Personally, I wouldn’t go below a 9”. When using the mega 360 your looking for detail and the smaller the screen, the smaller the detail. Even using a 10” screen, I am using the front view setting as it increases the size of the view of the 360 and gives me a increase of detail. Granted you can enlarge And expand the screen also to 4X But it blurs detail the more it’s expanded and enlarged. As always said, bigger is better.