Quick comment about sizes and popularity. This is the size of the iPhone 6/6S/7/8 form factor. There are a LOT of iPhone models of this type. They're bigger than the old SE, but effectively a fair bit smaller than the X/XS/11 Pro format, which has a much larger screen to manage. So, this phone gives those of us who liked the 8 body size an upgrade path. David Smith compiled iPhone usage stats for his app. The iPhone…
I guess you are really comparing screen sizes ? The physical size of the 8 and this new SE is pretty much the same as the X/11 Pro (it's only smaller 5~6mm in height, 4mm in width, 0.4~8 mm in depth). If you were holding up on your 8 because of that, I'd say you can fork the 1000+ bucks for the X or 11 Pro, it will be an upgrade in every dimension except Touch ID disappearing.
It’s also a lot heavier.