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The iPhone 16 Pro and iPhone 18 Pro are most easily told apart by their overall size. They match almost exactly in height, at 149.6 mm. They match almost exactly in width, at 71.5 mm. On thickness, the iPhone 18 Pro measures 8.8 mm against the iPhone 16 Pro's 8.3 mm — about 0.5 mm more.
The iPhone 18 Pro is the heavier of the two at 211 g, compared with 199 g for the iPhone 16 Pro. That is a 12 g difference (6%). The gap is small enough that you would barely notice it day to day.
Fits comfortably in most front pockets.
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 16 Pro | iPhone 18 Pro | Diff |
|---|---|---|---|
| Width | 71.5 mm | 71.9 mm | -0.4 mm |
| Height | 149.6 mm | 150.0 mm | -0.4 mm |
| Depth | 8.3 mm | 8.8 mm | -0.5 mm |
| Weight | 199 g | 211 g | -12 g |