I have to say I was really happy and impressed with this case. I have a samsung s7 edge and Iphone 6 plus. Did try with both of them and it all works well. Placed a case under the water with my phone inside and when I took it out my phone was dry. I also did a test to put it under the sand in the garden and I would say this case can be used not only for water activities as it also come with 2 removable straps. 1 would go around your waist and the other one I would assume around your waist.