It actually led me to a follow-up purchase for the 5711, after finding out the very limitation of the 5205g. But no regrets as I now have two watches for different occasions. Love them both!
Between the blue or white, I'd go for the blue. It is just what Nautilus is, and when you look at the porthole to see the water it is blue. Although if you look upward, it is white. As the Nautilus model, I find the 5711 to be simpler to maintain... As one rightly mentioned here, there is no need to change moon phases as can be the case for the 5712 and the 5726.
Regardless though, hope to see you Nauti pics soon!