The Samsung Heart Rate Monitor lets you keep an eye on your heart rate and make sure youre exercising safely as well as effectively. Not only that but it connects easily, quickly and wirelessly with the S Health app on your mobile device, so you can conveniently track your exercise and record and monitor your progress. Thanks to the latest Bluetooth 4.0 wireless technology used in the HRM band, you dont have to struggle with clumsy cables and bulky batteries. Get the perfect fit with comfortable and flexible design. Connect with the S Health app easily and wirelessly. Wipe it clean easily thanks to water resistant materials. See your heart rate as soon as you put it on, its automatic. Size H11.9, W12.8, D4.2cm. Weight 0.14kg. Batteries required 1 x Li-Ion (included).