This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Heartrate not correctly when it's get wet by sweating

Former Member
Former Member
Since a couple of days I have the FR235 and during the run when I get really sweaty the optical HR give incorrectly (too high) heartrate. When I dry up it is getting back too normal.

The software is up to date.

Anyone having suggestions?
  • Since a couple of days I have the FR235 and during the run when I get really sweaty the optical HR give incorrectly (too high) heartrate. When I dry up it is getting back too normal.

    The software is up to date.

    Anyone having suggestions?


    Hmmm, wear it tighter so that the sweat has less chance to get between sensor and skin? Or wear one of those tennis/sweat bracelet thingies (armband?) above the watch so that sweat from the rest of your arm doesn't reach it?
  • Since a couple of days I have the FR235 and during the run when I get really sweaty the optical HR give incorrectly (too high) heartrate. When I dry up it is getting back too normal.

    The software is up to date.

    Anyone having suggestions?


    Same here. My HR jumps to 170+ after 10 min of running. When I dry it with a shirt it falls to 160+
    Yesterdays run: https://connect.garmin.com/modern/activity/1189902333

    When I use a strap, my HR is around 145-150 on average all way, but with Garmin 235 its always around 155-160.

    I own a second pair of Garmin 235 and I must say that OHR is a real problem
  • Former Member
    0 Former Member over 9 years ago
    Same here. My HR jumps to 170+ after 10 min of running. When I dry it with a shirt it falls to 160+


    It may be latching onto your cadence. The OHRMs have a tendency to do that. You might try doing a slightly slower run where your cadence and HR are farther apart and see if it makes the leap up to test it.
  • Staying in position?

    Mine tends to slip down towards my wrist when I'm especially sweaty, which of course causes trouble with the heart rate reading. Tighter doesn't help, as I'm trying to wear it above the narrowest part of my forearm. I've considered putting a thumbtack in my arm, but instead just push it back up and ignore the oddities in the recording.

    -- Pete
  • Former Member
    0 Former Member over 9 years ago
    To avoid the watch slipping down your hand, I would advise to wear a tennis wistband just below the position you were your watch.
    Ohr is really below par at the moment. It is most evident when doing gym type workouts. I hope it is not a hardware problem and a future software update can fix it but I am not holding my breath.
  • OHR on any similar device is not that flash for most people. It's a technology more suited to low levels of activity, not for the highly active or activities that generate lots of wrist movement.