Just because file sizes are larger, doesn't mean the photos are of a higher quality or clearer. There are a lot of variables in photography, and also just between "cameras". When it comes to lenses, depth of field, etc there are even more variables.
FWIW, phones, etc are not meant to be quality cameras. What comes out of them is meant to be lower resolution/quality but sufficient for "screen use" or for sending to other devices.