Bigger is better on the screen size. IMO a 7" screen would be at the absolute lower end. All the data in the world doesn't do you a bit of good if you can't see it.I have a 999 and an 1199 and I can see those just fine. I have a buddy with a 899 and I struggle to read it.
2015 Seaark 1872 MV CC Etec-90
Helix 12 CHIRP SI, HB 1199, MinnKota Riptide ST80/i-pilot Link, Bob's Hydraulic
Bitter Gun Owner