Excuse me, is it better to apply for a single-currency card or a dual-currency card to apply for a credit card in Korea?

A single currency credit card is recommended.

At the end of last year (four months ago), I traveled to Korea for five days and four nights. I have a dual-currency single-currency credit card, and I always use a single currency, because if I settle the account with dual currency, I have to convert it into US dollars first, then convert it into US dollars according to Korean won, and I have to repay it in US dollars, which is too wasteful to bear multiple exchange rates.

Single currency credit card settlement is converted into RMB at that time, and direct repayment is converted into RMB at that time.

So, I suggest you make a single currency. If you go to America, you will feel very free.

By the way, shopping in Korean duty-free shops is not much cheaper, but much more expensive than in Europe. If you plan to travel to Europe in the near future, it is recommended not to buy too many things in Korea. But be sure to buy more cosmetics, it's really cheap there! Besides, it's good to take more home to send friends.

Even if you swipe your card, remember to change more won cash and carry it with you.

I hope my answer is helpful to you. Remember to adopt it.