New phone for wife

Hi!

I'm a bit out of the loop when it comes to phones. I want to buy my wife a new phone for Christmas. She currently has a Samsung S22+. I want the new phone to:

-android -not be bigger than the previous one (or slightly bigger, but smaller is fine)

• be good for photography
• have a good battery
• not have a curved screen
• budget up to 2500PLN/600Euros
• used is fine

Can you help?