Polar M71 ti--The monitor that lets you get fit in style. Features: OwnZone - provides automatic intensity guidance with blinking and sounding alarm, OwnCal - automatically determines your calorie usage, Last exercise file - shows your exercise time, time in the OwnZone, calories burned, and total calories burned to date, heart rate monitoring, Heart Touch - a hands-free way to activate the backlight, watch, alarm, calendar and stopwatch functions, in-screen help function, and water resistant to 50 meters.