I agree about that, the Unihertz Jelly phones are the only modern phones I can think of that I would classify as small, 5.3 inches certainly isn't that.
On the other hand, not sure how the Enough phone will fare here, but from one problem with Unihertz is a lack of software updates. From what I hear, they don't even provide regular security updates, and they're still selling the Jelly 2 which is stuck at Android 11.