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The iPhone 18 Pro Max and A4 Paper are most easily told apart by their overall size. On height, the A4 Paper measures 297.0 mm against the iPhone 18 Pro Max's 163.4 mm — about 133.6 mm more. On width, the A4 Paper measures 210.0 mm against the iPhone 18 Pro Max's 78.0 mm — about 132.0 mm more. On thickness, the iPhone 18 Pro Max measures 8.8 mm against the A4 Paper's 0.1 mm — about 8.7 mm more.
Only the iPhone 18 Pro Max lists a weight (249 g), so a direct comparison is not possible.
Fits in most pockets, may feel snug when sitting.
Most of the screen is reachable, shifting grip needed for corners.
| Metric | iPhone 18 Pro Max | A4 Paper | Diff |
|---|---|---|---|
| Width | 78.0 mm | 210.0 mm | -132.0 mm |
| Height | 163.4 mm | 297.0 mm | -133.6 mm |
| Depth | 8.8 mm | 0.1 mm | +8.7 mm |
| Weight | 249 g | N/A | - |