I have only been using it for a few hours but the battery life is much better! I played Pokémon go for hours and it only drained 20%!
I got the iPhone 11 Pro ( because it was the smallest and I have small hands). I haven’t tested out much of the phone besides PoGo and Voltra.
It is much more enjoyable to use Voltra on my new iPhone. I know this one is 2 years newer but it really is so much faster! It’s a joy to use Voltra on it!