Internet in Shanghai: eSIM, Roaming, and Essential Apps

Staying connected in Shanghai needs more planning than in most cities. Many international websites and apps are inaccessible from mainland networks, including Google services and several Western social platforms. WhatsApp, Instagram, Facebook, and X are commonly reported as unavailable.

The exact list changes, and access can vary by network, so do not build a trip around a service working. Prepare a connection before you fly, download what you need offline, and have a backup for maps and messaging.

The three options

There is no single best setup. Choose based on trip length and how much you depend on blocked services.

1. International roaming

Using your home carrier’s roaming plan is the simplest option for a short trip. In many cases data is routed through your home network, so your usual apps may continue to work. But this is not guaranteed: it depends on your carrier and plan, and some roaming products route traffic locally.

Before departure:

• Confirm that China is included and check the daily or per-megabyte cost.
• Ask your carrier whether data is routed internationally and whether WhatsApp, Google, and other services typically work.
• Check your plan’s fair-use limit and speed after the cap.
• Make sure your phone is unlocked for international use.

Roaming is usually the least hassle for a 2–5 day visit and the easiest backup if a local SIM fails. It is often the most expensive option for a longer stay.

2. Travel eSIM

A travel eSIM can be installed before departure and activated when you land. It avoids queuing at a carrier counter and works on most recent unlocked phones. Coverage and prices vary by provider and by the countries included in the plan.

Two details matter more than the marketing:

• Routing: Some travel eSIMs route data through Hong Kong, Singapore, or another country, which may make blocked services reachable. Others connect to a mainland network directly and behave like local data. Ask the provider before buying if this matters to you.
• Phone support: Check that your phone supports eSIM and is carrier-unlocked, and that the plan allows the data speed and hotspot use you need.

Install the eSIM at home, while you have a reliable connection, and test that it appears in your phone’s settings. Keep your home SIM active for incoming texts if your bank uses SMS verification, but turn off its data roaming unless the plan covers China.

3. A local SIM card

A Chinese SIM gives you a local phone number, which helps with restaurant queues, some Wi-Fi registrations, and local services. China has three main carriers: China Mobile, China Unicom, and China Telecom. SIM cards are sold at official carrier stores; bring your passport, because real-name registration is required.

Pudong and Hongqiao airports have SIM and data-package counters in the arrival areas. Staff can help with phone compatibility and registration, and some short-term tourist packages are available. Queues and opening hours vary, so buying an eSIM in advance can save time if you only need data.

A local SIM is most useful for a stay of a week or more, or if you need a Chinese number. It is not required for a short visit: Alipay and WeChat Pay work with foreign numbers, and metro tickets can be bought with cash or an international bank card.

What about a VPN?

Some travellers use a VPN to reach services they rely on. China’s rules around VPNs are strict and enforcement is not something to take lightly; reliability also changes frequently. If you choose to use one:

• Set it up and test it before you leave home, not after landing.
• Keep a second way online, such as roaming or an eSIM, in case it does not work.
• Follow your own country’s travel advice and local rules.

This guide does not recommend specific VPN providers. Provider performance inside China changes, reviews are often promotional, and the legal picture can differ for tourists and residents. Treat any “guaranteed to work” claim with scepticism.

Wi-Fi in Shanghai

Free Wi-Fi is common in hotels, cafés, malls, and some public spaces. Airport Wi-Fi is free, and travellers without a Chinese SIM can log in using passport identification at the airport Wi-Fi page. That is useful on arrival, but airport Wi-Fi is not a substitute for mobile data once you leave.

Hotel Wi-Fi usually works for ordinary browsing, but it does not automatically bypass restrictions. Public Wi-Fi often asks for a Chinese phone number, so a data plan is more reliable. Avoid logging into banking or email accounts on an open network; use your cellular data instead.

If your phone’s Wi-Fi calling or messaging app relies on blocked services, it may not work even on Wi-Fi. Test before you depend on it.

Apps to install before you fly

Install these while your home internet is unrestricted, then sign in and verify them. App availability and features change; the aim is to have the essentials ready, not to fill your phone.

• WeChat: messaging with hotels, guides, and local contacts. It is also a payment app in China.
• Alipay: payments, metro QR codes, and some small services. It is the more foreigner-friendly of the two payment apps.
• A map that works in China: Google Maps is not reliable in mainland China. Apple Maps, Amap (Gaode), and Baidu Maps are better; Apple Maps is the easiest for English speakers, while Amap has more local detail. Save your hotel in Chinese.
• DiDi: ride-hailing. An English interface is available for many accounts, but having the destination in Chinese is still the reliable move.
• A translation app with offline packs: download Chinese offline before departure; do not assume Google Translate will load.
• Trip.com or 12306: hotels, flights, and high-speed train tickets. 12306 is the official railway platform.
• Your airline and hotel apps: boarding passes and booking confirmations should be available offline.

For food, Dianping and Meituan are the local discovery apps, but they are mostly in Chinese. Your hotel desk or a translation app can bridge the gap.

Set up before you leave

1. Check your phone is unlocked and supports the network bands used in China.
2. Choose roaming or an eSIM and install it before departure.
3. Register Alipay and/or WeChat with your home number (see the Shanghai money guide for card linking).
4. Download offline maps and translation packs for the areas you will visit.
5. Save offline copies of your hotel address, flight details, passport photo, travel insurance, and onward ticket.
6. Tell your bank you are travelling so card payments are not declined.
7. Pack a power bank and a universal adapter. China uses 220V, 50Hz, with Type A, C, and I sockets.

When you arrive

At the airport, look for the official inbound service counters in the arrivals hall. They can help with SIM cards, Wi-Fi, transport cards, currency exchange, and payment setup. Staff at these counters deal with foreign visitors routinely; touts offering “cheap SIMs” or a ride are not the same thing.

Once you have data, test the essentials: a map, a payment app, and a message to someone at home. If something fails, fix it at the airport while you still have staff support, rather than discovering the problem at your hotel.

Useful numbers and backups

• 12345: Shanghai’s public service hotline, with English-language support for many city questions.
• 110: police; 120: ambulance; 119: fire and rescue.
• Your embassy or consulate: save the address and phone number offline before you travel.
• Hotel front desk: the most reliable local backup for directions, taxis, and translation.

Connectivity in Shanghai is not difficult once it is set up, but the setup is front-loaded. Do the work before you board, and your phone becomes a map, wallet, translator, and backup plan rather than a source of frustration.

Sources and updates

Mobile registration, airport Wi-Fi, and public Wi-Fi details are checked against Shanghai government guidance and airport service information listed below. Telecom products and app availability change; confirm the current details with your carrier or at an official service counter.