Huawei's EMUI is a custom user interface developed by Huawei for its smartphones and tablets. Based on the Android operating system, EMUI offers a unique design and features that enhance user experience, including customizable themes, improved multitasking, and various built-in applications. The interface is designed to optimize performance and battery life while providing users with a smooth and intuitive experience. EMUI also includes features like Huawei's AppGallery for app downloads and Huawei Mobile Services for cloud and device management, making it a comprehensive platform for Huawei device users.