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it home reported on august 28 that david pierce, a reporter from the verge, and the ifixit team worked together to conduct an in-depth study of a sonic water-dispelling method, which claims to be able to use sound to shake water out of the iphone's speakers by playing a specific video.

to verify the effectiveness of this method, ifixit soaked an iphone 13 in water containing uv dye, then played one of the sonic water-repelling videos and left it overnight to dry. the test results showed that playing the video can indeed drain water from the iphone's speakers, and this method also works on smartphones of other brands.

however, ifixit found that this method only removes moisture from the speaker area. when they opened the submerged iphone 13, they found that the uv dye had penetrated into other internal areas, indicating that the water was not completely drained from the phone. the oscillating sound in the video is able to push water out of the speaker grille, but it is not a perfect solution for a fully submerged device.

according to it home, the apple watch has a similar sonic water-repellent feature built into it, but it works better than on the iphone due to its smaller size and simpler structure. apple's modern iphones have an ip68 water and dust resistance rating and can be submerged in 6 meters of water for 30 minutes without damage. however, the iphone's water resistance will gradually deteriorate over time, and apple does not guarantee water damage, so it is best to avoid exposing the device to water.