Three answers — where the card was issued, which network is on it, and whether Alipay or WeChat Pay is already bound — narrow down what usually happens when you add a foreign card, what usually breaks, and what to do about it. The check runs in your browser; nothing is uploaded.
Each answer changes the mechanism, not just the odds. Change any of them and the three steps below re-render immediately.
The default answer is the most common case, not a recommendation. Change the three chips to match your card.
Pick the three answers above and the result appears here.
All three answers live in the URL, so the whole result can be sent as one link. No account, no cookie, nothing uploaded.
The binding is not decided by Alipay or WeChat Pay. When you add a card, the app passes an authorisation request to your issuing bank, usually through a 3-D Secure check, and the bank answers. That is why the same card that works in a shop at home can be refused in a wallet: a wallet authorisation is a card-not-present, cross-border request, and banks judge it by a different rule than a card-present purchase.
The network sets what is eligible; the issuer sets what is allowed. Visa and Mastercard have been on the list longest and cover credit and debit; Amex joined in February 2025 with an eligibility caveat for cards issued by third-party banks outside the mainland; overseas-issued UnionPay is on the list but is the most variable, because many of those cards are debit-only and some cannot complete 3-D Secure.
What is already bound changes the remaining work. A fresh account has to pass identity verification and then add the card, which is two chances to fail. An account with one app already working only has to repeat the same steps in the second app — and the second app’s risk controls are often tighter on a young account.
This page describes the mechanism. The binding decision belongs to your issuing bank, and whether a particular shop takes your card depends on that shop’s acquirer — two cards from different banks is the only real insurance.
Yes. The identity check and the card binding both work from outside the mainland, and doing it at home is easier because your bank can text you codes and you can call them if the authorisation is refused. Neither app needs a Chinese phone number for this step.
A wallet authorisation is a card-not-present, cross-border request, and many banks block those by default or route them to a fraud check. The card itself is fine; the permission for online and overseas use is what is missing.
Amex has been on the accepted list in both apps since February 2025, with two limits: Amex says some cards issued by third-party banks outside the mainland are not eligible, and merchant coverage is narrower than Visa or Mastercard, so a bound card can still be refused at a small shop.
No. The three choices are written into the URL so the result can be shared as one link. Nothing is sent to a server, no cookie is set, and no account is involved.
Pay cash. Merchants in China are required to accept RMB notes, so a shop showing only a QR code still has to take your money. A few hundred yuan in small notes covers a dead phone, a frozen card and a merchant whose acquirer refuses international cards.