Internet in China for Tourists: SIM, eSIM, Roaming and Wi-Fi

For most short trips, international roaming or a reputable travel eSIM is the simplest way to have data immediately after landing. Add a Mainland mobile line when you genuinely need a Chinese phone number for calls, messages or local services.

Getting a signal and reaching an overseas app are separate questions. A phone can show 5G while a particular website or service remains unavailable on that connection. Prepare offline maps, addresses and booking details regardless of which option you buy.

Quick comparison

International roaming

Roaming keeps your home number active, which can help with bank and account verification messages. Beijing's official visitor connectivity guidance describes roaming as a convenient option while noting that charges can be high.

Before departure, confirm:

• whether Mainland China is included;
• the high-speed data allowance and throttling rule;
• hotspot permissions;
• incoming call and voicemail charges;
• the carrier's current statement about the apps and services you need.

On a dual-SIM phone, choose which line provides data and disable automatic switching if it could create an unexpected bill.

Travel eSIM

A travel eSIM can be installed before departure and activated according to the provider's instructions. It works only if the phone is unlocked, compatible and still has an available eSIM slot.

Check the exact phone model, activation trigger, validity period, full-speed allowance, hotspot rule, top-up process, routing statement and refund policy. Save the QR code and setup instructions offline. Some codes are single-use.

Most travel eSIMs provide data rather than a Mainland phone number. They may be enough for maps, messages and bookings but not for a service that needs to call or text a Chinese number.

Mainland mobile service

The State Council's guide for foreign visitors says foreign customers can take a passport or Foreign Permanent Resident ID Card to a China Telecom, China Mobile or China Unicom service office to apply for mobile service.

A local line can provide a Mainland number, but activation depends on the outlet, plan, device and real-name registration. Operator phone eSIM services are also device- and profile-dependent; Shanghai's official operator eSIM report should not be read as a guarantee that every foreign phone or short-term visitor can activate one.

Ask the operator to confirm:

• the exact phone model is compatible and unlocked;
• the plan includes the expected data, calls and messages;
• its expiry and cancellation terms;
• hotspot use and any international calling requirement;
• whether activation is completed before you leave the outlet.

Do not buy a line already registered to someone else.

App and website access

Mainland internet access is regulated, and some overseas services are blocked or may be unreliable. The current UK government China safety and security advice lists examples and notes that access can change.

Roaming, travel eSIMs, Mainland mobile data and hotel Wi-Fi can behave differently because their routing arrangements differ. Ask the carrier or provider about the tasks you need rather than relying on an old review of a brand name.

List the essentials:

• receive bank and email security codes;
• contact accommodation;
• open airline and train confirmations;
• use maps and translation;
• show tickets or time-sensitive QR codes;
• access approved work systems;
• make or receive local calls.

China Travel Pulse does not recommend unlicensed circumvention services. Follow Chinese law and your provider's terms.

Wi-Fi and portable devices

Airport and hotel Wi-Fi can be useful while resolving mobile setup, but access methods vary. A network may require a mobile number, room information, passport assistance or acceptance of terms in a browser.

Confirm the network name with staff. Do not install an unknown certificate or configuration profile from an unsolicited pop-up. A portable Wi-Fi device may help a group, but check battery life, deposit, data allowance, collection hours and return location.

Prepare an offline layer

Before flying, save:

• the first hotel's name, address and phone number in Chinese;
• flight and train details;
• booking confirmations and admission instructions;
• offline city maps and a Chinese language pack;
• emergency and insurance contacts;
• a screenshot of each static ticket code;
• enough RMB cash for the first journey and a meal.

Do not make every fallback depend on the same phone. A printed hotel-address card remains useful when a battery, account or network fails.

A practical setup by trip length

For a short city break, roaming or a travel eSIM plus offline backups may be enough. For a longer independent trip, keeping the home line active and adding a Mainland line can provide both account continuity and a Chinese number.

Install and sign in to essential apps before departure. Then test the complete chain after landing: data, hotel contact, map search, translation and one payment method. Continue with our guides to essential China travel apps, using WeChat as a tourist and paying in China.

Official and authoritative sources

• State Council guide to mobile service for foreign visitors
• Beijing government visitor connectivity guidance
• Shanghai government report on Mainland operator phone eSIM service
• UK government China travel advice on internet access

Plan availability, device support, routing and app access can change. Confirm the current product before purchase.

Last reviewed: 12 August 2026.