esigned to help serious fitness enthusiasts study and optimize their aerobic training, the Polar RS300X is a watch and heart rate monitor in one. Smart Coaching features help you train at the proper intensity for your desired results, with educational features such as the Polar Fitness Test designed to remove guesswork from your training. This bundle includes a wireless WearLink+ transmitter and S1 footpod.


A clear, multi-line, user-configurable display shows information such as distance, pace, and heart rate.

What s in the box?

Smart Coaching Features

Overall Features