iPhone 16 vs iPhone 17: size comparison
iPhone 17 is 2.0 mm taller and 0.1 mm narrower than iPhone 16.
iPhone 16 measures 147.6 x 71.6 x 7.8 mm (height x width x thickness), while iPhone 17 measures 149.6 x 71.5 x 8.25 mm.
Both phones are drawn to the same scale on a grid where each square is 10 mm. Blue is iPhone 16, coral is iPhone 17.
| iPhone 16 | iPhone 17 | Difference | |
|---|---|---|---|
| Height | 147.6 mm | 149.6 mm | +2.0 mm |
| Width | 71.6 mm | 71.5 mm | -0.1 mm |
| Thickness | 7.8 mm | 8.25 mm | +0.45 mm |
Drag them in the size toolSee them at true size
What the size difference means in daily use
One-handed use
The two phones are almost exactly as wide (71.6 mm and 71.5 mm), so reaching across the screen with one hand should feel much the same on both.
Pockets and bags
iPhone 17 is 2.0 mm taller, which mostly affects how deep it sits in a pocket and how far your thumb must stretch to the top edge. Thickness differs by only 0.45 mm, which is too small to notice in everyday use.
Cases and screen protectors
Because the height or width differs by about a millimetre or more, a case or screen protector made for iPhone 16 is unlikely to fit iPhone 17. Always buy accessories listed for the exact model.
Frequently asked questions
Is iPhone 17 bigger than iPhone 16?
iPhone 17 is 2.0 mm taller and 0.1 mm narrower than iPhone 16. Thickness differs by 0.45 mm.
Will a case for iPhone 16 fit iPhone 17?
Because the height or width differs by about a millimetre or more, a case or screen protector made for iPhone 16 is unlikely to fit iPhone 17. Always buy accessories listed for the exact model.
Which is easier to hold with one hand, iPhone 16 or iPhone 17?
The two phones are almost exactly as wide (71.6 mm and 71.5 mm), so reaching across the screen with one hand should feel much the same on both.
About these numbers
Sizes are height x width x thickness in millimetres, taken from manufacturer and retailer spec pages and phone databases. Thickness can differ slightly by colour or back material, and where sources show a range we use the larger value. If you spot a wrong number, please tell us and we will fix it.