The one thing your phone camera actually needs isn't more megapixels

Before I was able to turn writing into a full-time career, I used to work as a part-time professional photographer. I was hardly Richard Avedon, but I knew my way around studio lighting and a DSLR, and that was enough to get some work. I started with a Nikon D70, eventually upgrading to a D300.

Source : https://www.pocket-lint.com/optical-zoom-over-200-megapixel-cameras/