Be educated about your body with the Polar RS100 Heart Rate Monitor. If running is what you do to stay in shape, this black Polar Heart Rate Monitor will give you valuable feedback that can help you improve your fitness or lose those last few pounds. Great for entry-level training, this wrist-bound Polar monitor combines all the heart rate features you need with the stopwatch you"re used to. Track your average heart rate and time for each lap so that you can integrate your target heart rate easily into your fitness running program. By measuring time spent in target HR zones, this heart rate monitor can calculate your calories burned based on your personal height and weight information. If you want to improve your fitness regimen or achieve weight loss goals, consider buying the Polar RS100 Heart Rate Monitor. Polar RS100 Heart Rate Monitor: * Black heart rate monitor * Worn on wrist * Measures time exercised * Calculates target heart rate * Measure time in target zone * Calculates calories burned based on height and weight input * Functions as a stopwatch