The Polar S720i Heart Rate Monitor is ECG accurate, easy to use, and comes with a 2 year warranty. The Polar S720i heart rate monitor is the ultimate performance monitoring system for cyclists. This is one of our top selling HR monitors.

Polar S720i features include OwnCal, OwnIndex, trip, speed average and max, speed sensor, temperature and altitude, computer interface via infrared data communication, Polar Precision Performance 4.0 analysis software, watch features, and the T61 coded transmitter.