Lens Material: Power Glass, Bezel Material: Stainless steel, Case Material: Fiber-reinforced polymer with steel rear cover, Strap Material: Silicone, Display Size: 33.02 mm (1.3") diameter, Display Resolution: 260 x 260 pixels, Connectivity: Bluetooth, ANT, Wi-Fi, Warranty: 01 Year, 010-02777-01.