Two months ago, I finally put a case on my iPhone 4s, because it eliminates several issues for me: grip, handling, reduced tendency to go on vibrate mode, drop protection.
After using the case for over two months, I am fully persuaded as to its merits: especially when cycling the improved grip is terrific. And dropping the phone is no longer an “oh sh*t” moment: the phone bounces once or twice, and then I pick it up without concern. And the vibrate function has not self-activated that I can remember. All in all, these things add up to a very worthwhile addition.
Read about my usage of the NewerTech NuGuard KX case for iPhone 4 or iPhone 5.
Click for larger image of all color choices.