Material:ABS + Silicone(Bracelet) Calories, step counter:Yes Item:silicone wristband Weight measurement:Yes Sport Ware:Sport fan, Fitness enthusiasts Pedometer size:38mm x 25mm x 12mm Bracelet/band length:260mm Battery:Lithium battery use,replaceable. Colors:Black, Dark blue, Light blue, Green,Yellow, Orange Waterproof:Life waterproof Show More