The biggest benefit of having an iPhone 4 case, is to protect the new Retina display screen and overall body of the iPhone. . The iPhone 4 is a quite attractive phone, with a smooth and sleek design, so avoiding scratches and scruff marks is crucial. The Apple iPhone 4 itself is a stylish and sexy phone, but since there are only black & white versions accessible, they all look the same. A cell phone case can be a really eye catching and attractive accessory and can express your individual style and personality.
I do think that the Bumper gives you real protection, not so much because it can withstand a fall onto concrete, but instead because the Bumper reduces the chance that you would drop the iPhone in the first place. The added friction of the rubber portion of the Bumper makes it much less likely for the iPhone 4 to slip out of your hand or out of your pocket. You will get bumpers in different colors, so if you are looking to add a splash of color to the iPhone 4. if you find that you accidentally touch the part of the iPhone antenna that reduces reception, you won't have that problem with the Bumper, you can get that with a Bumper. Even Apple is positioning the Bumper as simply a fashion accessory and you will get combo pack of bumper case with screen protector.