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Heart rate measuring

Hi, 

I have noticed that my watch measures my heart rate very weirdly during activities. For example when i walk uphill and feel my heart beat fast it measures like 110 bpm, which there is no way, that it's that low and when I go for a normal chill walk it says my heart rate is 170bpm. It just makes no sense to me. 

  • I would suggest you clean the back of the watch (where it has the green flashing LEDs) and check if the strap isn't too lose.

    Also, check if the latest version of the firmware is installed.

    If the problem persists, consider performing a factory reset. I once encountered an issue with heart rate monitoring, and doing a factory reset resolved it for me.