I think android and iphone cell phones take great closeup photos. They just do not have enough detail for anything past 20 feet where you start seeing the pixels. Most photos are within that range so I figure that is why the lens and the sensor chip have not gotten any bigger except for a few models.
Sensor size
http://mobileandphone.com/wp-content/uploads/2013/07/dslr-sensor-size-comparison-vs-lumia-1020.jpg
Why an iPhone will never replace my DSLR
http://www.businessinsider.com/why-an-iphone-will-never-replace-my-dslr-2015-3
Photos taken by iPhone - Could be any camera with small chip. Most good but look at the bigger photos and note the blurriness.
http://tinyurl.com/jl6rfgf
What I like about my LG3 is the camera takes great photos with no fuss where my bigger camera I have to fuss with the settings.
My GH4 does very nice photos, even in the idiot modes. I mainly bought it for 4K video.
There are several Professional photographers who have done work forNational Geographic who did that work using OLDER model iPhones that would completely disagree with you, Minnesota. Again, the number of megapixels has only importance when one is going to do a large print of the photo, a blow up. At most uses, They are fine.
iPhones have been used to make full length feature films which are blown up to 60 feet wide and look great. . . without pixelation which you claim make the unsuitable for anything beyond 20 feet.