A debit card is linked to your checking account and allows you to make purchases or withdraw cash directly from your account.

The card's rewards structure isn't the easiest to remember. But its useful bonus categories, flexible rewards and outstanding welcome offer make it a top contender among cash-back cards.

The combined 2% rewards rate — 1% when you make a purchase and 1% when you pay it off — is among the best on any cash-back card, especially for an annual fee of $0. Many or all of the products ...