I went back and forth between both numerous times. Now that I’ve settled on one, I still go back and forth in my mind. Lol The 12 Pro is the ideal size IMO. Fits in the hand nicely. I can almost reach every corner without having to adjust the device at all. I also prefer the 2.0 over the 2.5 telephoto. Sometimes I’ve had to back up a little when doing certain portrait shots with the Max.
That said, I think I’m going to stick with my Max. It’s big and it’s heavy, but it’s not drastically bigger or heavier than the 12 Pro. The battery life and the screen real estate are what pushed me over the edge. I like to game and read on my phone regularly. And the battery is up to a few hours (depending on usage) longer than the 12 Pro. If I could’ve gotten the 12 Pro with similar battery life, I’d be all over it.