iPhone 4 Commuter Case (Zircon Blue/White). With all of the features the iPhone 4 has to offer, you definitely want to protect it. The OtterBox Commuter series case for iPhone 4 is what you need. With three layers of protection, worrying about scratches, bumps and shocks will be completely unnecessary. Nothing beats OtterBox cases when it comes to quality and toughness. Commuter series has three slender, yet sturdy layers offer tough protection in a sleek package. With a slim form factor and smooth outer layer, this iPhone 4 case slides easily in and out of a pocket, purse or bag.