I don't know the difference. In terms of normal consumption, the credit cards of the two banks are the same. Where you can swipe your ICBC credit card, you can swipe your postal credit card.

To say the difference, it may be that the billing date and repayment date of the two sheets are different. The whole series of credit card bills of postal service are basically fixed on a certain day, so is the credit card bill of ICBC. The accounting dates of the two are not necessarily the same.

Different services, different integration algorithms. Post has some credit card services, but ICBC may not. Some activities of ICBC credit card, postal credit card is also not available. Then each bank calculates credit card points in a different way.