Now, there are many waterproof cases purchasable as of late and several other do an o.k. job, but these are three of the smartest iPhone 4 cases I've discovered that offer the smartest protection and stand up the longest without leaks and other problems.
The three I'd like to tell you about are the Overboard Waterproof Case for iPhones, the Aqua Box Smartphone Case, and though a more universal case, the Otterbox Waterproof Universal case. All three have great protection, are submersible and can stand up to many trips to the water.
The Overboard Waterproof Case for iPhones is a tight performer. It is waterproof to around 19 feet, while still allowing you to listen to music, watch videos and interact with the screen as you would with any functional case.
The Aqua Box Waterproof Smartphone case offers great protection and is a personal favourite. It also is a functional case, allowing you to easily use your iPhone while encased and is the most form-fitted of the three. It is completely waterproof up to six meters (about 19 feet) and comes in several general colors. The only concern for some might just be that while it says it is universal for smartphones, it in reality fits best on iPhone 3, iPhone 3GS, iPhone 4 and iTouch, as some HTC and Samsung owners have complained their telephones do not fit.
One look at the Otterbox Waterproof Universal case would make you think you could perhaps drag it behind your car as well (I dont recommend this). It obviously offers great water protection for your iPhone, you can feel free to take it into the water with you if need be, but it is more for actual storage and not functional use. Keeping that in mind, it is advertised as crush-proof and watertight to around 100 feet, making it one of the smartest iPhone 4 cases around for serious waterplay. It also comes in a few general colors. Also, as a true universal case, the interior dimensions are a bit larger than the iPhone, but is can also be used for many other telephones, GPS units, your wallet, etc. It in reality is a tight waterproof case if you do not need to be just limited to your iPhone.
So, if you have been hesitant about heading to the beach with your iPhone this Summer, hopefully I have given you three of the smartest iPhone 4 cases out there to come to a decision on from. Now the only thing you must worry about it getting a nice tan!