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