iPhone 8 isn't the correct size.

I have an iPhone 8. It is supposed to have the same dimensions as an iPhone 6 . However, when I received my 8, it is MUCH smaller than my 6 . However, when I check the serial and IMEI number, it shows up as an iPhone 8!!!

"Both the iPhone 6S and the iPhone 8 have the same size of bezels around the display and same overall shape, and their screens are the same size and same resolution."

Here are the dimensions of an iPhone 8:

H: 138.4 mm (5.45 in) W: 67.3 mm (2.65 in) D: 7.3 mm (0.29 in) 8 Plus: H: 158.4 mm (6.24 in) W: 78.1 mm

(3.07 in) D: 7.5 mm (0.30 in)

For an iPhone 6s:

6S: 138.3 mm (5.44 in) H 67.1 mm (2.64 in) W 7.1 mm (0.28 in) D 6S Plus: 158.2 mm (6.23 in) H 77.9 mm (3.07 in) W 7.3 mm (0.29 in) D

Can ANYONE make sense of this?