Well iPhone 12 pro are going to be significant upgrade from iPhone 11. They will get very powerful A14 bionic chipset based on 5nm architecture. The smooth 120hz is going to make it look faster. The combination of 3 incredible cameras with bigger sensor and LIDAR is going to make camera even better than 11. And according to latest rumors it will use millimeter wave and sub 6 to make 5g even faster. It’s going to have smaller notch and face ID is going to be faster as it gets all new 3D sensor.
So it’s better to wait for iPhone 12 pros.