If you have a lot of Internet access and require fast network speed, and you are in a city, it is recommended to use China Unicom 3G card. China Unicom 3G card has the fastest network speed, best stability and coverage among the three major operators. It is also relatively wide, and the Internet access fee is not bad. Although some people think it is expensive, I think it is still quite good. Generally, the 3G package is only about 0.3 yuan for 1M of extra traffic, which is considered cheap. If it is a wireless network card, The extra traffic is only 0.1 yuan for 1M. The key depends on how you use it.

Click this URL to learn about China Unicom’s 3G package rates/3gindex/3gfee/A_plan.html