Lightweight waterproof (IP67) activity tracker with comfortable TPE wristband to wear the bracelet both day and night. With easy to use 0.96” OLED colour screen. Including free APP in 10 languages to get insight into your achievements (for iOS 8.1 and Android 4.4 or higher). Functions included: sleep tracking, step count, distance, calorie count, heart rate monitor, blood pressure, blood oxygen and stopwatch. With this fashionable activity tracker you will step into a healthier lifestyle. Standby time of 7 days and working time up to 3 days.