Polar Verity Sense is an optical heart rate monitor that provides you with maximum freedom of movement and multiple options for viewing and recording your workouts. With Bluetooth®, ANT+, and internal memory, you can connect Polar Verity Sense to a sports watch or app to see your workout in real time, or view your data afterwards.
Comfortable, accurate, and simple to connect. This optical heart rate monitor armband with bluetooth connectivity from Polar is their most recent model with tons of battery life. Highly recommend!