A smartwatch is a computerized wristwatch with functionality that is enhanced beyond timekeeping. Models can perform tasks, such as calculations, translations, and game-playing. Modern smartwatches are effectively wearable computers. Many run mobile apps, using a mobile operating system.
Some smartwatches function as portable media players, offering playback of FM radio, audio, and video files to the user via a Bluetooth or USB headset. Some models, also called ‘watch phones’, feature full mobile phone capability, and can make or answer phone calls.