Watch Fossil Smartwatch Gen 4 FTW4018 Q-Explorist Watch with stainless steel case with a diameter of 45 mm, black dial, customizable, silicone strap also in black, Smartwatch with the ability to monitor your heartbeat, and receive notifications This Smartwatch with OS by Google technology, correlated with Google LLC, is compatible with Iphone and Android technologies Clock that requires compatibility with Android phones OS 4.4 and iOS 9.3 Smartwatch with many features: Customizable Dials, Notifications, Fitness tracker, Magnetic recharging, wifi and bluetooth connection, Automatic date / time update, Manage your music, Social, Interchangeable straps, Different time zones, Weather, Calendar, Quick charge 1:30 H for 80% of the battery, Waterproof up to 50 meters and GPS built in. Original box and official warrant bf22