The main difference between a passport card and a passport book is that a passport card does not grant the same travel mobility as a passport book. “The card is for U.S. citizens who travel by ...

While a passport book costs $165 for adults and $135 for kids under 16, a card comes to $65 for adults and $50 for kids under 16. Renewal for a book is $130, but is only $30 for a card.

Should you get a passport book or a passport card? It all depends on where you want to go and how you prefer to get there—by air, land, or sea.

If you're wondering what a passport card is, know that it can't replace your regular passport book. But there are plenty of good reasons to get one.

“The card is not valid for international travel by air and is cheaper than the passport book.” A passport card is more portable (it fits in most wallets) and more affordable (fees are $65 for ...