I do not have an S9 but I had an S8. Then I have a Sony XZ2 and now a P20 Pro. This is generally what I observe:
Out of camera (OOC JPEG), the Samsung tends to have better quality at pixel level (pixel peeping). However, it falls behind in dynamic range and also night mode.
On pixel level, the P20 Pro's OOC JPEG is quite disappointing to be honest. The denoising is too strong. But this is not an issue for social media uploads. The P20 Pro's higher dynamic range and Leica colour profile (doesn't mean it's accurate BTW) are still more desirable. If you want to pixel peep, you can go for RAW 40MP setting and edit from there. The output can trounce every phone camera out there. Another thing is the monochrome sensor which is very useful to create emotion out of street photography.

Can't wait for the latest EMUI 9 on P20 Pro after watching YouTube review

here you go

https://www.youtube.com/watch?v=Fc1tAsH-aSU

Finally!

Oh yeah.. Seems like Christmas is early this year

There is even a Performance Mode.

I spoke too soon.

It looks like the RAM management issue still persists. After more than 24 hours without shutting down the phone is not as smooth as before and keeps killing off apps like Google Chrome. Even I cleared the apps, it would say only ~1GB left. Normally it has 3GB left.

How about this? How much is acceptable

Any p20pro user non beta receive update already?

P20pro non beta is here ..jz got it
https://pictr.com/image/0flzl6

just upgraded...wow..like smoother now. fast also.

i wonder why we need to perform the update via hiCare instead of from settings>system update.

sigh-ed i try to avoid using it. some apps from hicare has been making calls without my notice.

Not sure if it's related, but I got the same problem as u after upgrade to EMUI 9 from 8, and my FB apps also giving weird problems (play / pause button didn't show up randomly, tried clear cache, uninstall and install fresh copy). Not to say also, 10GB of storage gone after installed EMUI 9 via OTA.

So I give my phone a full reset today, and surprisingly all problems mentioned above seems gone after that. I just full drained the batt, now charging it up for a full reset and I'm gonna see how it gonna behave few days later.

just turn it on. the clock display is at the top part.. yours is bottom is it very near bottom ?

Anyone having trouble viewing YouTube app

Can i check with you guys, for emui 9. How to change lock screen wallpaper? Anyone can help?