I'd be more concerned with "sunlight visibility" than megapixels. Second concern for me is if I can see the screen with my polarized sunglasses. Go to a boat show or a marine store with your shades on. That'll give you an idea if you're going to be able to even see the screen. Then worry about the megapixels. I know several people that can't see their screens when the sun's out. Me, that's when I do most of my boating-hence my choice for the Furuno 7000 with the latest anti-glare screen technology. I have the Raymarine fishfinder, I can see it clearly in the direct sunlight, with and without the shades. However, I see my reflection in it almost like a mirror sometimes whereas on the Furuno I do not...
