I do find that the Galaxy screen is a little better than the screen on the Nikon for drilling down into a an image when in the field.
Another method I've used is the have my Eye-Fi card send shots to my Galaxy. I'll snap a shot, and a moment later a .jpg pops up on my phones screen wirelessly. I like this method for confirming focus and etc.
There is talk out there about the Eye-Fi not being compatible with the D800, but I've used it enough to know it works when you have your phone or PC in close proximity ( your pocket for example).