Over the last week , I have been getting Heart Rate drop outs in the non activity heart rate monitoring, I thought it was due to my metal strap not being tight enough ( as it is now cooler my arm has shrunk) so I have put back on the rubber strap and fitted snugly. I have had t least 3 drop out periods today of between 10 and 30 mins, I have not had it like this before, so not sure if it latest firmware
