Hello, 5G is the latest network that is supposed to be faster. But I don't notice any difference from 4G to 5G.

Hello. I am far from being a specialist, for me read the specifications of different models, do not pay more for what you do not need for your Xiaomi 12 pro, first ask yourself the question of what you need and not fashion. The most important things for me are 6GB RAM or more and 128GB general memory or more. The difference between models comes down to details, such as the charger, the camera (with more or fewer pixels) and the stabiliser. After 3g, 4g or 5g, it all depends on what the different countries in Europe offer. I hope I've helped you. Best regards. D.V.

Unfortunately I can't answer the question because I bought it for someone as a gift and I don't know my way around Xiaomi either sorry