Like Graco’s SafeSeat, the Chicco KeyFit is a great option for those who want get a longer usage period out of their infant seat. It’s rated for babies from 4 to 30 pounds - though long, lean infants might outgrow the 30-inch height limit before they outweigh the seat. This one’s super-padded, both for crash protection and baby’s comfort, and its ease-of-use ratings are through the roof.