GenieUI 4.0 is a user interface for Tmall Genie smart displays. It includes the information assistant, the entertainment assistant, the lifestyle assistant and the personalized recommendation system based on natural human-machine conversational and graphic interaction. By combining algorithm-generated and manual-selected content, GenieUI 4.0 can deliver both rich and organized materials to its users. More than 2000 types of content can be delivered to millions of families in a personalized way. There are three key innovations that GenieUI adapts, which are the content generated by combining algorithm and manual selection, the personified multimodal interaction, and the warm aesthetic style which blends well in Chinese families.