A tough decision now between Tough and UAG cases. Per my review of UAG case I just posted, you can see that I'm equally excited about both lol!!! But for sure, those two are in a different category.
Tough is overall slimmer, more rounded, and a little bit lighter. UAG has a little better protection, especially corners, with a thicker bumper/lip. Tough offers a more sophisticated cleaner design, while UAG is more urban style. Both styles are bold and stand out. Overall, quality of Case-Mate is ahead of UAG - you can see that in fitment and other details. UAG is ahead of Tough in terms of better drop protection.
At this point, I'm using BOTH - Tough for the times I'm inside with less exposure to outdoor elements, and UAG for those times when I'm more outdoors.
Here is a few shots comparing one next to the other just to give you a scale/dimension comparison.