With easy and comfortable monitoring of real-time heart rate and calories burned, Suunto M2 is equipped with the essential tools you need to reach your fitness goals. It monitors you while you exercise to ensure you stay within the most effective training zone. If you"re going to burn those calories, make sure every move is a smart one. Features at a glance Real-time guidance: heart rate and calories burned Automatically switches between three heart rate zones to help reach personal exercise targets Suunto M2 comes with Suunto Dual Comfort Belt: comfortable textile belt, compatible with most gym cardio equipment and Suunto Fitness Solution Easy to use 9 languages: English, French, Spanish, Italian, German, Dutch, Portuguese, Swedish and Finnish Technical specifications Other Dot-matrix display Menu-based user interface Operating temperature -20C - +60C / -5F - +140F Selectable metric/imperial units Storage temperature -30C - +60C / -22F - +140F Water resistance 30 m / 100 ft Weight Max. 40 g Chronograph Stopwatch