The short version
Your phone will work in China, but not exactly as it does at home. Some services you use daily are unreachable without preparation, and the workaround has to be installed before you arrive because the sites that explain it are themselves unreachable from inside.
This is a practical page, not a political one. We describe what a patient needs to reach a hospital, a translator and their family, and leave the rest alone.
Three ways to get connected
| Option | How it works | What to know |
|---|---|---|
| Roaming on your home SIM | Works the moment you land; your home carrier bills you | Most reliable for a short trip, and the most expensive. Some carriers route data through home, which keeps familiar services reachable. |
| Travel eSIM | Buy online before you fly, activate on arrival | The simplest route for most patients. Needs an unlocked phone that supports eSIM. Data only; no Chinese number. |
| Local SIM | Buy at the airport or a carrier shop with your passport | Cheapest, and gives you a Chinese number. Takes twenty minutes of queueing and form-filling, and you cannot receive the code for anything registered to your home number. |
A local number is what Chinese services accept for registration, delivery and two-factor codes. If you plan to stay more than a fortnight or to book anything yourself, it is worth the twenty minutes. For a two-week surgical trip with a coordinator handling bookings, an eSIM is enough.
The apps worth installing before you fly
- WeChat — messaging, payments and the way hospitals and coordinators reach you. Almost every Chinese contact will ask for it.
- Alipay — the second payment app, and the one with better English support in places.
- Didi — ride-hailing, English interface, foreign cards accepted.
- A translation app with offline Chinese — download the offline package before you travel, because you cannot download it after you arrive.
- Your airline and hotel apps — for boarding passes and booking details you will need to show someone.
Install, register and verify all of them at home. Verification codes sent to your home number are the step that fails once you are abroad.
What is reachable, and the workaround
Several major Western services — including some search engines, social networks and messaging apps — are not reachable on a Chinese network. The standard workaround is a VPN, and it must be installed and tested before you travel: the sites that sell them are among those that are blocked.
Two practical notes. A VPN on your phone will also cover hotel and hospital wifi, which is otherwise filtered the same way. And roaming on your home SIM sometimes keeps you on your home carrier's network path, where the same services remain reachable without one — test this on arrival rather than assuming.
We do not sell, recommend or configure VPN services. What we will do is tell you plainly that this is the situation, so it is not a surprise on the first evening.
Keeping your family informed
The single most useful thing you can set up before surgery is a routine for telling people at home that you are fine.
Pick one channel and one time. A short message from your coordinator after each appointment is more reassuring than a stream of updates, and it stops your family calling the ward, which they cannot reach anyway. Tell them the time difference before you travel: China is UTC+8, and a message sent at nine in the evening here arrives at lunchtime in Europe and early morning in the Americas.
If you only remember one number
120 is the Chinese ambulance number, free from any phone including a foreign one, and it does not require Chinese to dial. Hand the phone to a member of hospital staff, a hotel receptionist or a passer-by if you cannot make yourself understood.
Save your coordinator's number and the hospital international department's number as favourites before you travel, so they are reachable without unlocking and searching. See patient safety for what to do in sequence.