How to stay connected in China: eSIM and VPN against blocks

Your phone in China stops working the way you're used to. Google, Instagram, WhatsApp, and YouTube are blocked at the network level here, and home roaming outside the EU costs several times more.

There's a combination that solves both problems at once: an international eSIM plus a backup VPN app. Below we break down what exactly is unavailable, how an eSIM differs from a local SIM card, and what to set up before you fly.

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Connectivity in China: what works and what doesn't

💡 In short:

• Google, Instagram, WhatsApp, Facebook, YouTube, and X are unavailable in mainland China.
• An international eSIM routes traffic through a foreign network, so blocks usually don't apply to it.
• Keep a VPN as a backup for a local SIM and hotel Wi-Fi.
• A local SIM card gives you a Chinese IP address, so blocks do apply to it.

The blocks in China are broader than they seem. Google and Gmail don't open, Instagram, WhatsApp, and Facebook don't work. YouTube, X, and some of the news sites you're used to at home are also restricted.

Google Maps in China doesn't build routes or load maps. Your usual set of apps turns into a list of icons that do nothing. Local alternatives exist, such as Amap, WeChat, and Alipay, but switching to them for a short trip is inconvenient.

The second problem awaits you even without blocks. Roaming outside the EU is billed separately, and the bill for a couple of days of active internet easily exceeds the cost of the trip itself. A local SIM card is cheaper, but you need to get it at a carrier store.

How bypassing blocks works

An international eSIM solves both tasks in one step. It's a digital connectivity profile without a plastic card: you buy a plan online, scan a QR code, and get internet on the same phone.

The main difference from a local SIM is the traffic route. A Chinese card connects you to the network inside the country, where filtering operates. An international eSIM connects to the local network but transmits data through the provider's infrastructure outside the country.

In practice, this means your requests reach the internet already beyond the firewall. So Instagram, WhatsApp, and Google open on such an eSIM just like at home, and a separate bypass app is often unnecessary.

Not every plan will work. Check the description to see whether the package works in mainland China and where the traffic goes: providers explicitly state that data is routed outside the country. If there's no such note, clarify this before purchasing.

Plans with foreign routing are convenient to choose and set up for China: the profile arrives by email, and activation takes a couple of minutes.

Local SIM card or eSIM: what to choose

You buy a local card at an official China Mobile, China Unicom, or China Telecom store, not from street vendors. You need a passport to get one: mandatory number registration to the owner is in effect in China.

A local card is useful if you need a Chinese number. You use it to register in local apps, delivery services, and booking platforms within the country. The catch is that internet remains under filtering, and Western services won't open without a VPN.

An eSIM is more convenient for a short trip. You install the profile in advance, arrive with internet already working, and don't look for a store after a long flight. You usually don't need a number for calls, and messengers work without additional setup.

A compromise is also possible: an eSIM for internet plus a local card for calls and local services. Then you have working messengers and a Chinese number at the same time.

Do you need a VPN and how it helps

A VPN creates an encrypted channel and changes your IP address. The phone connects as if through a server in another country, so the filter sees only an encrypted data stream.

In practice, this means you need a VPN in two cases. First: you have a local SIM card or hotel Wi-Fi with filtering. Second: your eSIM for some reason doesn't route traffic outside the country.

Install the app before you fly. VPN service websites and some app stores are unavailable inside China, and you may not be able to install the program on the spot. Download it at home and test the connection in advance.

Keep two different services. Providers block specific protocols and server addresses, so a backup option significantly increases your chances of staying connected.

Preparation before departure

The sequence is simple, but it's better to go through it at home, not at the airport.

What to do in advance

• Buy an international eSIM and activate the profile before you leave.

• Save the QR code and plan details in notes or email.

• Install a VPN app and check that it connects.

• Download offline maps and a translator in case of a weak signal.

• Make sure your phone supports eSIM.

Check phone compatibility in advance. Not all models support eSIM, especially older ones or those bought in certain regions. If in doubt, find your model name in the list on the provider's website.

Make a backup plan. Even a working eSIM can fail in a remote area, so keep the hotel Wi-Fi password and a screenshot with the hotel address in Chinese handy. Comparing plans in advance is easier than figuring out rates on the spot.

Is using a VPN in China legal

Officially, only VPNs approved by local authorities are permitted in China. Such channels are primarily intended for companies, not private users.

For foreign tourists, a personal VPN remains a gray area. In practice, it's usually tolerated, but no one guarantees stable operation: the service may stop connecting at any moment.

It's also worth remembering about data. Don't access banking apps through unfamiliar networks and don't enter card details on unknown sites. Channel encryption protects the connection, but it doesn't replace caution.

Where else the eSIM and VPN combination comes in handy

This setup works not only in China. In several Middle Eastern and Asian countries, calls through messengers and certain social networks are restricted, and foreign routing solves the problem in advance.

In the UAE and Saudi Arabia, calls through WhatsApp and Teams are often unavailable. In Iran, Egypt, and Pakistan, social networks are filtered.

If you're transiting through such countries, keep a backup connection ready. One eSIM profile and one VPN app cover most scenarios without reinstallation.

⁉️🤔 Frequently asked questions

Is one eSIM enough without a VPN in China?

In most cases, yes. An international eSIM with foreign routing sends traffic outside the country, so social networks and maps open without an additional app. Keep a VPN as insurance: it will help if cellular networks start filtering the connection or the service fails in a particular city.

Which eSIM should I buy for a trip to China?

Look for a plan with a note about working in mainland China and with foreign traffic routing. Check the validity period, data volume, and support for your phone model. Note that packages for Hong Kong and Macau are often sold separately from the mainland part of the country.

What should I do if the VPN stops working?

Switch to another server or protocol in the app. If that doesn't help, turn on the backup VPN from the second installation. Hotel Wi-Fi can help for a short time: the connection there is usually more stable, but filtering works the same way, so some sites still won't open without a VPN.

In short: what to book

If you only need internet and messengers, get an international eSIM with foreign routing: that's enough for maps, messaging, and social networks. For streaming and work services, add a VPN app and install it before you fly.

The matrix is simple. Get a daily eSIM package if you need little data and only for a couple of days. An unlimited plan plus a VPN works for a two-week trip with work. A local SIM from a store is needed if a Chinese number matters to you for local services.

Set up an eSIM for China in advance so you arrive with working internet and don't look for a store at the airport.