Phone card

China Mobile 中国移动

China Unicom 中国联通

China Telecom 中国电信

phone card 手机卡

1. China Mobile is the biggest telecommunication company in China.

2. I can watch videos without buffer. 

3. If I download some apps and need to sign up, I simply use my phone card number. Afterwards, those apps will send confirmation numbers and etc direcly to my phone number. Then, I can use the app right away.