At present, the highest level of smart phone chips on the market is 4 nm, and two chips use this process, respectively, Qualcomm Snapdragon Mobile 8 platform and Mediatek Tianguet 9000. The two chips, manufactured by Samsung and Taiwan Semiconductor Manufacturing Co., are used in current high-end Android phones. Of course, there are higher 3-nanometer chips, but they are currently in a state of flow but not mass production.