A smartphone is a portable device that combines the functionality of a mobile phone with advanced computing capabilities. Equipped with a touchscreen interface, it allows users to make calls, send messages, browse the internet, and access a wide variety of apps for tasks like photography, navigation, entertainment, and productivity. Modern smartphones often feature high-resolution cameras, powerful processors, ample storage, and connectivity options such as Wi-Fi, Bluetooth, and cellular networks. They serve as all-in-one tools for communication, work, and leisure, seamlessly integrating with digital ecosystems.