New York, March 1

You can dunk Samsung’s new smartphones in water, but don’t drop them on a sidewalk, a new study finds.

SquareTrade, a company that offers extended-protection plans for gadgets, said the Galaxy S7 and S7 Edge still functioned after being submerged in water for 30 minutes. Audio was ‘permanently muffled and distorted’ after the dunking, but the Samsung phones still outlasted Apple’s iPhones in SquareTrade’s water tests.

The study, released today, also found that Samsung’s new phones are more prone to breaking than iPhone 6S, which survived 30 seconds in a tumbling test chamber, similar to a dryer without heat. The test is meant to mimic repeated drops phones often face. Both Samsung models had minor cracks on the screens and significant damage to their backs. The iPhone 6S Plus, a larger version of 6S, did worse. Its screen completely shattered in the tests.

The screens of all four phones cracked when dropped face down on a sidewalk. The Samsung phones also cracked when dropped on their corners, while the iPhones had only cosmetic damage, according to SquareTrade.

A spokeswoman at Samsung Electronics in Seoul did not immediately respond to a request for comment on the study.