What kind of tablet and wireless Internet are needed for traveling?

It is recommended to choose a nationwide wireless network card that includes traffic, so that you can access the Internet when needed, and you can access the Internet through the network in the hotel room when you go to a different area. Now most hotels have If there is this service, it will not delay the formation. As for what kind of network to choose, it is recommended to choose China Telecom 3G. To be honest, I have used both China Mobile and China Unicom. Sometimes people who are anxious about the speed will drop their computers.