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Heart rate drops from 160 to 100 after 50 min running

Mica

Using Forerunner 255 (former user of Forerunner 235 for 7 years), noticied that after about 50 minutes running and reaching 160bpm, it suddenly went to around 100 bpm. 

Is it related to sensor? Outside temperature was about 18-20 degrees.

  • 0 in reply to 6742038

    Yeah, also there is no excuse for the newer ones being worse than older models.... Like my Vivoactive 6 locks to certain heart rate ranges (60, 90, 120, 150) then jumps suddenly. My old Vivoactive 4, while it certainly had delays, didn't do this. And it had an older sensor. Embarrassing.

  • 0 in reply to globoos

    My new Vivoactive 6 is sh**t as well. The 4 was laggy, but it didn't have the issue with locking to certain ranges then jump suddenly.

  • 0 in reply to 5930470

    Yes, I experience the same with the Vivoactive 6. Despite it was laggy a bit, my Vivoactive 4 didn't do this (using an older sensor)...