It seems like it's hit or miss for me. When I choose "other" for a workout, it records every minute of that workout as exercise. When I choose "indoor walk" or even "outdoor walk," it sometimes only counts about 80% of that towards the exercise goal. In addition, I walked around the mall today for about 30 minutes at a fairly brisk pace (not all at once, went into a few stores), and it only counted that as about 5 minutes of exercise. I'm just really confused how this thing records everyday movements as exercise. I know it's anything above a brisk walk, but how fast do you have to be moving?!