My Garmin HR strap tore apart after 1 year and 4 months. My old H7 seems to delivery wrong values with my Fenix 5. E.g. if it should be about 130 to 140 it shows 110 to 120. The Garmin HRM usually worked fine. But as it seems to be rather weak, I'm looking for an alternative. Does anybody have experience with the Polar H10 and the Fenix 5 (or 5+, 6)?