Xiaomi and Redmi belong to Xiaomi Company, and Xiaomi is the main mobile phone promoted by the company, which is divided into three generations: 1, 2 and 3, and there are also enhanced versions such as1s. Redmi is a low-end mobile phone later launched by Xiaomi company, although the hardware configuration is higher than that of the same price mobile phone. Black rice mobile phone is a registered trademark of a company in Shenzhen, but it has not been launched yet.