I just got my first extra mini cch this season too, and I am surprised how much I love it. The small is my favorite size, but my SA could only find the extra mini, so I said yes, but thought I might end up returning it. But luckily, I had switched over to the iPhone SE last year, and it easily fits in the extra mini cch.
a smaller phone is SO much better for me. At home I use my iPad, which is sync with my phone, so there is no worry about viewing things on a small screen. And when I am out, handling a smaller phone is just so much easier. And I definitely admit that my move to a smaller phone was in great part influenced by my love of mini bags.
And the added bonus is that the iPhone SE was less than half the price of the larger phones. So I was able to get a Chanel phone case for it, and the price came out to about the same for both the phone and the case as it would have for just the larger model phone.
I realize that some people need the upgraded features of the larger phones. But I would 100% recommend any mini bag lover to take a look at the smaller phones on the market.