I do not store movies or many pictures, am tennis pro , need for filming lessons then download or get to client...will not keep old ones very long. suggestions appreciated... also mini4 vs air2? Thanks. ko
Under the circumstance you mentioned, the 64 GB model should be more than sufficient. Having said that, you need to decide if the Mini or the Air 2 is the right size for you.
Welcome to iMore! Like @Just_Me_D said, you need to decide which size is the right size for you. I recommend going to an Apple Store and experiencing both devices first hand. Go with your gut!
I use a 64 GB iPad Air and it is quite a bit of space. I have all of my music and tons of games, still space. Storage on iOS mainly gets eaten up if you store a lot of videos locally. Apps don't take much space.