So recently I've been varying my swim exercises. I usually start with a 400m mixed warm up, rest, then stop my watch by holding down the button, (do not save yet) then I contuine my work out with perfecting my stroke by doinging various exercises with floats and kick boards for a few laps (watch still stoped, not in rest) once done, I press button to start recording again and usually finish up with a 600m mixed stroke. During this time, the watch only recorded time. No other stats despite the app saying it's starting the activity again .
Also, the backlight and side touch continually get activated in the water. Still.