A:AnswerThis case is specifically for the iPad Mini 6, earlier versions have curved side edges and the new Mini has straight edges. So no this case will not fit the previous iPad mini versions.
A:AnswerHi,
The 8.3" is referring to the screen size, which is measured diagonally, the length by width size is the 5"x7" so it will work for your iPad.
Hope this helps!
Support Team - SaharaCase