Here is an example of what that looks like: https://imgur.com/Q4J5BHi
In case it isn't obvious due to the zoom and lack of context:
- The texture on the top and windshield don't exist, it's plain gray.
- The letters on the card actually read something, here it's gibberish. Sometimes half a letter, sometimes a texture that doesn't exist.
In particular, manual focus with the actual focus scale (no tap around on some surrogate object) and in-focus indicator, control to set a lower ISO in scenes where the phone wants to pull a faster image, or set a higher shutter speed even on darker situations.
Or on the pro line you get the option to stop automatic lens switching, which gives a lot more control (stay on the best lens/sensor and adjust for it yourself, instead of the phone trying to be clever)
All in all it stops being a point and shoot, and there will be a more missed pictures because of wrong settings, but the highs are also a lot higher in my experience. And it can go back to the "all auto" mode anytime.