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iPhone 18 Pro & Pro Max Size and Dimensions, Compared
Jul
iPhone 18 Pro & Pro Max Size and Dimensions, Compared
Expected iPhone 18 Pro and Pro Max dimensions vs iPhone 17 Pro, based on leaks. Screen sizes, thickness and what the size change means for case fit.
Coming soonBased on current leaks, the iPhone 18 Pro is expected to measure around around 6.3 inches and the iPhone 18 Pro Max around around 6.9 inches on the diagonal, roughly matching the iPhone 17 Pro pair. The big change is a camera lenses that stand noticeably higher above the plateau than on the iPhone 17 Pro, and the plateau itself is reported to be around 2mm thicker than before (rumored), which may slightly nudge overall dimensions and, more importantly, case fit. Everything here is rumored, not confirmed by Apple. Last updated 13 July 2026.
How big is the iPhone 18 Pro and Pro Max expected to be?
Early leaks point to the iPhone 18 Pro landing around around 6.3 inches and the iPhone 18 Pro Max around around 6.9 inches on the diagonal, which lines up closely with the current iPhone 17 Pro pair. So if you are comfortable holding a 17 Pro or 17 Pro Max today, the 18 should feel familiar in hand.
Please treat every number here as expected, not confirmed. Apple has not published official dimensions, and leaked measurements can shift right up until launch (an Apple launch event is expected on September 9, 2026 (a Wednesday), based on the iOS 27 beta release cadence per Forbes / David Phelan, with September 8 cited earlier by Bloomberg’s Mark Gurman (rumored, not confirmed by Apple)). We will update this guide the moment real specs land.
| Spec | iPhone 18 Pro (rumored) | iPhone 18 Pro Max (rumored) | iPhone 17 Pro | iPhone 17 Pro Max |
|---|---|---|---|---|
| Screen size | Around 6.3 in (rumored) | Around 6.9 in (rumored) | 6.3 in | 6.9 in |
| Height | Expected close to 17 Pro (rumored) | Expected close to 17 Pro Max (rumored) | Similar class (~150 mm) | Similar class (~163 mm) |
| Width | Expected close to 17 Pro (rumored) | Expected close to 17 Pro Max (rumored) | Similar class (~72 mm) | Similar class (~78 mm) |
| Thickness | Similar, exact mm not leaked (rumored) | Similar, exact mm not leaked (rumored) | Roughly 8 to 8.75 mm class | Roughly 8 to 8.75 mm class |
| Camera area | Redesigned, slightly larger plateau (rumored) | Redesigned, slightly larger plateau (rumored) | Existing 17 Pro plateau | Existing 17 Pro Max plateau |
| Case fit note | New case shape advised (rumored) | New case shape advised (rumored) | 17 Pro cases fit 17 Pro | 17 Pro Max cases fit 17 Pro Max |
iPhone 18 Pro vs 17 Pro dimensions, side by side
Here is how the expected iPhone 18 Pro and Pro Max stack up against the iPhone 17 Pro and Pro Max. Where a precise millimetre figure is not yet leaked, we describe the direction of change instead of inventing a number.
The headline difference is not overall size, it is the camera lenses that stand noticeably higher above the plateau than on the iPhone 17 Pro, and the plateau itself is reported to be around 2mm thicker than before (rumored). That reshaped camera area is the part most likely to affect whether an old case still fits.
What the size change means for your case fit
Height, width and thickness look set to stay close to the iPhone 17 Pro generation, so the body outline should feel similar. The catch is the camera area. Because of the camera lenses that stand noticeably higher above the plateau than on the iPhone 17 Pro, and the plateau itself is reported to be around 2mm thicker than before (rumored), most iPhone 17 cases are not expected to fit the iPhone 18 Pro cleanly, because the camera lenses sit higher and each case is tooled to an exact model, so the camera lip and cutouts may not line up (rumored, to be confirmed at launch).
In plain terms: even if the phone slots into an old case, the camera cutout may not line up, leaving lenses exposed or blocked. If you want proper protection from day one, plan on a case built for the iPhone 18 Pro shape. We break the details down in our iPhone 17 to 18 case fit guide.
Which size should you buy, Pro or Pro Max?
If you like one-handed use and a lighter phone in the pocket, the smaller iPhone 18 Pro at around around 6.3 inches is the friendlier pick. If you want the largest screen for videos, gaming and reading, the iPhone 18 Pro Max at around around 6.9 inches gives you more room, with a bit more weight to match.
Whichever you choose, we have a case ready. Browse the iPhone 18 Pro cases or the iPhone 18 Pro Max cases, including our ProGuard impact-protection range.
- iPhone 18 Pro (around around 6.3 inches): easier one-handed use, lighter, pocket-friendly
- iPhone 18 Pro Max (around around 6.9 inches): biggest screen, best for media and gaming
- Both share the same expected camera lenses that stand noticeably higher above the plateau than on the iPhone 17 Pro, and the plateau itself is reported to be around 2mm thicker than before (rumored), so both need a case shaped for the iPhone 18
GALADO cases for the iPhone 18, ready on launch
Our GALADO cases are cut to the real iPhone 18 Pro and Pro Max layout, so lenses, buttons and MagSafe line up cleanly. Every order ships free from Penang, comes with our warranty and easy returns, and you are backed by our 4.9-star rating from over 13,600 shoppers.
Not sure which style suits you? The ProGuard cases give you serious drop protection, while our clear and slim options keep things light. Compare them in our ProGuard vs clear vs slim guide.
iPhone 18 cases are coming to GALADO.
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Questions, answered
How big is the iPhone 18 Pro screen?
Leaks suggest the iPhone 18 Pro screen sits at around around 6.3 inches, about the same as the iPhone 17 Pro. Nothing is official until Apple confirms it (an Apple launch event is expected on September 9, 2026 (a Wednesday), based on the iOS 27 beta release cadence per Forbes / David Phelan, with September 8 cited earlier by Bloomberg’s Mark Gurman (rumored, not confirmed by Apple)), so treat the number as expected, not final. We will update this page once real specs are announced. Last updated 13 July 2026.
How big is the iPhone 18 Pro Max?
Current leaks point to the iPhone 18 Pro Max landing around around 6.9 inches on the diagonal, matching the iPhone 17 Pro Max. That makes it the largest iPhone screen this generation. This is rumored and not confirmed by Apple yet, so please read it as an early estimate, not a promise.
Is the iPhone 18 bigger than the iPhone 17?
Not really, based on leaks. The iPhone 18 Pro and Pro Max are expected to keep sizes very close to the 17 Pro pair, around around 6.3 inches and around 6.9 inches. The main change is a camera lenses that stand noticeably higher above the plateau than on the iPhone 17 Pro, and the plateau itself is reported to be around 2mm thicker than before (rumored), not a bigger body. All of this is rumored until Apple makes it official.
Will my iPhone 17 Pro case fit the iPhone 18 Pro?
Probably not, based on current leaks. Even though the body size looks similar, most iPhone 17 cases are not expected to fit the iPhone 18 Pro cleanly, because the camera lenses sit higher and each case is tooled to an exact model, so the camera lip and cutouts may not line up (rumored, to be confirmed at launch). The reshaped camera cutout may not line up, leaving lenses exposed. Safest to get a case made for the iPhone 18 shape. See our fit guide.
How thick is the iPhone 18 Pro?
Exact thickness has not leaked cleanly yet, but early reports suggest it stays in the same class as the iPhone 17 Pro, so no dramatic change in pocket feel. We are holding off on a millimetre figure until it is confirmed. Everything here is rumored as of 13 July 2026.
When can I buy the iPhone 18 Pro in Malaysia?
Rumors point to the iPhone 18 Pro, Pro Max and foldable launching expected around September 2026 for the iPhone 18 Pro, iPhone 18 Pro Max and the foldable iPhone, based on current supply-chain reports and not yet confirmed by Apple, with pre-orders pre-orders are expected to open around September 11, with on-sale around September 18, 2026 (rumored, not confirmed by Apple). For Malaysia, expect Malaysia is usually an early Apple launch market, so local availability is expected within days to a few weeks of the global on-sale (rumored). The base iPhone 18 is rumored for the standard iPhone 18 and iPhone 18e are reported to arrive later, around the first half of 2027. All dates are unconfirmed until Apple announces them.
Details about the iPhone 18 here are based on current leaks and reports and have not been confirmed by Apple. We update this guide as official information lands. Last updated 13 July 2026.
