I go my phone on thursday the 8th and I'm currently I'm getting about 3-4h of SOT.
I would say I'm a pretty heavy user, a lot of Podcasts, Spotify and Youtube (I've installed the Vanced version of Youtube).
I'm also not running the phone on 2k but 1080p settings. I have yet to enable batterysaving mode but I might try having it on medium where it limits CPU power to 70% and decreases background tasks.
Over night when its not plugged in i'm loosing about 1.4% per hour, during the day when I'm using it about 10-11% per hour.
Not really that impressed by it to be honest.
Although I'm coming from a Mi MAX that was designed for batterylife and that I modded to be as efficent as possible.
The phone is not rooted but I've just installed SABS, BK Disabler so I'll be disabling some bloat (I don't use SHealth, GearVR etc) and I'll see if it Improves when the phone stablizes over the coming days.
---------- Post added at 07:22 AM ---------- Previous post was at 07:14 AM ----------
I'm getting about 3-4h of SOT with an unrooted Galaxy S9+. No power saving modes enabled and a lot of use such as Podcasts, Youtube, Spotify and such.