Looks like the same size as mine. Well yeah but it has never bothered me one bit, I actually had to check after you said that as it never occurred to me (and it's only black bars, no picture missing). I still prefer it when using the phone most of the time in portrait mode.
I prefer portrait to landscape when reading, which is most of my phone usage, and having a 'tall' screen means more words to read before having to scroll. I have a Galaxy S9+, which has a great screen size, I'd say.