Polar

Features

1. Bluetooth® Smart wireless incorporates a coded 5 kHz transmission with a range of up to 10m
2. Soft textile chest strap comfortably fits your body shape and allows freedom of movement
3. The Polar H7 heart rate sensor features a user-replaceable battery
4. Bluetooth® Smart enabled devices include iPhone 4S and 5, iPod touch (5th generation) and Nano (7th generation) and iPad (3rd & 4th generation)
5. Add the free, Android-compatible Polar Beat app to your smartphone to enjoy all the training benefits of the H7 heart rate sensor on an Android 4.3 or later platform
6. Please note: this strap is generally recommended for sizes M-XXL