* EDIT - I went back to Garmin store here in Maimi and they replaced the watch and the new one also does the same thing.. so I don't think this was defective and just wanted to be fair and update. Can't be too picky I guess, lol. I feel better now.
I was able to try and get a better photo of this. It's hard with getting the exposure to match that of what you see in real life. In person, it's a bit more obvious (especially in a dark room). It seems that parts of the screen are brighter (or maybe a different color temperature) than others and gives an inconsistent appearance.
In the photo the side where it says steps is brighter vs. the top part of the screen. It's either brighter, or the screen is not producing the same "white" color at the top.
I will be bringing the watch back to the Garmin store for an exchange (maybe I will look at the 965 at the same time and see if I feel anything towards that one). But, I do love the AMOLED since switching from MIP, tho I can see there can be some little issues.