Call it a fluke, or call it Samsung's mistake. Consumer Reports is an American magazine and media outlet supported by its own subscribers to perform rigorous testing of all kinds of consumer products from cameras to cars. The Galaxy S7 active (as well as the other S7 models) is rated for up to 5 feet deep of water for up to 30 minutes. Consumer reports simulated this test with the Galaxy S7 and S7 edge, but also did the same test for the Galaxy S7 active. Consumer Reports uses a tank of water which is placed under 2.12 PSI (about 14.6 kPa) for 30 minutes to test Samsung's claim. There...
Source: http://www.gsmarena.com/samsung_galaxy_s7_active_didnt_pass_consumer_reports_water_test_twice-news-19295.php