A:Answer Kimmy, Charging takes a unique cable that attached to the back of the "watch", and to a USB charging source (portable charger works fine) on the other end. This means that it must be removed from your wrist to be charged, which will result in the loss of the heart rate monitoring function, and probably affect pace counting (which doesn't matter if you're in GPS mode), but I'd expect everything to keep working and recording. Because the charging cable doesn't cover the heart rate sensors, you might even be able to keep that function working by placing a finger or thumb over the hear rate sensors:-)
