Compared with China Merchants Bank’s VISA dual-currency credit card and UnionPay single-currency credit card, the biggest difference is that the former is a dual-channel, with two payment channels: VISA and UnionPay: if you use the VISA channel for transactions overseas, the accounts will be denominated in US dollars. , you can repay in RMB or US dollars after returning to China; UnionPay single-currency credit cards can only be traded through UnionPay channels whether domestic or overseas. All transactions are automatically converted into RMB for accounting, and you can just repay in RMB.

If you do not want to go abroad, you can just apply for a UnionPay single-currency credit card - although "single currency", as mentioned above, only refers to the accounting method, not that it cannot be used overseas. For basic domestic use, UnionPay cards are of course the most convenient.