@Mrgs1 I'm not suggesting any smart phone will can or will compete with a Nikon D850 with 500mm f/4 or replace any high end digital camera be it a M4/3, APS-C, 35mm or medium format. I'm certain I won't be replacing my digital cameras with my smart phone. That's not my stance.
Consider the advances in digital photography itself over the last 3 or 4 years. Nikon, Canon, etc. have smelled the flowers and realized that a flip up mirror on a DSLR really isn't necessary anymore. Mirrorless is the way forward for most. Look at the new features that have been added over the last 3-4 years as well. Focus bracketing used to be a pain to do in many situations. Now I just select the option in the menu and away it goes.
My iPhone from 4 years ago can't hold a candle to my newer iPhone XR or the even newer iPhone 11 Pro. These amazing smart phones produce amazing imager
y because of
computational photography. I'm suggesting that over the next few years that
computational photography and videography will be the
norm for small sensor drones and that they will then provide more options and better imagery than we have today.
I don't know anyone who wants to see if they can go aloft with a drone and a Nikon D850 with a 500mm f/4.