Polar Charge 2.0 Connection type:USB A providing maximum precision for heart

providing maximum precision for heart rate readings and eliminating interference

When it comes to accuracy and connectivity

You can also use it to sync your training and activity data to the Polar Flow web service

subscription-free fitness band that helps you sleep better

Charge your Polar optical heart rate sensor with this USB charger

Polar Charge 2.0 Connection type:USB A providing maximum precision for heartPolar Charge 2. 0 magnetically snaps onto your watch and charges in the time it takes for you to get your gear on. Use Polar Charge 2. 0 to connect to a computer and quickly sync your training data to the Polar Flow web service.