A smartwatch is a computerized wristwatch with functionality that goes beyond timekeeping While early models can perform basic tasks, such as calculations, translations, and game-playing, 2010s smartwatches are effectively wearable computers. Many run mobile apps using a mobile operating system Some smartwatches function as portable media players, with FM radio and playback of digital audio and video files via aBluetooth or USB headset Some models, also called 'watch phones', feature full mobile phone capability, and can make or answer phone calls or text messages.
