iPhone mini is almost exactly the same size in the hand (2.5" width) as the iPhone4/5 and smaller than 6/7/8/SE (2.7" width) , but the screen coverage/diag is significantly larger than the SE (85%/5.4" vs 60%/4.7").
I think he meant diag screen size? The 11/12/13 are 6.1" while maxs are 6.7"