The net effect of the generic non-versioned "ipad" naming is to make me feel a bit dumb. I can recite spec changes between Samsung Galaxy models, and keep close

The net effect of the generic non-versioned "ipad" naming is to make me feel a bit dumb. I can recite spec changes between Samsung Galaxy models, and keep close track on aforementioned Dell and Lenovo products, but for the iPads I just draw a blank. I don't know. I bought an iPad (Air?) a few years ago for my son. It may have been in September 2014; it's one of the slim ones (perhaps "2nd generation slim"??), and it looks pretty much the same as the newer ones. I struggle to tell the difference between them; as long as it works I really don't feel an incentive to upgrade it. (Protip: The thick child iPad cases are just about bulletproof).