Mainland China is as close to cashless as any country gets. The two apps that replaced the notes — Alipay and Weixin Pay, better known abroad as WeChat Pay — were shut for years to anyone without a Chinese bank account. That barrier is gone: both now let an international visitor link an ordinary foreign card after a passport check.
Here is the setup, in the order worth doing it in — plus the part most guides skip: every scan is a network request, so once your money lives in an app it is only as reachable as your signal.
Do the setup at home
- Download the international builds of Alipay and Weixin before you leave, on your own Wi-Fi. App stores and large downloads can be slow or unreachable on a local Chinese connection.
- Register with your own overseas mobile number, not a Chinese one — that number is what the login and recovery flows will text you later.
- Have your passport to hand. Both apps check your identity against it, and the name on your profile must match the name on your card.
- Accept that you cannot rehearse. Linking a foreign card works from anywhere; spending with it generally only works once you are in mainland China.
Linking a card in Alipay
In the app: Me → Bank Cards → Add Card, taking the international-card option if you are offered one. Enter the number, expiry and CVV, plus the billing address exactly as your bank holds it. Then set a six-digit payment password, separate from your login one.
If no card option appears for your market, Alipay also offers a prepaid route: load a virtual card in the app and spend down the balance. Read its fees and limits in the app; the product has been renamed more than once.
Linking a card in Weixin Pay
Me → Services → Wallet, then the cards or overseas-card entry; some builds route it as Me → Pay → Cards → Add Card. Same ingredients — card details, an SMS code from your bank, a passport check.
Expect a narrower account than a resident's: international cards on Weixin Pay are generally for ordinary purchases only — sending money to other people and red packets (hongbao) are usually off the table.
Fees and caps: read them in the app
Both schemes apply limits per transaction and per year, and a percentage service fee above a modest spend threshold. Those figures have been revised repeatedly, and your own bank's foreign-transaction fee sits on top. Take the numbers from the app and from your issuer, not from an article.
Two things worth doing before you go: tell your bank you are travelling to China and want wallet charges authorised, and link a second card on a different network. A declined card with no backup, in a queue, is a bad afternoon.
Why this needs data all day
A QR payment is not a contactless tap: it is a round trip to a server, and it runs in two directions.
When the merchant scans your phone, their terminal does the talking, and a code your wallet already generated can survive a brief drop in signal. When you scan the merchant's code — the market stall, the vending machine, the shared bike, the table's ordering code — your phone makes the request, and that needs data. So does everything around it: ordering mini-programs, receipts, top-ups, the occasional identity re-check.
Transport is the sharp edge. Metro gates read a code generated on demand inside a transport mini-program; ride-hailing is an app; intercity rail tickets are bought, changed and shown in an app. All of it happens underground, outdoors or in a moving car — where there is no Wi-Fi to join. The mechanics are covered in In China your wallet is an app, and the app needs a signal.
The connection underneath it
A VamosData eSIM for China gives your phone mobile data from the moment you land, bought and installed on your own Wi-Fi before you fly. It works like international roaming: your phone uses the local radio network, but your data is carried out through a gateway outside the mainland and reaches the internet there. That is why your usual maps and messaging apps behave as they do at home — it was never a local connection to begin with.
Your normal SIM can stay in the phone for the bank SMS codes that card verification sometimes asks for, while your VamosData eSIM carries the data. Check your handset first with the device checker — phones sold in mainland China often ship with eSIM support disabled — and follow the iOS or Android guide at home.
The honest limits: join hotel or café Wi-Fi and you are on a local connection again, with the usual filtering, whichever SIM is in the phone. Routing is set by each plan's network partner, so if one app is critical to your trip, check the plan details first. And a dead phone is now a dead wallet, which makes a power bank part of the payment stack.
Carry a little cash anyway
Not as the plan — as the floor under it. Rules in force since February 2026 require businesses in mainland China to accept renminbi cash, though a small vendor may still grumble about change, and none of this is legal advice. A few notes work with a flat battery, in a basement, and in the restaurant whose terminal is having a bad evening.
For the wider picture of getting online there, read how to get internet on your phone in China.