I have the S9+ and it's the only camera I use, I sold my D90 a few years back and since then I haven't had an urge to replace it.
I don't really read on it, when my kindle broke I stopped reading as much because my phone is too small, now I've got an iPad I use that to read again
I ALWAYS brows the internet on my phone though, I only put my laptop on to scrap a few times a week, the rest of my browsing is via my phone.