Many iPhone cases start with the same concepts: simpler, thinner, and lighter are better. Of course the fact is that there is a negative correlation between those qualities and just how protective the case is. iPhones break in the right — or wrong — circumstances, even if encased. OtterBox was one of the first companies to take the opposite approach of over engineering for enhanced protection. Their iPhone 4 model in the Defender Series ($50) is the latest offering. Griffin has recently stepped up the plate as well, offering Survivor ($50) as a direct competitor. The two are undeniably protective, as both companies demonstrate with videos on their respective websites. Practicality in everyday use may be questionable, but for those who are involved in high impact activities — or are just really clumsy — both provide a good way to keep the iPhone 4 safe and avoid a trip to the Genius Bar.
Both offerings have a similar multi-layer construction: a polycarbonate shell with built in passthrough screen protector and a thick silicone skin that fits over it, with a removable belt clip for each. The first layer is rather similar on both, with a two piece snap-shut design.
On the inside of each back piece is a thin padding to cushion the iPhone 4, and each has extruded portions which serve to hold the silicone layer in place. Between the two, the biggest difference is that OtterBox’s case has a circular opening around the Apple logo, covered by a clear plastic window. We are not big fans of this design decision from an aesthetic stand, although it does not considerably lessen the protectiveness of this case.
Where the two cases differ most is the outer silicone shell. Of the two, Survivor feels more substantial and more rugged. It covers every bit of the phone; all of the switches, openings, and even the camera are protected but can be accessed by flipping out the portion of silicone over them, and the volume, Sleep/Wake, and Home Buttons are covered but remain fully usable. For the most part, this is a thoughtful design as there is practically no way any harmful elements could reach the iPhone. In practice, however, it does make using certain features of the device more difficult. For example the extra step of exposing the camera is added to the photo taking process, which is something that could result in lost shots. The noise canceling mic on the top of the phone is also covered during normal use which could certainly lead to degraded call quality.
In addition, docking is not possible due to the overall size of the case.
Defender, on the other hand, seems a little bit less protective. The silicone is thinner at points, although it still feels strong. While most of the iPhone 4 is covered, there are significant exceptions. On the bottom, both the speaker and the mic are fully exposed, as is the mic on the top. Even though they are recessed rather deeply, the camera and flash are also open. Similar to the Survivor, the headphone port, silent switch, and Dock Connector are accessible by flipping out the portion of rubber covering them.
Included with both cases is a belt clip. With Survivor, it is situated on a long piece of plastic that fits into the shape of the silicone body, attaching at the top and bottom. It can be rotated in 90 degrees in either direction. On Defender, the clip is on a much larger attachment; it is a a little bit wider than the unit itself, almost serving as a case for the case.