I have got my watch yesterday, so this might be a very dumb question, but I have to ask: Why does my watch counts my way to work as exercise? Today in the morning, I just went from the subway station to the office (1.3km / 0.8 miles) when my watch tapped me and said something like "Well done, you've finished your exercise". I went to my local Apple Store and a genius told me, that it has something to do with my heart rate & movement. But he wasn't quite sure. Do someone of you know for sure how this works? I read the manual twice, but can't find something like "Everything counts as exercise". And yes, I was in a rush.