Very good product. Lightweight, complete and functional. The fact that the GPS tag either in the watch is a plus. The touch ring filled his office. The heart rate sensor is forgotten during races. Time enough battery for those aiming marathons. Beyond that, it must be right. The software provides is quite poor in terms of its interface, but the Garmin connect website offsets (as the use of third party software as compatible Trailrunner). Compatibility with Apple played in my purchase (these are the only ones to offer a compatible software Mac OS).