It has become clear that I am not using my phone as much as I used to, and it never had much traffic to begin with.
Opting to give up the half decent phone, the one on the right, in favour of a slim basic device on the left.
However, for the odd times when a phone is relevant I brought back the old Nokia 1600 (it's the one one the left) : basic phone; default calendar year is 2005; trimed the size of it by removing some of the shell (some cutting was involved). It will live in the bag, not in any of my pockets, and mostly set to off mode. The alarm feature is the most useful thing about it - good for Monday 6AM wake up.
The Nokia 6300 (the one on the right will go to a good home).