Ultimate performance watch for racing and training. Sapphire touchscreen and 2 bezels to choose from Digital crown to browse with ease Customizable sport screen for your own display Advanced training metrics with Coach AI support 40 hours of battery life in training mode Offline on-route map without getting lost Practical support for everyday situations Bezel material: Stainless steel Glass material: Sapphire crystal Case material: Glass fibre reinforced polyamide Strap material: Silicone Weight 83 g / 2.93 oz Wrist sizes: 125-175 mm (accessory strap -215 mm)