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iPhone 18 Pro & Pro Max Size and Dimensions, Compared
Jul
iPhone 18 Pro & Pro Max Size and Dimensions, Compared
Exact iPhone 18 Pro and Pro Max dimensions vs iPhone 17 Pro: screen size, thickness, camera height, and whether your current case still fits.
In stock nowBased on current leaks, the iPhone 18 Pro is expected to measure around 6.3 inches, with a 150.0 x 71.9 x 8.75mm body confirmed on Apple’s own spec sheet and the iPhone 18 Pro Max around 6.9 inches, with a 163.4 x 78.0 x 8.75mm body confirmed on Apple’s own spec sheet on the diagonal, roughly matching the iPhone 17 Pro pair. The big change is a a 48MP Fusion main camera with a variable aperture that moves between f/1.48 and f/4 on six laser-cut blades, on both the Pro and the Pro Max rather than the Pro Max alone, which may slightly nudge overall dimensions and, more importantly, case fit. Everything here is rumored, not confirmed by Apple. Last updated 10 September 2026.
How big is the iPhone 18 Pro and Pro Max expected to be?
Early leaks point to the iPhone 18 Pro landing around 6.3 inches, with a 150.0 x 71.9 x 8.75mm body confirmed on Apple’s own spec sheet and the iPhone 18 Pro Max around 6.9 inches, with a 163.4 x 78.0 x 8.75mm body confirmed on Apple’s own spec sheet 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.
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Please treat every number here as expected, not confirmed. Apple has not published official dimensions, and leaked measurements can shift right up until launch (Apple has officially confirmed its “Surprise and Shine” launch event for September 9, 2026 (Wednesday) at 10am PT, which is 1am on 10 September Malaysia time, livestreamed at apple.com and via the Apple TV app; new iPhones are widely expected to headline the event, though Apple’s own invite does not name specific products). 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 |
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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 a 48MP Fusion main camera with a variable aperture that moves between f/1.48 and f/4 on six laser-cut blades, on both the Pro and the Pro Max rather than the Pro Max alone. 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 a 48MP Fusion main camera with a variable aperture that moves between f/1.48 and f/4 on six laser-cut blades, on both the Pro and the Pro Max rather than the Pro Max alone, case fit for the iPhone 18 Pro is much clearer now that Apple’s own specs page confirms body dimensions identical to the iPhone 17 Pro (150.0 x 71.9 x 8.75mm) and Pro Max (163.4 x 78.0 x 8.75mm), so most iPhone 17 Pro cases with a broad camera cutout should physically fit; Apple has not officially certified cross-generation compatibility though, so cases with tightly molded camera rings or precision lens cutouts still warrant caution.
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 6.3 inches, with a 150.0 x 71.9 x 8.75mm body confirmed on Apple’s own spec sheet is the friendlier pick. If you want the largest screen for videos, gaming and reading, the iPhone 18 Pro Max at around 6.9 inches, with a 163.4 x 78.0 x 8.75mm body confirmed on Apple’s own spec sheet 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.
If you have already settled on the larger one, our iPhone 18 Pro Max guide goes deeper on that model specifically.
- iPhone 18 Pro (around 6.3 inches, with a 150.0 x 71.9 x 8.75mm body confirmed on Apple’s own spec sheet): easier one-handed use, lighter, pocket-friendly
- iPhone 18 Pro Max (around 6.9 inches, with a 163.4 x 78.0 x 8.75mm body confirmed on Apple’s own spec sheet): biggest screen, best for media and gaming
- Both share the same expected a 48MP Fusion main camera with a variable aperture that moves between f/1.48 and f/4 on six laser-cut blades, on both the Pro and the Pro Max rather than the Pro Max alone, so both need a case shaped for the iPhone 18
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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.
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Questions, answered
How big is the iPhone 18 Pro screen?
Leaks suggest the iPhone 18 Pro screen sits at around 6.3 inches, with a 150.0 x 71.9 x 8.75mm body confirmed on Apple’s own spec sheet, about the same as the iPhone 17 Pro. Nothing is official until Apple confirms it (Apple has officially confirmed its “Surprise and Shine” launch event for September 9, 2026 (Wednesday) at 10am PT, which is 1am on 10 September Malaysia time, livestreamed at apple.com and via the Apple TV app; new iPhones are widely expected to headline the event, though Apple’s own invite does not name specific products), so treat the number as expected, not final. We will update this page once real specs are announced. Last updated 10 September 2026.
How big is the iPhone 18 Pro Max?
Current leaks point to the iPhone 18 Pro Max landing around 6.9 inches, with a 163.4 x 78.0 x 8.75mm body confirmed on Apple’s own spec sheet 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 6.3 inches, with a 150.0 x 71.9 x 8.75mm body confirmed on Apple’s own spec sheet and 6.9 inches, with a 163.4 x 78.0 x 8.75mm body confirmed on Apple’s own spec sheet. The main change is a a 48MP Fusion main camera with a variable aperture that moves between f/1.48 and f/4 on six laser-cut blades, on both the Pro and the Pro Max rather than the Pro Max alone, 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, case fit for the iPhone 18 Pro is much clearer now that Apple’s own specs page confirms body dimensions identical to the iPhone 17 Pro (150.0 x 71.9 x 8.75mm) and Pro Max (163.4 x 78.0 x 8.75mm), so most iPhone 17 Pro cases with a broad camera cutout should physically fit; Apple has not officially certified cross-generation compatibility though, so cases with tightly molded camera rings or precision lens cutouts still warrant caution. 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 10 September 2026.
When can I buy the iPhone 18 Pro in Malaysia?
Rumors point to the iPhone 18 Pro, Pro Max and foldable launching on sale from Friday 18 September 2026, with pre-orders from Saturday 12 September, with pre-orders pre-orders open on Saturday 12 September at 5am Pacific, which is 8pm Malaysian time, and the phones reach stores on Friday 18 September. For Malaysia, expect Malaysia is named in Apple’s first wave of more than 65 countries, so pre-orders open here on 12 September and stock lands in stores on Friday 18 September. 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.
iPhone 18 specifications, pricing and launch date are still unconfirmed by Apple, so treat those as expected rather than final. Our cases are in stock now, cut to the latest available dimensions, with free returns if the final design differs. Last updated 10 September 2026.
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