The Redmi Note 12 is a line of Android-based smartphones as part of the Redmi Note series by Redmi, a sub-brand of Xiaomi Inc.

The Redmi Note 12 5G, 12 Pro 5G, 12 Pro+, and 12 Discovery were announced on October 27, 2022.^[6][7][8][9] The Redmi Note 12 Pro Speed was announced later on December 27, 2022.^[10]

In India, the Redmi Note 12 5G, 12 Pro 5G, and 12 Pro+ were announced on January 5, 2023.^[11][12] The Global Redmi Note 12 5G compared to the Chinese version has a better camera setup, fewer memory variations, support for microSD and a green color option replacing white.^[13]

On February 2, 2023 POCO announced the Poco X5 and the Poco X5 Pro, where Poco X5 is the Redmi Note 12 5G with a slightly changed design, more powerful CPU, and stereo speakers,^[14] and Poco X5 Pro is a global version of Redmi Note 12 Pro Speed with yellow color instead green in Redmi model.^[15]

On March 3, 2023 the Redmi Note 12 Pro was announced, which has combined specifications from Redmi Note 10 Pro and Redmi Note 11 Pro. Also, on March 6 Redmi announced Redmi Note 12S with minor differences comparing to its predecessor such as back design, absence of depth sensor and newer software.

On March 28, 2023, was announced Redmi Note 12 Turbo which is the first smartphone with Qualcomm Snapdragon 7+ Gen 2.^[16] Later it was released on the global market as Poco F5.^[17]

On May 29, 2023, was announced the Redmi Note 12T Pro, which has a more powerful CPU and slightly changed camera bump design compared to its predecessor.^[18]

The Redmi Note 12 Pro+ features a 200MP Samsung HPX sensor, a 120 Watt charging speed and a Mediatek Diemensity 1080. It also has a 4980mAh battery (LiPo). Other features include IP 53 Dust and Water resistance, headphone jack, IR Blaster, Dolby Vision and Atmos Support and dual stereo speakers.

The Redmi Note 12 and Note 12 5G/12R Pro, and Poco X5 have a front of Gorilla Glass 3, while the other models have a front of Gorilla Glass 5. The backs of the Redmi Note 12, Note 12 5G, Note 12 Speed/Poco X5 Pro, Note 12 Turbo/Poco F5 are made of polycarbonate, but Redmi for the Note 12 Pro, Note 12 Pro 5G, Note 12 Pro+, and Note 12 Discovery have their back made of glass. The flat frame on all models is made of polycarbonate.^[19]

The design of the camera island of most Redmi Note 12 series models and the Poco X5 Pro is similar to that of the Redmi Note 11T Pro. On the other hand, the camera island design on Redmi Note 12 is more similar to Motorola Edge 40 Pro.

On the bottom side of the Redmi Note 12, Note 12 5G/12R Pro, and Poco X5 is a USB-C port, a speaker, and a microphone. On the top side there is an additional microphone, IR blaster and 3.5mm audio jack. On the left is a dual SIM tray in the Chinese version of Note 12 5G and Note 12R Pro and a hybrid dual SIM tray in Redmi Note 12 and in the global version of Note 12 5G. A volume rocker and a power button with a mounted fingerprint scanner are on the right side.

In other models, on the bottom side, there are USB-C port, a speaker, a microphone, and a dual SIM tray. On the top side, there is a 3.5mm audio jack, an additional microphone, an IR blaster, and a second speaker. A volume rocker and a power button with a mounted fingerprint scanner are on the right side.