What is the credit card of China Construction Bank for? Can I save money in it? What's the difference with a savings card? What is the overdraft limit? What are the advantages and disadvantages? Specifically, You can save money, but debit cards are different in two ways:

1.

There is no interest on deposits, that is, credit card overpayment, which means that if you deposit tens of millions, after decades, it will still not exceed tens of millions;

2.

Withdrawal means that you have to charge a certain percentage of handling fees to withdraw the credit card overpayment, which means that you have saved tens of millions, and then take them out decades later, which may be thousands or even tens of thousands less.

To sum up, credit card deposits are not worth the loss!

However, when many banks handle credit cards, they will attach a bound debit card, which will automatically be transferred from the debit card to the credit card for repayment at maturity, which is convenient and has interest. Why not?