My Garmin G1 stopped tracking heart rate once I started swimming activity (pool swim and open water). It was able to show the HR without the activity (even underwater). No issue tracking HR when I'm running.
My Garmin G1 stopped tracking heart rate once I started swimming activity (pool swim and open water). It was able to show the HR without the activity (even underwater). No issue tracking HR when I'm running.
On your watch, verify the setting Menu » Sensors & Accessories » Wrist Heart Rate » While Swimming