All my Lowrance units are very visible in direct sunlight.
Here is my BIG GRIPE however (not to go on a tangent . . ):
When i fish till dark, I turn the console graph brightness down so that Im not blinded on the run home. I like being able to see where Im going in the dark.
Now the next day, back in the bright sunlight . . now the screen is so dark that I cant see anything . . including the "adjust brightness" icon!!
Takes me 30 minutes to try and get the brightness level back up.
I used to have the same problem when I ran lowrance, but if I remember correctly just short press the power button a couple times to adjust the brightness back to where you can see it.