A smartphone is a portable personal computer with a mobile operating system with features useful for handheld use. Smartphones, which are typically pocket-sized (as opposed to tablets, which are much larger than a pocket), can place and receive voice/video calls and create and receive text messages. Smartphones also have virtual assistants (such as Siri, Google Assistant, Alexa, Cortana, Bixby), a note-taking application, an event calendar, a media player, video games, GPS navigation, digital camera, and video camera. Smartphones can access the Internet through a cellular network or Wi-Fi and can run a variety of third-party software components ("apps" from places like Google Play Store or Apple App Store). They typically have a color display with a graphical user interface that covers the front surface. The display is almost always a touchscreen that enables the user to use a virtual keyboard to type words, numbers, and other characters, and onscreen press icons to activate "app" features.
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