smartwatch, a small smartphone like device worn on the wrist. Many smartwatches are connected to a smartphone that notifies the user of incoming calls, E-mail messages, and notifications from applications. Some smartwatches can even make telephone calls. Many smartwatches have colour displays, but some inexpensive models use a black-and-white “e-paper” display. The user can operate the smartwatch through a touch screen, physical buttons, or a combination of the two. Some smartwatches come with pedometers and heart-rate monitors to help users track their health.
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