Apple Watch heart rate sensor not working all of sudden?

Discussion in 'Apple Watch' started by SHNXX, Oct 30, 2015.

  1. SHNXX macrumors 68000

    Oct 2, 2013
    Anyone experience their heart rate sensors intermittently not working?
    I often keep getting no readings and then five minutes later it will work again.
  2. Newtons Apple macrumors Core

    Newtons Apple

    Mar 12, 2014
    Jacksonville, Florida
    Are you new to the Apple Watch, this is how it works.

    If you are moving around it will not check your Heart Rate . . .go figure!
  3. Cowboy1629 macrumors 6502


    Sep 20, 2012
    I've noticed since it's getting colder mine is having a more difficult time picking up my HR during exercise. I've found out if my wrist is moistened under the sensor it works quicker. If I don't moisten it, it will start working once I work up a sweat. Evidently when your skin is cold/dry it is more difficult to detect.
  4. sean000 macrumors 65816


    Jul 16, 2015
    Bellingham, WA
    First thing to check is to make sure the band is snug enough. Then try restarting the watch. My heart rate sensor has failed to log heart during a couple of different workouts in the past. Restarting resolved the issue. Not sure if that will work since your problem is intermittent.

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