Sparked Bluetooth Heart Rate Monitor for smart devices iOS and Android BLUETOOTH 4.0. Connect seamlessly with any Bluetooth 4.0 smart Device and compatible applications. EASY TO SETUP. Setup monitor directly from your favourite app. No need to fiddle with bluetooth settings on your phone. LOW POWER CONSUMPTION. Bluetooth smart technology means the battery will last more than a year. ERGONOMICALLY DESIGNED CHEST BELT. Super comfortable chest belt that can be used for long periods at a time. STANDARDISED BLUETOOTH INTERFACE. This means that it wil work with most fitness applications likr STRAVA, ADIDAS MICOACH, ENDOMONDO, SPORTS TRACKER and many more.