ya, I wore a mio for a bit. not to reliable. hr was all over the place. sometimes my hr was so high I should have been in cardiac arrest according to the readings! they don't work consistently. I don't think they would work over clothing, so winter is out and besides there are no buttons I can work with gloves on so winter use is out. not sure what I was thinking. maybe because it was on sale? I still use and old garmin with big buttons on the face and chest strap I can press with winter gloves on. still very reliable after 10 years.
I bought the new Fenix3 HR with high hopes. I just don't see running at 7:30 pace being 160 heart rate. Makes no sense, I think it is picking up my cadence.