Iuhan&reg; Fashion Smart Wrist Band Sleep Sports Fitness Activity Tracker Pedometer Bracelet Watch (Light Blue) Compatible with IOS: Iphone4s /5 /5c /5s and IOS 6.1or above . Aadroid System 4.3 or above( Bluetooth version 4.0) App to record your path of life and information Reminder / Call reminder / Message reminder IOS System unavailable Tracker steps / Distance measurement / Calorie consumption management / Sleep cycle / Time display Package Include: 1 x Smart Wristband 1 x Charging Wire 1 x English User Manual