This is by far the best case to protect your iPhone 4 and 4S from drops and water damage
Mophie’s Juice Pack Pro is designed to protect your beloved iPhone 4 and 4S against damage from water, dirt and drops. The $130 case is easy to put on and remove, and features a large capacity 2500 mAh battery which is good for an extra 150% of battery of life. Yes, the Juice Pack Pro isn’t cheap, but it just might be the ultimate iPhone protector.
[Hat tip to ACQUIRE]