This is a comparative review about three soft silicone black cover cases for iPhone 4/4S. I ordered the following products:
1) Apple Iphone 4g Premium Soft Silicone Rubber Black Phone Protector Skin Cover Case bought for $1.23.
2) INSTEN Black Silicone Skin Case Compatible With Apple® iPhone® 4S (Sprint / AT&T / Verizon) bought for $1.61.
3) Incipio iPhone 4 4S NGP Matte Semi-Rigid Soft Shell Case - Matte Black / Matte Black bought for $9.91.
All of these orders were processed fine and were timely delivered. The following are some comments based on their use and my preferences.
On average, all of them offer a satisfying soft feel in hand during everyday use. The no-name case (1) is made of the most flexible material, followed closely by the Insten case (2). The Incipio NGP case (3) is actually a hardened shell that has the silicone feel and some of its flexibility. It is in the same order that these cases attract progressively less dust on their surfaces. Still, static can be expected to do its work and the Incipio NGP processed surface seems to be doing a more decent job, if dust annoys you terribly.
Also, all of these cases have nearly identically positioned holes for the on/off volume switch, the headphones, the rear camera and the bottom. In particular, the switch hole is correctly positioned to serve the designs of both iPhone models 4 and 4S. The rear camera hole does not obstruct the camera lense or flash in any of the cases. One can tell the Incipio NGP case (3) has had more effort in its design and finish, followed in the next spot by the Insten case (2), whereas the no-name case (1) lags about two or three spots behind in this perspective.
Personally, a good protective fit around the device is my main criterion. Comparatively, the no-name case (1) performs very poorly. Its form allows for a quite loose fit. I think it is a design flaw that its long sides tend to widen away from the device as one moves from the device corners to the middle. Not that the phone will accidentally slip out of the case. However, this case offers no sense of a firm fit. If you take your phone in and out of your pocket, it is likely that you will be happening to strip your phone off of its case in the process.
The Insten case (2) falls in the same, very economical category of cases as the no-name case (1). Yet, its protective fit is far improved compared to the no-name case (1). The fit is decisively firmer. The material exhibits minor widening towards the front middle of the long sides, which I find acceptable given the nature of the soft silicone build material. Also, the Insten case has a front that covers slightly more of the iPhone face. The case lower front part is a little even wider, resulting in a small curve in the middle just at the point where the iPhone button bottom is located. These design details do not interefere with the iPhone screen or functionality at all. One might even think that the extended skin in the front could offer additional protection for the edges of transparent screen film, if one uses any.
Finally, the Incipio NGP case (3) offers a clearly more sophisticated fit, thus engulfing the device very snuggly in its hard-ish coating. One can tell that effort has been put in this design feature, too. The hardened material keeps its sides firmly parallel, so there is no widening or deviation from this shape at all during use or taking the phone in and out of one's pockets. The fit is so firm that you might wonder about fitting your iPhone into the case or stripping it out of it, but eventually it works really well. Like the Insten case (2), the Incipio NGP also has narrow extensions to the front of the case. These extensions are also very well designed to protect the edges of any transparent screen film in use. Alas, they make a slight curb as they start from the side and end on the phone screen. Apparently, this curb could prove useful in absorbing any side-frontal shock. Stylistically, it makes the iPhone-case set slightly thicker than using any other case, if you do not mind an extra milimeter or so in the total thickness.
To sum up, in my opinion the no-name case (1) offers just basic protection, and it would not be my overall choice. The Incipio NGP case (3) has been carefully designed and delivers in terms of a firm, protective fit. Somewhere inbetween and definitely close to the Incipio NGP, the Insten case (2) combines the softness of the no-name silicone material with good protection fit and definitely more decent design than what the no-name offers.
If you prefer the hardened Incipio NGP silicone shell, its skilful design and do not mind the justified premium of about 6 times the price of each of the other two, you could well go for it. Note that its packaging is also nicely taken care of and includes a screen transparent film, too. If you want a more economical solution, then I consider the Insten case (2) to be a superior product compared to the no-name case (1). For about the same price, the Insten case (2) offered me a well-crafted protective case with all the characteristics I asked for and without the flimsy points I observed in the no-name case (1).
Given all the above points in this review:
* I rate the no-name case (1) with 2 stars, the Insten case (2) with 4 stars, and the Incipio NGP case (3) with 4 stars
* According to my personal preferences and opinions I would overall select the Insten case (2) as my favorite among these three products.