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So long, small phones
(www.theverge.com)
This is a most excellent place for technology news and articles.
My phone is about 15cm (~5¾ in) tall, and to me, that's the absolute maximum. It's slightly too big. The width, about 7cm (~2¾ in) is totally fine.
This (Galaxy XCover 5) was the smallest phone that seemed to exist (and I wanted one woth durability, removable battery, SD slot, headphones etc). It was very expensive though.
Trying to find cheaper ones for various people in the extended family, they all specified "oh, not bigger than my current one", but it was impossible. There's basically nothing less than 16cm tall, and most are even bigger.
I'm scared of this one breaking. The XCover 6 is 17cm x 8cm.
Galaxy S23 is 14.6×7.1cm, so almost the same.
That looks perfect - until I saw it's £850! My current phone was about £250, which was more expensive than I wanted - but the only one that was small enough and had the dust/water/drop-off-a-ladder resistance.
Still, those S23s may be cheap in a few years when they're "old" :)