The Bestdeal Bluetooth 4.0 V Smart Bracelet Watch Wireless Silicone Sports Fitness Tracker Wrist Watch Compatible for Android 4.3 or Above Android Smartphones,and IOS 7.0 or Above Apple iPhone with Giftbox Packaging(black color) 0.68'' OLED 96*32 screen shows the Steps, Calorie, Distance, Time, Sleep quality clearly Recording your exercise steps,walking distance,calories burned and sleeping. Smart Reminder:Incoming calls,messages,do some exercies,take your medication. Compatible with only IOS6/7, Android 4.3 and above. not Compatible with IOS8/8.1 Standby time up to 5-8 days. Date Record:30 days