It appears that I can download all of Oregon, Washington. most of California and Idaho and Nevada at low res
Then specific areas at max res
Gaia will automatically use the highest resolution available for any particular spot
It takes several hours to download each
My Garmin 60CSx downloaded all of Oregon/Washington/some adjacent areas at max resolution all at one time. Took several hours and a couple GB. Smartphone uses a couple GB to do that at low res. Garmin must be vector, more efficient, smartphone must be bitmapped, but you can zoom out so it must be more complicated than that.
I assume someone will tell me an easier way, what an idiot I am. And quit spamming with stupid smartphone questions : )