The Polar S625X Heart Rate Monitor is ECG accurate, easy to use, and comes with a 1 year warranty. Designed for athletes and cyclists, the Polar S625X heart rate monitor is a powerful training tool.

Polar S626X features include OwnCal, OwnOptimizer, target zones with visual and audible alarm, computer interface via infrared data communication, Polar Precision Performance analysis software, watch features, and the WearLink 31 coded transmitter. Polar Exclusive- upload and view workout data from the Polar S626X to your Nokia 5140 phone.