One UI is a user interface developed by Samsung for its smartphones and tablets. It is designed to provide a more intuitive and user-friendly experience, focusing on ease of use and accessibility. The interface features a clean layout, larger touch targets, and a simplified design that makes it easier for users to navigate their devices. One UI also includes various customization options, allowing users to personalize their home screens, themes, and app layouts. It integrates seamlessly with Android, enhancing features like multitasking and notifications, while also providing tools for better organization and productivity.