They aren't accurate, either; the SGS is shown as relatively larger than it actually is (not much, but when making comparisons like this, percentage points matt

They aren't accurate, either; the SGS is shown as relatively larger than it actually is (not much, but when making comparisons like this, percentage points matter), and the SGS's "thumb circle" is smaller! I guess the moral of the story is that if you have 2-inch range of motion with your thumb, you shouldn't get anything larger than an iPhone and probably can't draw consistent diagrams.