Normally my first 10 min of a recovery run are always under 100 bpm. Today i got >120 on my first 6 min. Then the watch got a plott goes 20 bpm down and it was all OK again.
A gap on min 3 - i took a watch away from a hand, but it was not really helpful.
Normal behavior is
This does not give much reason to be proud of the accuracy of garmins OHR in version 18.23.