how does the fitness tracker know if i'm just in a slow moving car

Discussion in 'Apple Watch' started by chombiekay, Jun 19, 2018.

  1. chombiekay macrumors member

    Joined:
    Jun 19, 2014
    #1
    hi! i take the subway every day. often times this train moves slow, i can literally jog/run faster than it. how does my watch know not to take this into account as "exercise" when i'm on it?
     
  2. MrUNIMOG macrumors 6502

    MrUNIMOG

    Joined:
    Sep 23, 2014
    Location:
    Hamburg, Germany
    #2
    Because you're not actively moving. So as long as you don't manually start a walking, running or cycling workout, it won't mistake your train ride for exercise.
     
  3. chombiekay thread starter macrumors member

    Joined:
    Jun 19, 2014
    #3
    many thanks for this answer. i didn't even think about that. does it also take your BPM into considration?
     
  4. MrUNIMOG macrumors 6502

    MrUNIMOG

    Joined:
    Sep 23, 2014
    Location:
    Hamburg, Germany
    #4
    I think so, yes. Certainly during workouts.
     
  5. Julien macrumors G4

    Julien

    Joined:
    Jun 30, 2007
    Location:
    Atlanta
    #5
    Arm swing movements measured by the accelerometer and gyroscope.
     
  6. matrix07 macrumors 601

    matrix07

    Joined:
    Jun 24, 2010
    #6
    Arm swing & your heart rate will tell.
     
  7. Dino F macrumors 68030

    Dino F

    Joined:
    Sep 16, 2010
    Location:
    Croydon, South London, UK
    #7
    ...I don't think this is correct.

    It may not count it as exercise but for me, when I commute to work on the train, more often than not, I will get a message on my watch along the lines of '......only a short while to go before you close your exercise ring - a 5 minute walk should do it' and I stand on the train, but by the time I get off at my stop (without me physically moving), my exercise ring will have completed. More than likely, this is due to the vibrations from the train moving, which the watch assumes is me moving....
     
  8. Newtons Apple macrumors Core

    Newtons Apple

    Joined:
    Mar 12, 2014
    Location:
    Jacksonville, Florida
    #8
    It should not work that way. I ride a golf cart but it does not fill my rings, only when I walk or run. You should get some steps while riding but it should not fill up your exercise ring.
     
  9. Nell macrumors 6502a

    Nell

    Joined:
    Jun 25, 2012
    Location:
    London
    #9
    I don’t get exercise credit when I’m on the train and I think my watch is generally in do not disturb mode because my phone thinks I’m driving!
     

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8 June 19, 2018