I have a phone with size similar to XR (Huawei Mate 10 Pro - 4mm taller, 2mm narrower), and an iPhone 6s (non plus), and from sheer comfort point of view, I like handling the 6s better. It's what a phone should be sized.
Years ago, everything above 5" was considered a phablet. What the heck happened??
Media consumption, and more and more people only owning and using phones instead of tablets and computers.
For me, I hate it, but my XR size is where I ‘need’ to be, I still have my 6S and it’s such an amazing size, but these days I prefer my XR keyboard (most of my comments on this site are from my XR), and it has zoomed screen mode.
The XS would have been possibly my choice by it lacks zoomed screen mode.
So although a bit of a pain size wise, it’s not annoying enough to not enjoy the fact I can stick to just one device where ever I go.
My plan still is to upgrade to the XR next year so long as it has an OLED as heavily rumoured and no bigger then the current model.
Oh and so long as it gets a Qualcomm modem... really not impressed with the Intel in my XR.