Been using my Runner Cardio GPS watch since October 2016. Until this past week, I’ve had no particular issue with the heart rate monitor. It has been as accurate as it needs to be. Then last week, I responded to the push notification/suggestion to wear the watch for a couple of hours to get a resting heart rate. This involved manually switching on the heart rate monitor. Perhaps it’s merely a coincidence, but since that day, the heart rate monitor has given crazy values when I run, For example, measuring 169bpm at the very START of the run, rising to 192 bpm. I have cleaned the contacts with alcohol, but things still aren’t right. The way I run/walk, once I’ve warmed up, my heart rate normally hovers between 125bpm and 140bpm. I’m looking for ideas on how to get the monitor back on track, and how to avoid the problem in future.
As a side question, where do I find the data for resting heart rate that the watch monitored? Does the software automatically use that data to set the resting heart rate threshold?