Make every beat count with Bingo f4 smart bracelet - the all round colorful digital display and heart rate with advanced blood pressure calculator a fitness wristband built for all-day, workouts and beyond. It provides everything you need to be updated as well as be one step ahead in technology. The smart band magnetic charging cable support any mobile charger and its 150mah polymer lithium battery gives you 15 days good battery backup you can sync its history but only supported to Android phones or iOS devices for which you need to download the Bingo sport/yoho sport app. The box contains - Bingo f4 smart bracelet + user manual + magnetic charging cable. Warrant period - the smart bracelet having a 6 months warranty.