Will an iPhone 16 Pro Max case fit a 17 Pro Max?
The 17 Pro Max is a slightly bigger, thicker phone than the 16 Pro Max. Why the cases don’t swap, plus the 15 Pro Max and the 18 Pro Max.
Written by the YOONIG team · Editorially reviewed · Updated · 2 min read
The short answer
No. Apple lists the 17 Pro Max at 163.4 × 78 × 8.75 mm and the 16 Pro Max at 163 × 77.6 × 8.25 mm: 0.4 mm taller, 0.4 mm wider and 0.5 mm thicker.
A 16 Pro Max case is too tight for a 17 Pro Max, and a 17 Pro Max case is loose on a 16 Pro Max. Both have USB-C, an Action button and Camera Control, but each case is cut to its own outline.
Side by side
Official dimensions from the manufacturer. Dimensions alone don’t decide fit: camera position, button placement and cut-outs matter just as much.
Sources: iPhone 16 Pro Max specs, iPhone 17 Pro Max specs.
| Spec | iPhone 16 Pro Max | iPhone 17 Pro Max |
|---|---|---|
| Height | 163 mm | 163.4 mm |
| Width | 77.6 mm | 78 mm |
| Depth | 8.25 mm | 8.75 mm |
| Screen | 6.9-inch | 6.9-inch |
| Charging port | USB-C | USB-C |
| Side buttons | Action button, Camera Control | Action button, Camera Control |
| MagSafe | Yes | Yes |
What actually changes between them
These are the differences a case has to follow. Any one of them is enough to stop a case sitting flat, covering a button or lining up with the camera.
- The iPhone 17 Pro Max is 0.4 mm taller than the iPhone 16 Pro Max
- The iPhone 17 Pro Max is 0.4 mm wider than the iPhone 16 Pro Max
- The iPhone 17 Pro Max is 0.5 mm thicker than the iPhone 16 Pro Max
iPhone 15 Pro Max and 16 Pro Max
A bigger jump: the 16 Pro Max is 163 mm tall against 159.9 mm for the 15 Pro Max, with a 6.9-inch screen instead of 6.7-inch, and it adds Camera Control. Cases don’t swap.
| Spec | iPhone 15 Pro Max | iPhone 16 Pro Max |
|---|---|---|
| Height | 159.9 mm | 163 mm |
| Width | 76.7 mm | 77.6 mm |
| Depth | 8.25 mm | 8.25 mm |
| Screen | 6.7-inch | 6.9-inch |
| Charging port | USB-C | USB-C |
| Side buttons | Action button | Action button, Camera Control |
| MagSafe | Yes | Yes |
And the iPhone 18 Pro Max?
Apple lists the 18 Pro Max with the same dimensions as the 17 Pro Max (163.4 × 78 × 8.75 mm), so a 16 Pro Max case doesn’t fit it either. For 17 Pro Max and 18 Pro Max cases, see will a 17 Pro Max case fit an 18 Pro Max.
Why “almost fits” isn’t good enough
A case that nearly fits can press a side button all the time, leave a gap at one corner where the phone can pop out when dropped, or sit on the camera rim so the lenses touch the table. A raised edge around the camera only protects if it surrounds the lenses exactly.
Every YOONIG case is cut for one model, so the print, the openings and the raised edges line up with that phone. If you are not sure which model you have, our guide to finding your exact model takes a minute.
Find the right case
Shop cases made for each phone: iPhone 16 Pro Max cases, iPhone 17 Pro Max cases.
Frequently asked questions
Are the iPhone 16 Pro Max and 17 Pro Max the same size?
No. The 16 Pro Max is 163 × 77.6 × 8.25 mm; the 17 Pro Max is 163.4 × 78 × 8.75 mm.
Will a 17 Pro Max case fit a 16 Pro Max?
No. It’s made for a slightly larger, thicker phone, so it’s loose and the openings don’t line up.
Will a 15 Pro Max case fit a 16 Pro Max?
No. The 16 Pro Max is taller (163 mm) and has Camera Control.
Do the 16 Pro Max and 17 Pro Max have the same screen size?
Yes, both are 6.9-inch, but the phones themselves differ in all three dimensions.
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