Having seen some comments saying “it might not be too bad, stop jumping to conclusions” etc:
1. Firstly, 2800mAh is substandard. Unless it’s a graphene battery (which it isn’t) this is already a small battery, especially considered 3000mAh batteries are considered to be small.
2. The display looks as if it will be a 5.7 inch FHD OLED one. That’s barely smaller than the battery on the XS and S9, and both of those had mediocre battery lives. Don’t forget, the Pixel 4 has a smaller battery as well.
3. And to top it all off, the display will be 90hz, making it even more power-hungry.
I don’t see how slight battery optimisations on Android 10 and a new 7nm processor can translate all of this to a good battery life. The maths doesn’t add up. I would wait for reviews to make a final decision in terms of buying the P4 or not if I was tempted to get one.
IF (massive IF) Google somehow makes the battery life on the Pixel 4 above average, I will be amazed and eat my words. But for now, things aren’t looking good.