Foldable smartphones are innovative devices that feature flexible screens, allowing them to open and close like a book. This design enables users to enjoy a larger display while maintaining a compact size for portability. The technology behind these screens often involves advanced materials, such as OLED (Organic Light Emitting Diode), which can bend without breaking. These smartphones typically come in two main types: clamshell models that fold vertically and tablet-style models that fold horizontally. Major brands like Samsung and Huawei have introduced foldable options, aiming to enhance multitasking and provide a unique user experience.