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Polar FT7 Heart Rate Monitor. Whether you're a fitness newbie or a long-time fan, knowing your optimal exercising heart rate is important for your fitness goals. It has features simple enough for a beginner but still ensures the essentials are there, like a heart-rate alarm, calorie tracker, and comfortable heart strap.
I used a heart rate monitor for a few years to learn how many calories I burned during exercise. It helps to know roughly how much you burn and if you earned that piece of cake. I prefer the Timex watches to the Polar or Garmin models because they are cheaper, but the chest straps don't last as long as the watches because of all the sweat.