iPhone 16 Pro Max vs iPhone 17 Pro Max: size comparison
iPhone 17 Pro Max is 0.4 mm taller and 0.4 mm wider than iPhone 16 Pro Max. iPhone 16 Pro Max would fit inside the outline of iPhone 17 Pro Max.
iPhone 16 Pro Max measures 163.0 x 77.6 x 8.25 mm (height x width x thickness), while iPhone 17 Pro Max measures 163.4 x 78.0 x 8.75 mm.
Both phones are drawn to the same scale on a grid where each square is 10 mm. Blue is iPhone 16 Pro Max, coral is iPhone 17 Pro Max.
| iPhone 16 Pro Max | iPhone 17 Pro Max | Difference | |
|---|---|---|---|
| Height | 163.0 mm | 163.4 mm | +0.4 mm |
| Width | 77.6 mm | 78.0 mm | +0.4 mm |
| Thickness | 8.25 mm | 8.75 mm | +0.5 mm |
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What the size difference means in daily use
One-handed use
The two phones are almost exactly as wide (77.6 mm and 78.0 mm), so reaching across the screen with one hand should feel much the same on both. Phones around 77 mm wide or more are usually the ones people describe as large.
Pockets and bags
The heights are within a millimetre of each other, so neither phone sits noticeably deeper in a pocket. iPhone 17 Pro Max is slightly thicker, by 0.5 mm, which you may feel in a slim pocket.
Cases and screen protectors
The outside sizes are almost identical, but cases also depend on camera cut-outs, button positions and port locations, so check the exact model before buying accessories made for the other phone.
Frequently asked questions
Is iPhone 17 Pro Max bigger than iPhone 16 Pro Max?
iPhone 17 Pro Max is 0.4 mm taller and 0.4 mm wider than iPhone 16 Pro Max. iPhone 16 Pro Max would fit inside the outline of iPhone 17 Pro Max. Thickness differs by 0.5 mm.
Will a case for iPhone 16 Pro Max fit iPhone 17 Pro Max?
The outside sizes are almost identical, but cases also depend on camera cut-outs, button positions and port locations, so check the exact model before buying accessories made for the other phone.
Which is easier to hold with one hand, iPhone 16 Pro Max or iPhone 17 Pro Max?
The two phones are almost exactly as wide (77.6 mm and 78.0 mm), so reaching across the screen with one hand should feel much the same on both. Phones around 77 mm wide or more are usually the ones people describe as large.
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.