A smartwatch is an electronic bracelet. While early models can perform basic tasks, such as calculations, digital time telling. translations, and game-playing, but today’s smartwatches are effectively wearable computers. Many run mobile apps, using a mobile operating system and Bluetooth connectivity. As a rule of thumb, a smartwatch needs to be hooked up to a smartphone in order to work to its full potential. … Once you’ve connected a smartwatch to a smartphone, you can choose what notifications you get on your wrist – things like messages, emails, calls and social networks. A smartwatch is a computerized wristwatch with functionality that goes beyond timekeeping.