2014 New Water-Proof D2 Smart watch Bluetooth 2.1/4.0 Health Smart Bracelet Pedometer Activity-Tracker For Ios Iphone 4/4s/5s/5c Android Samsung Sony HTC(Fuchsia) Imported Material: Silicon(Water-resisting) Features:Clearly displays health parameters including steps, calories, distance, time and sleep quality Compatible with Bluetooth enabled Android ios smartphones, such as Ios Iphone 4/4s/5s/5c Android Samsung Sony HTC Supports Bluetooth 2.1/4.0+EDR It is suitable for office workers.weight imbalance people: sports enthusiast