I had a cardio with sophisticated data recovery computer is fun time and then stopped because it is time consuming and does not provide much ... This time I took the opposite party: cardio with minimum functions: instantaneous frequency during practice, and history of the medium frequency and max of training; I think it is enough. Furthermore, the use is simple (a single button which is pressed a given number of times to access the functionality) and the watch is an aesthetic good taste, not flashy ... Finally, the belt is not troublesome. It remains only to test the reliability in time.
