Credit cards cannot be used as debit cards.

The main function of a savings card is savings. Depositing your own money into the card is safe and convenient, and you can also earn a certain amount of interest income. When you need money, you can withdraw cash or transfer it. Therefore, a savings card is actually a management account for one's own funds, a card that can be used to withdraw one's own funds.

Credit cards, on the other hand, are issued a certain amount by the bank based on the user's personal credit situation. Users can first use this part of the bank's advance limit for various purchases, and then repay the card regularly.

Because credit card funds are actually small loans issued by banks, unlike personal savings, transferring cash after withdrawing cash from a credit card will generally charge a certain fee and interest, and is accompanied by certain restrictions.