POLAR H9 Chest Sensor TF Black, size XS-S

This POLAR H9 Chest Sensor TF Black, size XS-S chest band is an ideal accessory for anyone who want to track fitness progress. Since it goes around the chest, it can monitor exact measurements that will help you to better your sporting performance. It won't stand in the way of your movements and you won't even notice that it's there too much. The chest strap from Polar collects data through

POLAR H9 Chest Sensor TF Black, size XS-S Chest Band Key Features

• Measures heart rate while you engage in sport activities
• Accurate monitoring since it sits at the chest