Polar H7 Heart Rate Sensor for Select Smartphones and Polar Devices (M-XXL, Blue)

The blue Polar H7 Heart Rate Sensor for Select Smartphones and Polar Devices (M-XXL) is an integrated chest strap and heart rate monitor designed to measure the user's heart rate. The H7 sends data wirelessly via either a Bluetooth data transmission to a compatible smartphone with supported heart rate service applications or to compatible Polar devices using a coded transmission. Additionally, the H7 features magnetic data transmission technology, GymLink, that allows the sensor to wirelessly communicate with other gym equipment. The strap is connected around the user's torso, just below the chest muscles. The H7 will transmit heart rate data while swimming to compatible Polar products, but the Bluetooth signal will not transmit.