iPhone 5 display sensitivity?

I thought I remembered reading about it already but couldn't find anything. The outer edges of my screen (maybe 2-4 mm of the display) has no sensitivity, more on the sides than the top and bottom. Only about 1/4 of my 123 button works, and only the right side of my Q and capital button. None of my previous iPhones were like this, but this is my second iPhone 5 with this issue. I'm considering waiting a couple months and then exchanging it for one with all the issues worked out, but how many other people have this problem?

 

The space bar is a PITA, I often combine words accidentally, but my fingers are adjusting quickly.