Which temporary mobile phone card is better, mobile, telecom or Unicom? Make more cross-provincial calls and surf the Internet. Thank you.

First of all, how to surf the Internet? It is recommended to choose Unicom. Regardless of 3G, 4G is always faster than mobile. Secondly, Unicom is also very preferential in calling. You can set up a 3G single card for package B, and choose the package file that suits you according to your average monthly phone bill. If the traffic is not enough, you can add a traffic packet.