Apple builds the iPhone 18 Pro Max around a 6.9-inch OLED panel at 2868 by 1320 pixels, 460 pixels per inch, inside a 249 gram aluminum body that measures 163.4 by 78.0 by 8.75 mm. Those are the figures Apple’s own tech specs attach to this phone, not a ratio measured against any other model.
Treated as its own product rather than the larger option next to the iPhone 18 Pro, the Pro Max carries a specific set of published numbers for its screen, its weight and its frame, and a shorter list of numbers Apple has chosen not to publish at all.
Key facts
| Item | What Apple publishes |
|---|---|
| Display | 6.9-inch OLED, Super Retina XDR |
| Resolution | 2868 x 1320 pixels |
| Pixel density | 460 ppi |
| Refresh | ProMotion up to 120Hz, Always-On |
| Brightness | 1000 nits typical, 1600 nits peak HDR, 3000 nits peak outdoor |
| Weight | 249 g (8.78 oz) |
| Dimensions | 163.4 x 78.0 x 8.75 mm (6.43 x 3.07 x 0.34 in) |
| Frame and glass | Aluminum unibody, Ceramic Shield 2 front, Ceramic Shield back |
| Water resistance | IP68, 6 meters for up to 30 minutes |
| Colors | Black, Silver, Glacier, Burgundy |
The panel, in Apple’s own numbers
Apple describes the display as Super Retina XDR with ProMotion up to 120Hz and an Always-On mode, the same vocabulary it uses across the current iPhone lineup. What is specific to this model is the 2868 by 1320 resolution, a figure that belongs to the Pro Max and to no other iPhone Apple sells.
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The Dynamic Island sitting inside that panel is smaller than last year’s and, per Apple’s own description, shows up to three Live Activities at once, with Face ID retained underneath it. Apple has not published separate dimensions for the redesigned cutout itself, only the claim about how many activities it can hold.
The body it sits in
At 249 g, the Pro Max is the heaviest iPhone Apple currently sells that does not fold. Apple’s tech specs describe the enclosure as an aluminum unibody with Ceramic Shield 2 on the front glass and Ceramic Shield on the back, and put recycled aluminum content in that enclosure at 85 percent.
IP68 water resistance is rated to 6 meters for up to 30 minutes, and the phone ships in the same four finishes Apple lists for the smaller Pro: Black, Silver, Glacier and Burgundy. Nothing about color changes the weight or dimension figures above.
What belongs to this size, and what does not
Pixel density, refresh rate, the three brightness figures, Ceramic Shield 2 and the IP68 rating are constants Apple publishes across both of this year’s Pro sizes. The numbers that change specifically with the Pro Max are the ones tied to its physical footprint: the 6.9-inch panel, the 2868 by 1320 resolution, the 249 g weight and the 163.4 by 78.0 mm dimensions.
The pixel count, worked out
Apple does not publish a total pixel count or a screen area in square millimeters for either iPhone size, so the figure below is simple multiplication on Apple’s own published resolution, not a second Apple source.
| Figure | Value | Source |
|---|---|---|
| Resolution | 2868 x 1320 px | Apple tech specs |
| Total pixels | about 3.79 million | Calculated from the resolution |
| Pixel density | 460 ppi | Apple tech specs |
| Screen area | Not published | — |
What Apple has not said
- A screen area in square millimeters, or a total pixel count, for either iPhone size.
- A contrast ratio for the Pro Max panel.
- Dimensions for the redesigned Dynamic Island itself, beyond the three-Live-Activity claim.
- Whether a nano-texture, anti-reflective glass option will reach an iPhone; Apple currently offers that finish only on the iPhone Duo’s inner display.
- A weight or dimension figure that differs by color, which Apple does not vary.
The iPhone 18 Pro Max reaches stores on Friday, September 18, in more than 65 countries, five weeks ahead of the iPhone Duo, the only current Apple phone with a larger screen than this one. Our Pro against Pro Max comparison and camera breakdown cover what else Apple published on September 9.