MediaTek has unveiled the Dimensity 8400, the world’s first upper-midrange Android chipset with an all-big core CPU. Redmi has announced that the Redmi Turbo 4 will be the first phone to use the new SoC, using the Dimensity 8400-Ultra platform. Redmi Turbo 4 is expected to launch in early January 2025, with blind pre-reservations already taking place. device will be rebranded internationally as Poco F7 or Poco X7 Pro, with rumors being contradictory. Regardless of the name, Redmi Turbo 4 will be available outside of China. all-big core CPU of the Dimensity 8400 may end the reign of the Snapdragon 7+ Gen 3 as the king of the upper-midrange, as it has been dominating the market for quite some time.