Stiftung Warentest put smartphones to the test. In addition to the basic functions, camera, screen, handling and battery, the stability of the devices was also evaluated. For this, the smartphones have been subjected to drop tests, scratch tests, bend tests if necessary, as well as rain and immersion tests. The phone is sprayed with one millimeter of water per minute for five minutes. In addition, devices declared waterproof by the manufacturer (IPX7 or higher) are subjected to an immersion test according to the specified degree of protection.
The result shows that the vast majority of smartphones can survive a downpour without any problem. The 21 models in the test all withstood the rain test “good” or “very good”.
In the overall rating, water resistance, combined with a drop and scratch test as a stability index, is only 5%. Basic functions (30%), camera (20%) and display, handling and battery (15% each) are much more important.