True coach person, the sports watch quantifies concretely our physical effort. It has the invaluable advantage of being worn on the wrist and therefore of being consultable at all times, even during the exercise. For our fitness sessions, we favor a model integrating a calorie count burned. It will also be equipped with training programs dedicated to weight loss as well as a heart rate monitor to monitor our heartbeats. The followers of trail or of trekking will rather bet on a watch of baroudeuse. Equipped with an altimeter and a compass, it is a reliable companion, even in the most remote places. For swimmers, go for waterproof watches.