iChoice Star Bluetooth Low Energy Activity Tracker with BMI Management,Tracking Steps,Distance,Calories Burned,Fat Burned Functions (Blue) Record and analyze your sleep quality BMI management and Tracks steps,stance,calories burned,fat burned Syncs automatically to your iPhone4S/5/5C/5S/6,Android 4.3 and up devices via Bluetooth 4.0,android APP will be published soon You can set goals,view progress and share with friends Optional wear ways:wear it like a watch with smooth,comfortable wristband;Or wear it on you collar or pocket with compact clip(wristband and clip are included)