This set includes an elegant Activity Crystal (27.5 x 10 mm) and two bracelets, both specially designed to carry it. Featuring a fully faceted crystal in a Swarovski-exclusive cut, the Activity Crystal measures your activities and sleep, and syncs with your smartphone. A battery and a blue tulle pouch are included. Wear it with the sleek black sport band or, for a more fashionable vibe, with the Slake Deluxe Bracelet in black Alcantara® fabric with a mix of sparkling crystals. Both bracelets are also compatible with the Swarovski Activity Crystal and Misfit Shine 1. The Activity Crystal is water resistant.