Xiaomi 12 adopts a new generation of Snapdragon 8 processor, equipped with LPDDR5 Full Blood Edition +UFS 3. 1, and adopts 4nm technology. The CPU core frequency is as high as 3.0GHz, and the built-in CPU is 4600mAh. Xiaomi surging P 1 charging chip is adopted, which supports 120W Xiaomi surging secondary charging +50W wireless secondary charging +65438.

The screen of Xiaomi 12 is an AMOLED screen with a 6.28-inch screen, which supports 12-bit color depth display. With the support of the front and rear double photosensitive elements, the brightness level of 16000 is achieved. Xiaomi 12 and 12X mobile phones adopt organic light-emitting diode flexible screens customized by Huaxing Optoelectronics, which support 12bit color numbers, with a resolution of 2400 x 1080, a refresh rate of 120Hz, a touch sampling rate of 480Hz and a peak brightness of1. This screen has obtained DisplayMate A+ certification, breaking the record of 15, supporting 16000 automatic brightness, Dolby Vision and HDR 10+, and the surface is covered with Corning Gorilla Glass. It is a screen with excellent display effect.