Question: is 12 megapixel camera good?
Answer: “If you have higher megapixels, that's more advantageous for printing, or for large displays. ... 12MP might sound like a small number, but a good 12MP image is enough to print an A4 image at 300ppi. It's doubtful that many smartphone users would print photographs even at that size, so 12MP is 'good enough' for most.