My Droid Turbo didn't lose much battery capacity, but it was four years old, and everyday apps barely functioned, and random things killed the battery in the background.

I went for the Pixel 2XL, for the battery and for the software updates. Can plug in my phone for an hour here and there at random times, and no longer leave it plugged in at night. I can go out or visit family with battery at 50% and not worry about my phone dying.

Google's fast charging also seems to be more variable and "smart" than motorola's, and doesn't seem to overheat my phone as much