SGS4 camera samples appear on Google+, confirm 1/3″ 13MP sensor

I accidentally came across a couple of images that were supposedly taken earlier today using Samsung’s next flagship phone – the Galaxy S4. EXIF data mentions model as GT-I9500 which possibly corresponds to SGS4.

Both images are in 16:9 format and have a resolution of 4128 x 2322 that is roughly 9.6MP.  However a 13MP sensor will also take pictures in similar resolution in Auto mode because the viewfinder can only utilize full screen in 16:9…