Difference in maps? GARMIN says the Fenix 7x pro has maps downloaded and epix pro gen 2 does not. What does this mean in usage? Any other differences not generally shown or known? When using the maps is the fenix better due to the screen staying on vs the epix always turning off while trying to figure out what you want to do? How well can the epic pro be seen in bright sunlight? are there other models that I should look at? Thank you.