Consumer Report, a non-profit organization popularly known for testing products, says that Samsung’s Galaxy S7 Active that has been hyped as "water resistant" is not actually water resistant

In carrying out the test, two Galaxy S7 Active phones were placed in a tank of water, implying that the phones were about 5ft in water. After an hour, the first phone stopped working, the phone screen became non responsive and began to show green lines on the display. Its two camera lenses were also filled with water and bubbles.

In defense, Samsung said it was possible that its devices were "not as watertight" as they should have properly been.

Source: http://www.techkibay.com/2016/07/samsung-galaxy-s7-active-not-water-resistant.html