Well, if you take China UnionPay when you spend money in Japan, it will be directly converted into RMB according to the UnionPay exchange rate. You can use your UnionPay exchange rate and use the global payment credit card to take the UnionPay channel.

If you use the GSM payment credit card to take the visa or master channel in Japan, then you can use the exchange rate of China Construction Bank to purchase foreign exchange, which is equivalent to automatically purchasing foreign exchange for repayment. You only need to repay your RMB account.

That's the difference, but I think the difference between the two exchange rates is really not big. Choose according to your own consumption preferences ~

There are still many China UnionPay in Japan, and in Europe and America, the role of global payment credit cards may be more obvious.