in my Apple Watch these apps:

    - ismoothrun
    - runkeeper
    - built in workout app

    the gps (location services) icon is shown.

    I guess that there is a “cooperation” between the two GPSs” as @ftaok pointed.

    2) I will disable the motion and fitness and see how it will go. Hopefully there won’t be any issue with the Apple Watch.
     
  10. Julien macrumors G4

    Julien

    Joined:
    Jun 30, 2007
    Location:
    Atlanta
    #11
    Sure you do. Click on Today> Steps> Data Sources & Access.
     
  11. nepalisherpa macrumors 68020

    nepalisherpa

    Joined:
    Aug 15, 2011
    Location:
    USA
    #12
    Got it. I was looking at the wrong section.
     

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11 December 3, 2018