adidas and POLAR have been working together to combine the very best running technology in one seamlessly integrated training system.
A system that doesn’t just help you improve your training. It becomes part of you.

The Polar RS800 Running Computer, the heart of the integrated training system is the most advanced product of its kind on the market today. It continuously collects, records, and displays information collected from the Polar WearLink® transmitter and the Polar s3 Stride Sensor™ (when running). The athlete receives constant feedback during the training session regarding heart rate and recovery, speed, distance, running cadence and average stride length. After the session, download the data to a PC using the Polar ProTrainer 5 software, and add it to a training logbook, in a few simple steps. This means an end to accidentally erasing data on your watch and the slow, tedious job of copying data by hand.
 

Connecting the technology of the RS800 Running Computer to your body are several adidas products. adiSTAR Fusion connects seamlessly and unobtrusively the body to the RS800. The adiSTAR Fusion apparel line includes several styles of attractive t-shirts, long-sleeve shirts, bras, and women’s shirts; all feature built-in soft, washable textile heart rate sensors that fit comfortably on any body type. The POLAR WearLink® snaps easily onto all of these, with no further adjustments.