iPad Air 13" (M3) vs iPad Pro 11" (M4): Size & Dimensions

The iPad Air 13" (M3) and iPad Pro 11" (M4) are most easily told apart by their overall size. On height, the iPad Air 13" (M3) measures 280.6 mm against the iPad Pro 11" (M4)'s 249.7 mm — about 30.9 mm more. On width, the iPad Air 13" (M3) measures 214.9 mm against the iPad Pro 11" (M4)'s 177.5 mm — about 37.4 mm more. On thickness, the iPad Air 13" (M3) measures 6.1 mm against the iPad Pro 11" (M4)'s 5.3 mm — about 0.8 mm more.

The iPad Air 13" (M3) is the heavier of the two at 460 g, compared with 444 g for the iPad Pro 11" (M4). That is a 16 g difference (4%). The gap is small enough that you would barely notice it day to day.