For more advanced users, there are several selections of heart rate monitors that would answer the demands for features. The second thing you have to consider in buying heart rate monitor would be the comfort. This particularly goes with the gender. It is given that most heart rate monitors are designed for men so the size of the strap would not easily fit to the women s. If you need to have a record on your previous trainings better have a large memory storage heart rate monitor. Computer compatibility: This might be a great tool to further monitor your fitness progress. All the data you record on the heart rate monitor can be uploaded on the computer. If you need this better have it. While you busy yourself to keep on tract, these Polar heart rate monitors are busy to keep your heart monitored and track your distance and speed. People who love cycling need not to worry about the monitoring of their heart rate. Polar heart rate monitors have Polar S725X, S720i, CS200, CS200cad, CS300, CS100b, CS100. Reebok heart rate monitors come with the Softflex chest transmitter unless it the strapless heart rate monitor. But either you use the one with a transmitter or not, you need not compare because both can give you the heart rate data you needed. Some special Reebok heart rate monitor models come with a cruise control training system that would automatically personalizes your target zone. The belt strap heart rate monitor and the strapless heart rate monitor both can accurately provide the user with accurate heart rate measurement which is impossible with manual method. The main advantage of the belt strap heart rate monitor on training is that the user can have an instant access on the status of the heart anytime he/she wishes to. This was also the world s first strapless heart rate monitor to be produced and marketed. But that did not stop there. Mio also created the calorie management system that provides the straightforward approach in managing the diet with the use of calorie intake monitoring. The result was pretty much expected.