The new iPhone 13 duo is official, with a familiar design, but several important upgrades. The overall shape of the iPhone 13 and 13 mini hasn't changed much - flat edges and rounder corners are married once more in an IP68-rated metal body. This time around, the distinctive notch has gotten smaller by 20%. The diagonals of the Super Retina XDR panels remain unchanged - 5.4 inches for the iPhone 13 mini and 6.1 inches for the iPhone 13. The panels themselves are 28% brighter, reaching up to 800 nits of max outdoor brightness and a whopping 1200 nits of peak HDR brightness. Speaking...
Source: https://www.gsmarena.com/apple_13_and_13_mini_official__smaller_notch_a15_bionic_and_new_cameras_with_sensor_shift-news-50935.php