What size sensor does the AZ652 have?

The AZ652 has a 20MP (Megapixel) sensor which is the equivalent of 20 million pixels in one photo. 
You can choose the image size (quality) in your AZ652 settings menu depending on the quality of photo or size you want if you are going to print.
For the best photo resolution, always choose the maximum 20MP for the highest quality printing.