27.09 wrong Heart rate

on 27.09 back again issues with HR datas.

Peaks of HR not related to pace and not in uphills.

  • Adding to this thread - 965 product had the exact same problem 2-years ago. My replacement is now experiencing the same. I was active on this topic from here:  RE: Heart Rate Bug - Part 2 

    Seems to be HR and Altimeter sensor issue. Altimeter is constantly off, producing inaccurate elevation readings, and needing constant collaboration. I am running 27.09 as well and have gone through much troubleshooting including cleaning the device and contacting support.

    This HR issue is impacting my performance metrics and has been going on for over two months.

    Sharing screenshot from my run on 1/26/26 - you can see there are problem with my max HR completely incorrect for an easy run.

  • slower pace and HR jump....  when available new release to correct this?

    same path and same pace early january was a completely different HR