iPhone Air vs iPhone 18 Pro

156.2 mm150.0 mm74.7 mm71.9 mm

iPhone Air: 156.2 × 74.7 × 5.64 mm · 165 g
iPhone 18 Pro: 150 × 71.9 × 8.75 mm · 211 g

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