The NEX 5n, like all NEX cameras has a 3" wide screen. While generally an excellent screen, it can be argued that it really isn't 3" as there is a strip down the side for picture and photographic information when using the standard 3:2 format. As a picture screen it really isn't 3", it is about 2.6-2.7". Interestingly enough the Fuji X100's 2.8" screen is taller than the Sony's screen, and more detail from the picture is visible.
|Sony NEX 3 with Leica 50mm Summicron|