Defender cases are for those who work in really harsh environments and want the best protection for their expensive smartphone. All ports are left exposed so that the case does not comes in the way while the device is being used by user. Heck, they made a small circle at the back to show off that nice Apple logo.
Now, let us talk about protection. It is made of snap together case made of plastic and rubber. The rubber part also covers the home button, unlike its iPhone 4s version that left the home button exposed. It is priced at 50 dollars ($15 more than Otterbox Commuter case). Go for it, if you do not mind the extra bulk.
Otterbox Commuter iPhone 5 review