The difference between the 16-digit and 19-digit bank cards is the number of digits in the card number, the meaning of the card number, the different functions, and the different card issuers.

1. The number of card numbers is different: the card number of a 16-digit bank card is 16 digits, while the card number of a 19-digit bank card is 19 digits.

2. The meanings are different: 16-digit bank cards are mainly debit cards, while 19-digit bank cards include debit cards and credit cards.

3. Different functions: 16-digit debit cards are mainly used for basic financial functions such as savings, transfers, and payments, while 19-digit credit cards have functions such as overdraft consumption, installment payments, and cash withdrawals.

4. Different card issuers: 16-digit debit cards are mainly issued by major banks themselves, while 19-digit credit cards are jointly issued by banks and credit card companies.

5. A bank card is a payment tool used to store funds and conduct financial transactions. It is issued by a bank and has a magnetic stripe or chip. It can be used to deposit, withdraw, transfer, and pay for consumption. wait.