I say this case is the best for these reasons design, cost, and protection. First design, the main thing that stands out about this case it has hard edges when on case feels slick and firm. The whole case has a sparkle effect pretty cool. I absolutely love the white but the black is very nice also my gf loves it. The only flaw in design is probably the power and volume buttons are cut out and case does have a little thickness so can be hard to push buttons sometimes. This case does add to size but keeps nexus 4 shape exactly.
Cost was 5.21 plus 2 dollar shipping so that for me already puts it as number 1 since all others cost more. To me if you had to pick one case this would be it.
Protection to me cannot get any better than this. I don't know how but the case in your hand feels soft and bends like every other case but when on feels solid. Hard to put into words but I trust this case.
Now the only other cases that came close where the distronic (which is a little slimmer and buttons are not cut out. Also back is matte). I blazon was good to very similar to distronic minus the matte back. The mercury is just a tad thicker than these but you really don't feel it.
The other cases like the rearth to me is just a cheap piece of plastic not worth 10 bucks. There is a distronic hard shell that was pretty nice its like the rearth but done right. This would be my second choice if you really want ultra slim. Does not protect whole phone but good enough.
Here are some pics I took today this case is awesome. Comes in a ton of colors.
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