Comment by GuB-42

There is a market, it is just not lucrative enough for big players to take it.

There is however a company that caters to these niches: Unihertz

The have small phones, massive phones with huge batteries, rugged phones, phones with keyboards,...

From what I have seen, not great on the software side though, and they have entry-level specs, with prices to match. It is a Chinese company.