The Suunto Men’s M2 Box Heart Rate Monitor Watch displays your real time heart rate and calories burned in a large, easy-to-read format. It automatically switches between three heart rate zones to help you reach your fitness goals. You can synch with gym cardio machines using Suunto Fitness Solution Software via the included Dual Comfort belt. The M2 records up to a month’s worth of workout totals and is programmed for nine languages. You’ll train harder and smarter with the Suunto M2 Box Heart Rate Monitor Watch.