Anne Klein Women's AK/2010BFIT Digital FashionFit Interchangeable Black Silicone Strap and Gold-Tone Bangle Watch Set Digital fitness Tracker module features time, day/date, step counter, distance traveled, calorie counter and sleep monitor Interchangeable set includes gold-tone bangle, black silicone strap with gold-tone bezel, rechargeable fitness module, usb charger and free mobile app Quartz Movement Case Diameter: 36mm Water Resistant To 99 Feet