Are the iPhone 7 and 8 the Same Size?
Although the iPhone 7 and iPhone 8 are extremely similar in size the iPhone 8 is just slightly larger. The Dimensions are as follows:
iPhone 8 - 138.4 x 67.3 x 7.3 mm (5.45 x 2.65 x 0.29 in) (HxWxD) and 148g (5.22 oz)
iPhone 7 - 138.3 x 67.1 x 7.1 mm (5.44 x 2.64 x 0.28 in) (HxWxD) and 138g (4.87 oz)
The glass back on the iPhone 8 contributes to the heavier weight but also supports wireless charging and has a sleek look.