Smartwatch is a wearable computer in the guise of a watch; current smartwatches have a local touchscreen interface for daily use, as well as management and telemetry via a smartphone app.

Smartwatches include mobile apps, a mobile operating system, and wifi/bluetooth connectivity, making them more similar to smartphones in terms of functionality.

Some smartwatches may be used as portable media players, featuring FM radio and Bluetooth headset playing of digital audio and video files.

Some types, referred to as watch phones (or vice versa), have mobile cellular capabilities, such as the ability to make calls.

They are usually powered by a lithium-ion rechargeable battery.

Digital cameras, thermometers, accelerometers, pedometers, heart rate monitors, altimeters, barometers, compasses, GPS receivers, tiny speakers, and microSD cards are peripheral devices that may be included in smartwatches.

A Smartwatch serves as a front end for a remote system such as a smartphone for a variety of functions, communicating with the smartphone via various wireless technologies.

Smartwatches are improving in terms of design, battery capacity, and health-related apps.

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