Millimeter is a unit of length, not contained in an instrument !
If you think to dimensions these are: 123,8 x 58,6 x 7,6 mm.
The iPhone 5 and 5s is 58.6 mm (2.31 in) wide. The iPhone 5c is 59.2 mm (2.33 in) wide.
The iPhone 5 has a 3.5 mm headphone jack. The iPhone 5s and 5c have 3.5 mm headphone jacks too.
No, The case won't fit. The iPhone 4 screen is 88.9 mm (3.5 in) while the iPhone 5 is 101.6 mm (4 in).
It is 3.5 inches from one corner of the screen to the opposite corner of the screen.
Cases can be slim or thick. An iPhone 5 is 123.8 mm (4.87 in), 58.6 mm (2.31 in) and 7.6 (0.30 in) thick.
No, the skins won't fit. The iPhone 5 is 123.8 mm (4.87 in) high, 58.6 mm (2.31 in) wide and 7.6 mm (0.30 in) high. The iPhone 5c is 124.4 mm (4.90 in) high, 59.2 mm (2.33 in) wide and 8.97 mm (0.35 in) thick.
The iPhone 5 is 123.8 mm (4,87 in) high, 58.6 mm (2.31 in) wide and 7.6 mm (0.30 in) thick. The screen is 101.6 mm (4 in) across the diagonal
123.8 millimetres by 57.6 mm by 7.6 mm. It weighs 112 grams.
The headphones will fit. Both phones have 3.5 mm headphone jacks. Almost every pair of head phones is 3.5 mm.
The iPhone 5, 5s and 5c all have the same size screen. The screen is 4 inches across the diagonal.
5 mm x 5 mm = 25 mm2
5 of course