It does not need to be covered. It depends on how you take care if it.
I don't use a case. Fact is, you gotta be careful with anything nowadays.
What i have to be more careful of is womens jeans, or cargo yoga pants, have shallow pockets, so I have to be more careful the phone doesnt pop out the top of the pocket & fall while walking !!
mind showing us a demonstration of how your phone might pop out of your pants?
You know, as good looking as the 4s is, too bad this thing can't be left without a case or screen protector. I've had it covered in an otterbox and screen cover since day one. I was staring at it one day and decided to take the cover off and let the retina screen shine and after about two days there was a small nick on it. Kinda weak for the simple fact that every ad i see this device its naked, but that's a lie you really cant have this phone naked, it has to be covered.
i have been putting my iPhone(s) in my pocket for a long time. never had an issue with keys or anything. i designate a pocket for my phone ONLY
Name one phone commercial where the device advertised was in a phone case...