Last I knew according to GSMarena. IPhone 13 mini was 5.4inches had a 2438mah battery, did not have a telephoto camera, did not support sdcard slot, IR remote, 66w fast charging.
This is smaller has a larger battery and has more features. So..
I don't think there's a single correct size for a phone. Different people want different things; many want huge phones with screens over 7" while some of us think the Pixel 4a is too big.
My phone got an update on July 18. LineageOS is great.
There was some sort of problem which caused the touch sensors to just go haywire. It was years ago now. The phone didn't last terribly long for me.
It started bugging out in, initially, unpredictable ways. It would open and close apps almost at random, as well as interact with them, but only while or right after you were touching the screen. Sometimes it would freeze. Of course I restored the thing to factory settings, but it didn't make a difference. It was unusable.