Smartwatch with activity tracking. TPU body and 3.3 cm TFT color screen with integrated USB charging. Adjustable silicone strap and metal buckle. Heart rate monitoring. Bluetooth connection with the app for iOS and Android. Smartwatch Activity Features: - Heart rate monitor - Calorie consumption - Pedometer - Sleep tracking - Remote camera control - Vibration alerts - Notifications. Battery: Lithium Polymer. Synchronization method: Bluetooth 4.0. Operating temperature: 10°C - 50°C. System requirements: iOS 9.0 / Android 5.0 and later. Instruction manual available in 4 languages: Spanish, English, French, and Italian. Presented in a designer box.