The official premiere of the Redmi K50 Extreme Edition smartphone (some sources also call it Redmi K50 Ultra) took place on August 11, and today the novelty has gone on sale in China. Judging by the ratio of characteristics and price, the new product will be given a very warm welcome. Redmi K50 Extreme Edition is built on the top Snapdragon 8 Plus Gen 1 single-chip system, equipped with an OLED screen with a built-in fingerprint scanner and a resolution of 2712 x 1220 pixels, a 5000 mAh battery with support for 120 W fast charging, a camera with 108…