1. Nature: visa full currency refers to a credit card that supports multi-currency credit card spending, while visa single currency card is a visa card with only one currency.
2. Handling fee: visa's full currency is directly converted into RMB without handling fee, while visa's single currency card has handling fee.
3. Scope of application: visa full currency can be used in many countries, regions and currencies, and visa single currency can only be used by special merchants who support visa.