Nolia&reg; W6 Sports Health Smart Wrist Band Sleep Sports Fitness Activity Tracker Pedometer Bracelet Watch Small and light, simple and fashionable. Design of circular area for wrist, more comfortable to wear. Built-in 3D acceleration sensor with high sensitivity, can catch your every small action, making more accurate pedometer. Tracing your burning calories, movement step, movement distance. USB Interface,rechargeable, plug and play, exercise data memory, recording the amount of movement data by connecting the computer.