When we will get a custom number of heart rate zone? Personally I would like to have six. Some wants less and some wants more then 5 zones.
I don't get it, how we have to be stuck at 5 all the time.
When we will get a custom number of heart rate zone? Personally I would like to have six. Some wants less and some wants more then 5 zones.
I don't get it, how we have to be stuck at 5 all the time.
