You will never see a iPhone do that.
My XR could do it. There are days where I could get 12 hrs SOT with my XR if I had an irrational addiction to it haha. For example, yesterday I finished the day at 57% with 5hrs, 20mins SOT. All that said though, it’s worthless to compare at this point. As others have said, the S10 family will likely get users through an entire day of use very comfortably, and that’s really all that matters. I like that my battery anxiety is gone with the XR, but I charge nightly and haven’t dropped below 40% in a single day since I’ve owned it. I’m sure the S10 will be the same if not better for everyone. When I had the Note9, the battery was outstanding. I’d expect no less from the S10. Actually I’d expect even better.
Edit: I feel the need to say though, before one of you point it out, I understand you are sacrificing pixel density for the sake of better battery life. Yes, the S10 technically has a much higher quality panel while maintaining stupendous battery life. I’m aware of that sacrifice, but I’m absolutely fine with it.