Accessories for heart rate monitors, fitness trackers, and cycling sensors
Enhance your training experience and achieve a more complete understanding of your performance. With Polar accessories you can upgrade your heart rate monitor or mobile application.
Select your product and find out which one is most suitable for your training.
It couldn’t be easier to change the battery in your Polar product. This set includes a CR2025 battery, a sealing ring, and a battery cover for easy and quick replacement.$7.95More