NEW YORK (AP) — Samsung’s new Galaxy S5 smartphone is more durable than last year’s model and other leading Android phones, but the iPhone 5s outperformed all of them in part because of its smaller size, a new study finds.

The S5 scored well given its water resistance and a sturdy back panel made of plastic, according to SquareTrade, a provider of extended protection plans. The iPhone 5s won points for being just 4 inches diagonally, compared with about 5 inches for the Android phones. That makes the iPhone easier to grip and thus less likely to slip out of one’s hands.