Stable physical properties. Both iPhone 4 4S Aluminium Metal Bumper Frame Case and iPhone 5 5S Aluminium Metal Bumper Frame Case adopted aluminum as its framework, which is a light, stable element with solid hardness, nothing can be better than aluminum because it will not having any chemical reaction with water, oxygen and heat even for long time. Basically, if adequate protection is guaranteed, you don't have to replace it forever, one stable protective case is more than enough.
Hardness. Although rubber or plastic protective case has enable comfortable holding sense and gripping, however, seemingly it has abandoned the essence of what a protective case should be--fortitude protection. Whereas, iPhone 4 4S Aluminium Metal Bumper Frame Case and iPhone 5 5S Aluminium Metal Bumper Frame Case are completely different. Theoretically, its hardness is a few times stronger than rubber or plastic, adding to special craftwork processing, which has enhanced its hardness substantially. Even suffering stronger impact will your device be safe under most circumstances.
Convenience. Without the redundancy of back coverage, you can enjoy a more touchable operation whenever and wherever possible. In addition, all ports or buttons are exposed and easily to access to without remove the case. In the aspect of convenience, they are more than sufficient.
Frankly speaking, although iPhone 4 4S Aluminium Metal Bumper Frame Case and iPhone 5 5S Aluminium Metal Bumper Frame Case plays less importance on decoration and comfortability, however, sometimes the simplest metal case tend to be the best protector disputably.
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