Gomeir&reg; Living Fitness Tracker Smart Band with Multi-Functions Activity Tracker Smart Bracelet for IOS7.0+ and Android 4.3+ Main Features: Upgrate Touch key, calorie tracker, sleep monitoring, alarm clock, call reminder, SMS reminding, remote carera, pedometer, distance monitoring, lost warning Achieve your goals - Just simply set up your daily activity level the tracker will record and indicate completion status. Count calories - Records calories burned throughout the day including base metabolic rate. Monitor your sleep - Automatic entry sleep mode when you go to bed to track the quality of your rest Long battery life, 7-10 days standby time - The bracelet is stylish, comfortable to wear and water resistant(IP67 waterproof), light weight. Its made of high quality of stretchy silicone material Easy-to-read display - Optional for landscape mode or portrait mode, view the time of day and your stats right on your wrist Download the app from App Store or Google Play Store, this traker is a system, Wristband + Traker+ mobile app, that tracks how you sleep, move and eat so you can know yourself better, make smarter choices and feel your best, It's compatible with iPhone/iPad with IOS7.1+ system (but sometimes iPhone4 does not work reliably, iPhone 4S and later model works great) and Android phone/tablet with 4.3+ system