Blackzebra TW64 Smart Watch Bluetooth Watch Bracelet Smartband Calorie Counter Wireless Pedometer Sport Activity Tracker Android IOS Phone Grey Once again break through the limit inteligent healthy new fashion bracelet. Your healthy monitor: Help you to keep a good habit,health and happiness follow you. Love life walking from now on: TW64 will record your step,distance and calorie,which can help you to set the target. Monitor your sleep: TW64 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 TW64 which made with ergonomics,tested with 48 different positio. 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.