Jarv Run BT Premium Bluetooth® 4.0 Heart Rate Monitor for Windows Devices Running OS 8.1 or Later inc. Nokia Lumia 635, 640, 735, 830, Icon, 930, 1020, 1030, 1320, 1520 and More - Black (Soft Strap)

The Jarv Premium Bluetooth 4.0 Smart heart rate monitor uses the latest Bluetooth (BLE) technology to connect to your Windows compatible devices including Nokia Lumia 730, 830, Icon, 925, 930, 1020, 1030, 1520 and other devices running on OS 8.1 or later, You can also use it to connect to other bluetooth activity devices such as bike cadence sensors .The heart rate monitor together with 3rd party Apps turns your Windows device into a mobile training device for runners, cyclists, and other fitness enthusiasts. It connects wirelessly via Bluetooth Smart technology to your Windows device without the need for any adapter and delivers accurate real-time heart rate data. The Bluetooth Smart heart rate monitor works with Runtastic, miCoach, and Track Runner fitness and sports Apps. One user replaceable CR2032 battery is included (approximately 3 year battery life)