Difference 2: Only one currency can be used for settlement with single currency card. Dual-currency cards can be settled in two currencies, but these two currencies are not arbitrary and conditional.
Dual-currency card is a kind of bank card that only appeared in China in recent years. With the continuous development of China's economy and the continuous improvement of people's living standards, traveling and shopping abroad has become a very common thing, thus forming a wide demand for bank cards settled in foreign currency. Therefore, many domestic banks have successively cooperated with international bank card organizations such as VISA and MasterCard to launch bank cards with RMB and USD settlement functions. In China, RMB settlement can be realized through UnionPay. After going abroad, you can spend and withdraw cash at ATMs of merchants and banks that support Visa or MasterCard, and settle in US dollars.
There are two main types of dual-currency cards: one is a dual-currency credit card; The other is a dual-currency debit card. Dual-currency credit cards are credit cards with RMB and USD settlement accounts, and their functions are basically the same as those of single-currency credit cards. Dual-currency debit cards also have RMB and USD settlement accounts, which can be used for deposit and withdrawal and consumption of RMB and USD without overdraft function.
Currency exchange fee/In the current situation that foreign exchange has not been fully liberalized, the dual-currency card has brought convenience to people's consumption settlement for outbound travel. Make RMB and foreign currency freely convertible within a certain limit.
Source: Dual-currency Credit Card _ Baidu Encyclopedia