Talk:China/@comment-112.96.100.55-20151230182600/@comment-3564598-20160109140231

"Only China Unicom has 4G LTE"

Massive misconception. Every provider has 4G LTE. Whether your phone supports it is another matter. The newest iPhones and Nexuses will work with all three networks on their 4G LTE and other networks.

Also note that carrying a SIM registered to someone else carries the risk of being shut down with no recourse to any lost balance if they are found out, since this behavior is now quite illegal. On a lesser note, you will not be able to change your plan, add/remove services, or replace the SIM at the carrier store if the SIM is not registered to yourself.