There are differences between credit cards and quasi-credit cards in terms of deposit interest, interest-free period, amount and relationship, as follows:

1. Usage: There is no interest after credit card deposit, but interest will be calculated according to the deposit rate after quasi-credit card deposit.

2. Interest-free period: Credit cards can enjoy a certain interest-free period after overdraft consumption, while quasi-credit cards have no interest-free period.

3. Credit limit: The credit limit of a credit card needs to be determined according to the comprehensive situation of the user, while the quasi-credit card has a fixed credit limit.

4. Relationship: Credit card and quasi-credit card are an inclusive relationship, and quasi-credit card itself is a type of credit card.