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The iPhone 18 Pro and iPhone 18 Pro Max are most easily told apart by their overall size. On height, the iPhone 18 Pro Max measures 163.4 mm against the iPhone 18 Pro's 150.0 mm — about 13.4 mm more. On width, the iPhone 18 Pro Max measures 78.0 mm against the iPhone 18 Pro's 71.9 mm — about 6.1 mm more. They match almost exactly in thickness, at 8.8 mm.
The iPhone 18 Pro Max is the heavier of the two at 233 g, compared with 211 g for the iPhone 18 Pro. That is a 22 g difference (10%). The gap is small enough that you would barely notice it day to day.
Fits in most pockets, may feel snug when sitting.
Most of the screen is reachable, shifting grip needed for corners.
Fits in most pockets, may feel snug when sitting.
Most of the screen is reachable, shifting grip needed for corners.
| Metric | iPhone 18 Pro | iPhone 18 Pro Max | Diff |
|---|---|---|---|
| Width | 71.9 mm | 78.0 mm | -6.1 mm |
| Height | 150.0 mm | 163.4 mm | -13.4 mm |
| Depth | 8.8 mm | 8.8 mm | 0.0 mm |
| Weight | 211 g | 233 g | -22 g |