Fitness tracker wristband (Compatible with IOS and android phone) *New Watch Sensor : Lift Your Wrist to activate time display, display will be back to sleep soon to save battery. * Your health monitor: Help you to keep a good habit, health and happiness follow you * Love life walking from now on: it will record your step, distance and calorie, which can help you to set the target * Monitor your sleep: it is able to detect how long you sleep, through its health software, count up your time of deep sleep, light sleep * Smart reminder: In-call reminder, sedentary reminder, drinking reminder, wake up alarm etc * TW64 is made by TPU Polymer composite materials, containing features like light, high resistant and high damage resistance. * Light as feather, with advanced coloring and never fade, you are comfortable while wearing it which made with ergonomics, tested with 48 different position * Life Waterproof * 4.0 version Bluetooth, using international first-line sensor, it will be a good one has accurate data synchronization, miss no in-calling and accurate calculation of sport and sleep * Function description:step counts, distance measuring, calorie consumption management, sleep management, event trigger(water drinking, taking medicine, meeting etc), call reminder, message reminder,clock,sedentary reminder,anti-lost(positive and negative direction lookup),remote camera,vibration alarm clock.