iPhone尺寸和分辨率

iPhone	物理尺寸(对角线)	逻辑分辨率	物理分辨率	缩放因子
4/4s	3.5-inch	320 x 480	960 x 640	2x
5/5s/SE	4-inch	320 x 568	1136 x 640	2x
6/6s/7	4.7-inch	375 x 667	1334 x 750	2x
6p/6sp/7p	5.5-inch	414 x 736	2208 x 1242	3x
x/xs	5.8-inch	375 x 812	1125 x 2436	3x
xr	6.1-inch	414 x 896	1792 × 828	2x
x/xs max	6.5-inch	414 x 896	2688 x 1242	3x

参考: https://blog.csdn.net/Scorpio_27/article/details/52297643