It’s true that the mini size sold the least. But also there was no small Pro model, carriers barely promoted the mini, and the SE2 of similar size came out just a few month before the mini, and was cheaper. It’s unclear what the result would have been if there had been a mini Pro and if you add the sales numbers of the SE. Furthermore, if all of this hadn’t happened during the pandemic where people visited physical stores less and therefore had less opportunity to experience how the mini feels in the hand.Oops... my bad with regards to the Plus.
But the Pro Max was offered when the iPhone Mini was on sale... as well as the regular-sized iPhones.
Basically there were iPhones available in Small, Medium, and Large when the iPhone Mini was on sale.
And people overwhelmingly chose Medium and Large.
I believe my point still stands. People didn't prefer the Mini to the larger models... I'm sorry to say.