5.5-inches for the Galaxy S7 Edge and 5.1-inches for its predecessor
I have S7 Edge (Onyx Black) 100% Waterproof *Did a video test underwater for like 2-3 hours* the sounds/speaker might be weird cuz there is still water inside but after awhile when the water is gone it will be back to normal.
What kind of phone you want ? Good Camera? Waterproof?