Wondering whether anybody else has experienced high heart rate readings. When I'm walking my HR usually averages around 90bpm, but on a couple of walks recently I averaged nearly 130bpm, which is that same as I averaged on a bike ride of 190km/ 5500m at altitude in the Alps recently, so I know it's incorrect. Looks like one or two people have had this issue on other models of the Forerunner too. My problem was easily solved by restarting the watch, so really I'm just wondering whether anybody knows if this is simply software needing a re-start/ refresh, or if there is an intermittent glitch of another type relating, perhaps, to the optical sensor.
Thanks,
Steve