Why is my heart rate way too low to be correct for the first half of my run, then suddenly shoots back up to the correct hr after 15 minutes? Is this a known software glitch?
Known issue on range of Garmin watches from 2024. Garmin said it will fix it but never did and later just ignored the issue. And now even new watches suffer from same problem.
I bought it on its release date last May and have been running 300-400km a month. My FR970 has never experienced any heart rate errors like this. If you live in winter, the optical heart rate sensor may inevitably experience errors due to skin and capillary constriction caused by the cold.
