China SIM Card and eSIM: How to Get Online in China (2026)

You have three ways to get online in China: a mainland SIM card from China Mobile, China Unicom or China Telecom (bought on arrival, passport required), an international travel eSIM installed before you fly, or roaming on your home plan. Price matters less than routing — whether your data exits mainland China decides whether Google and WhatsApp work.

Which option should I choose: mainland SIM, travel eSIM, or roaming?

The trade-off is not cost. A mainland SIM gives you a Chinese phone number, which unlocks what a foreign number cannot: verification codes, ride-hailing, food delivery, ticket bookings. A travel eSIM keeps your familiar apps working but gives you no local number. Many travellers run both.

Will my phone work on Chinese networks?

Two things have to be true.

Your phone must be unlocked. A handset locked to a carrier such as AT&T, Verizon or T-Mobile will reject a Chinese SIM. Ask your carrier to unlock it before you travel; this can take a few days, so do not leave it to the airport.

Your phone must support the right bands. China's three carriers run 4G LTE nationwide and 5G in larger cities. China Mobile (中国移动) relies heavily on TD-LTE; China Unicom (中国联通) and China Telecom (中国电信) use a mix of FDD-LTE and TD-LTE. Most unlocked phones sold in the United States, Canada, the UK and Australia in recent years cover enough of these bands to work. The reliable check is your specific model's band list on the manufacturer's spec page, not a generic compatibility claim.

For eSIM: iPhone XR/XS and later, Google Pixel 3 and later, and Samsung Galaxy S20 and later generally support it, though this varies by the market a phone was sold in. On iPhone, open Settings, then Cellular; if you can add a cellular or eSIM plan, your phone supports eSIM.

How do I buy a SIM card after I land in China?

At the airport. Look for the China Mobile, China Unicom or China Telecom counters in the international arrivals area. Not every terminal has all three, and staffing hours vary, so treat the airport as convenient rather than guaranteed.

At a carrier shop in the city. Search Baidu Maps (百度地图) or Amap (高德地图) for the carrier name and walk in. Shops usually have more plan choices than an airport kiosk. Screenshot the Chinese name — 中国移动, 中国联通 or 中国电信 — so you can show a taxi driver or hotel desk.

What to bring:

• Your passport, the same one you entered on. There is no way around this.
• A payment method that actually works at the counter. Not every till takes foreign credit cards; some renminbi in cash is the safest backup.
• Your unlocked phone, and the SIM tray tool if your phone needs one.
• Patience if several international flights land at once. The transaction is short; the queue is the variable.

Ask for a plan sold to short-term visitors, and confirm three things before you pay: how much data, how many days it stays valid, and whether it can make international calls. Ask the staff to switch on a data usage alert too. Keep the receipt — you need it if the card is lost or stolen.

What is real-name registration and does it affect me?

Every mobile number in mainland China is registered to an identified person. For a visitor that means the clerk records your passport details, and you should expect to have your photo taken at the counter. It is routine and applies to locals too. The consequence: you cannot buy a Chinese number anonymously, so do not let a stranger "help" by registering a card in their own name.

Will Google, WhatsApp and Instagram work on a Chinese SIM card?

On a mainland SIM card, no — not without a VPN. Your data is routed inside mainland China, where Google services (Search, Gmail, Google Maps), WhatsApp, Instagram, Facebook and X are not reachable. This surprises most first-time visitors; it is not a fault in your SIM card.

Roaming on your home plan, and most international travel eSIMs, route your traffic out of mainland China, so those apps typically keep working. "Typically" matters: providers differ, and some route locally. Confirm with the provider before you pay, and do not assume a plan sold as a "China eSIM" is unfiltered.

For which apps are affected, what still works, and how to set up a VPN before you arrive, see our guide to using Google, WhatsApp and Instagram in China.

How do I set up an eSIM for China?

Install it before you fly, while you still have reliable internet. Downloading an eSIM profile needs a working connection — exactly what you will not have in an arrivals hall.

The sequence is the same across providers:

1. Buy the plan and receive a QR code or an app-based activation.
2. Scan the QR code in your phone's cellular settings to install the profile.
3. Label the lines clearly, for example "Home" and "China".
4. Set the China line as your data line, and leave your home line active for text messages only.
5. Turn off data roaming on your home line. This is the step that prevents an unpleasant bill.

When comparing providers, ignore star ratings and check four things: whether traffic is routed outside mainland China, data allowance, validity in days, and whether you get a local voice number (most do not). If you need a Chinese number for apps and bookings, an eSIM alone will not solve it.

Can I just use WiFi instead?

Not comfortably. WiFi is everywhere — hotels, cafes, malls, convenience stores, fast-food chains, airports — and hotel WiFi is usually free once you register at the desk. The catch: public WiFi in China often authenticates you with an SMS verification code sent to a Chinese mobile number. Without one you cannot get past the login page. Public WiFi is also filtered like any mainland connection.

Treat WiFi as a supplement, not a plan. Our internet and WiFi guide covers connecting in more detail.

How do calls, texts and topping up work?

Mainland mobile numbers are 11 digits, with country code +86. Incoming text messages are normally free, which matters because SMS verification codes are how you register for WeChat (微信) and Alipay (支付宝) — see our WeChat and Alipay setup guide. For calling home, use a data app rather than dialling internationally.

To add data or extend validity, use the carrier's own app, visit any carrier shop, or call customer service: 10086 for China Mobile, 10010 for China Unicom, 10000 for China Telecom. English support on these hotlines is not guaranteed, so a shop visit is often faster.

Coverage is solid in cities and along high-speed rail lines but thins out in mountain and rural areas. If you are heading somewhere remote, ask at the counter which carrier covers your specific destination rather than trusting a general claim.

FAQ

Q: Do I need my passport to buy a SIM card in China?
A: Yes. All mobile numbers in mainland China require real-name registration, so you must present your passport and should expect the clerk to take your photo. There is no anonymous option.

Q: Can I get a China SIM card before I arrive?
A: An eSIM is the only option you can fully set up before departure, and it is worth arranging in advance. Physical China SIM cards are also sold by online retailers abroad, but activation and registration terms vary by seller — confirm what you are getting before you buy.

Q: Will Google Maps work on my Chinese SIM card?
A: No, not without a VPN. Use Baidu Maps (百度地图) or Amap (高德地图) instead; Apple Maps also works in mainland China. Download an offline map before you travel as a backup.

Q: Can I keep my home number while using a Chinese SIM card?
A: Yes, if your phone supports two lines. Keep your home line active to receive text messages from your bank and other services, use the Chinese SIM or travel eSIM for data, and switch data roaming off on the home line.

Network access and app availability described here are as of September 2026. Carrier plans, prices and terms change without notice — confirm the details at the counter or with your eSIM provider before you pay. WeTrip does not sell SIM cards or eSIMs.