The Falster Smartwatch boasts a full-round interactive touchscreen and a range of smart features powered by Android Wear 2.0 including discreet smartphone notifications, automatic accuracy, world time, activity tracking, weather and more. Choose from time or function-based displays for easy access to your favorite features. A battery-boosting design gives you up to 24 hours* of use on a single charge, and interchangeable straps allow you to customize your look. Each watch comes with an inductive magnetic charger. *Battery life varies based on usage. To avoid damage to your watch, only use with included charger. Do not use a USB hub, USB splitter, USB y-cable, battery pack or other peripheral device to charge. Band Width: 20 mm; Case Thickness: 12 mm; Inner Circumference: 200+/- 5 mm System Requirements: Android Devices 5+, iOS 9+/iPhone 5+ Discreet Alerts; Inductive Magnetic Charger (Included); Automatic Accuracy; Activity Tracking Connectivity: Bluetooth Smart Enabled / 4.1 Low Energy; Battery Life: 24HR battery life- Based on usage Warranty Material Stainless steel