"Combining all the necessary heart rate features with a new, slim design. It includes the popular Zone Pointer feature that helps keep you in your Target Zone, a stopwatch, convenient button free operation, and OwnCal? to track the calories you burn during your exercise."

"Combining all the necessary heart rate features with a new, slim design. It includes the popular Zone Pointer feature that helps keep you in your Target Zone, a stopwatch, convenient button free operation, and OwnCal? to track the calories you burn during your exercise."

…It's simple, it works because it contains electrolytes and they conduct an electric current. Swim, bike or run and it always delivers an accurate heart rate display.

Salt-free characteristics make it particularly suitable for long-term applications. Spectra 360 differs significantly from all other electrically conductive media...it works by wetting the skin, thereby reducing skin resistance.

Have an extra strap for when the other strap is in the wash, for another user or if your elastic strap is showing wear.

Comfort is key when training. That?s why Polar created the Polar WearLink?+ 31 coded transmitter belt. It not only measures your heart rate but also seamlessly adapts to your body shapes so you feel as if it?s not even there. The transmitter consists of an electrode strap and a connector, and with its…