Currently, there are three mobile telecommunication providers in China: China Mobile, China Unicom, and China Telecom. Each of them offers featured products and services. The students may choose one based on your requirement. At the beginning of fall and spring semesters, the providers hold promotion fairs on campus and there will be discounts and freebies given if you recharge a substantial amount (at least 100 Yuan) for pre-paided services.
If you need to buy a mobile phone, a large variety of choices are available at Wudaokou or Zhongguancun mobile phone markets. Do take extra precaution and make sure that you purchase from a licensed shop.
China Mobile (中国移动): M-Zone (动感地带), Gotone (全球通), and Easyown (神州行).
China Unicom (中国联通): U-Power (新势力), CDMA, and RuYiTong (如意通).
China Telecom (中国电信)