It depends how detailed the picture is
how many pixels are in 700K
it is 150xa50 pixels.
About 500
12 pixels tall 12 pixels wide.
786432 pixels
0.48
4mb photo
0.3 megapixels
10.2mp = 10.2 mega pixels
2.4mp
720 is 0.9 mega pixels.
2 mega-pixels 2 mega-pixels