Can you get a clear face at a distance of 20 meters behind the mobile phone?

Generally speaking, it may be difficult for an ordinary mobile phone to shoot a face at a distance of 20 meters. This depends on many factors, such as the pixel of the mobile phone camera, optical zoom ability, focusing performance and so on. Some high-end mobile phones are equipped with strong optical zoom function, which can shoot relatively clear faces from a distance to a certain extent, but it is also difficult to achieve very high definition, and some degree of blur or detail loss may occur. If you have high requirements for shooting clear faces from a long distance, you may need to