12-31-2021 14:47
12-31-2021 14:47
I noticed that sometimes when I look at the heart icon sometimes it's hollow and other times half full, and then full. What's the meaning of these different icons?
12-31-2021 14:52
12-31-2021 14:52
I think that's showing which heart zone you are in. Maybe empty below zone, half full in fat burn zone, full - cardio zone.