iPhone 17 Pro Max vs iPhone 18 Pro Max

163.4 mm163.4 mm78.0 mm78.0 mm

iPhone 17 Pro Max: 163.4 × 78 × 8.75 mm · 233 g
iPhone 18 Pro Max: 163.4 × 78 × 8.75 mm · 249 g

Source: Apple technical specifications for iPhone 17 Pro Max and iPhone 18 Pro Max. Body dimensions exclude the camera bump; foldable phones are shown folded.