New iPad mini shrinks just enough to complicate case compatibility

Apple's new iPad mini has slimmed down with a thinner, narrower design, but those minor changes could make your perfectly good old case a lousy fit. iPad mini 7 The OLED upgrade increases the display size from 8.3 inches to 8.5 inches while keeping roughly the same footprint. However, Apple's published measurements reveal several physical differences that could affect case compatibility.