All mentioned Polar heart rate monitors are suited for fitness conscious individuals who want to be guided during their daily workout and exercise. Creating an improvement with the running routine, athletes, trainers, runners, and health conscious individuals should have the S120, S810i, S610i S410, S625X, RS 200, RS100, and RS200sd. And no other exercise equipment could do that except a heart rate monitor. Another unique feature of a heart rate monitor that surpasses the ability of a private fitness instructor is its capability to count the number of calories burned during the whole exercise plus the capacity to estimate the percentage of the fat burned. The FM technology makes it easier to have a precise heart beat rating within 3 heart beats per minute. This digital technology is also effective in assuring that the Timex heart rate monitor would not interfere nor receive interference with other heart rate monitors nearby. This in return ensures that every data the Timex heart rate monitor gives is accurate and synchronized. In spite of all these features pilled into one small device, Cardiosport heart rate monitor is very easy to use. The device only shows what is needed on a particular exercise. And with an easy touch in the button, it would display other functions. Stylish Cardiosport heart rate monitor never compromises style. Running is the best form of exercise for it enables the every muscle to move. And when we talk about running we often talk about treadmills. Not only it provides a better tool to keep track of our training, treadmills give us the convenience of being inside a safe room. With treadmills, we would not require ourselves to wear training clothes suitable for the summer days. It might improve your level of training for the equipments would provide you with a great room to move your body and a great fit to bend and stretch all you want. But the fact still remains that it would not give you the right monitoring you would need to move one step further in reaching your goal, which could only be done if you would use one particular device: heart rate monitor.