Smartphones are handheld devices that combine the functions of a mobile phone and a computer. They allow users to make calls, send messages, and access the internet. Smartphones typically feature touchscreens, cameras, and various applications, or apps, that enhance their functionality. Popular operating systems for smartphones include Android and iOS. These devices have revolutionized communication and information access, making it easier for people to stay connected. With features like GPS for navigation and social media apps for sharing, smartphones have become essential tools in daily life. They also support various multimedia functions, such as music and video playback.