Today's monstrosities are off my list. But a Mini is no longer available on sale, unless I want to pick up a used phone from several years back. So I might as well stay with my 8-year-old 5S and be done with it.
I took off the mag-safe case on my 12 mini after a while yesterday. And it feels even more thinner and lighter.
Actually there isn't a decent Samsung or Motorola smartphone that is small and light.
Have you evaluated the iPhone SE, currently in its third incarnation?