How Do You Buy a Chinese SIM Card Without Choosing the Wrong Plan?

A Chinese phone number can solve local SMS and account problems that a data-only eSIM cannot. The trap is buying a package you do not understand: plenty of “data” that works only in one province, a promotional first month followed by a different price, or a plan that continues after you fly home.

Use an official service hall when possible. Bring the original passport and ask staff to write down the monthly price, included nationwide data, activation date and cancellation method.

Table of Contents

Choose the purpose before the operator

Data only: roaming or an eSIM may already be enough.
Local SMS: you need a mainland mobile number, not merely internet access.
Calls to hotels and drivers: confirm included voice minutes.
Long stay: ask about renewal, real-name status and what happens after the promotional period.

Questions to put on one screen

Is the data nationwide or local?
How many GB are at full speed?
What happens after the allowance: slower data, extra charge or cutoff?
Is this prepaid, monthly or contract-based?
Does it renew automatically?
Can I cancel at any branch, online, or only in the original city?
Will the number expire if I stop paying?
Are incoming SMS messages available while roaming outside China?

请问，包括所有费用一共多少钱？

Pronunciation: Qingwen, baokuo suoyou feiyong yigong duoshao qian?

How much is the total, including all charges?

Before leaving the counter

Insert the SIM and confirm signal.
Make one call or send one SMS if included.
Turn off Wi-Fi and test mobile data.
Save the phone number and operator name.
Photograph the plan page and service receipt.
Ask how to check remaining data.
Keep your home SIM safely; do not lose the number used by your bank.

FAQ

Can a hotel or airport kiosk sell a SIM?

Availability varies. Confirm the operator, plan and real-name activation rather than buying an unexplained card because it is convenient.

Will a Chinese SIM make every foreign app work?

No. A phone number and network access are separate from service availability. Prepare local alternatives and offline records.

Should I replace my home SIM?

Dual-SIM is safer when your bank and email still send codes to your home number.

Official information to check

Official guide for foreign business visitors: obtaining a SIM with a passport

Decide first: do you actually need a Chinese number?