From the Q collection by Fossil, the Wander smart watch features: interchangeable light brown rich leather strap with buckle closure stainless steel round case tech-savvy dial with touchscreen functionality and customizable faces tracks everything from daily steps to calories notifications that alert you of incoming calls and texts built-in microphone and speaker: do a variety of tasks on your smartwatch using just your voice G-Sensor and gyroscope sensors approx. 45mm case size; 13.5mm case thickness; 22mm lug width; 195+/-5mm strap circumference compatibility: Android Devices 4.3+; iOS 8+/iPhone 5+ (Fossil Q App: 4.4+ and iOS 8+/iPhone 5+) operating system: Android Wear connectivity: Bluetooth Smart Enabled/4.1 Low Energy, Wi-Fi 802.11 b/g/n 4GB flash storage estimated all-day battery life (based on usage) wireless conductive magnetic charger charge time: 80% in less than 2 hours wireless syncing Imported. Powered by Android Wear, this touchscreen smartwatch tracks activity, connects to your favorite apps, receives display notifications and has customizable faces to fit your style. Fossil Q Wander is compatible with phones running Android OS 4.4+ or iPhone 5/iOS 8.2+. Supported features may vary by platform. Android and Android Wear are trademarks of Google Inc.