My buddy has [this}(http://www.amazon.com/Merit-Waterproof-Underwater-Shockproof-Protection/dp/B00TDNWZL2/ref=sr_1_8?ie=UTF8&qid=1432932556&sr=8-8&keywords=waterproof+note+4+case) one and he really likes it. No usability problems so far and it works pretty well. He dropped it in an 8ft deep pool for a couple minutes and not a single drop got in even though its only rated for 6.6 deep.