-- Display uses pentile display matrix — Battery life is below average — Lacks expandable storage — Camera is below average and only captures 5MP shots (pocketnow.com)
If you are wondering what are the technical differences between the AMOLED and AMOLED Plus; The Super AMOLED (used in the Galaxy S) makes use of PenTile matrix to form an image where as the Super AMOLED Plus display (used in the Galaxy S II) uses the normal RGB matrix, using more subpixels than that on the former. (gadgetian.com)
Samsung uses PenTile technology in virtually all of their Super AMOLED displays, which are used in most of the company's smartphones - including the Galaxy S7 and S7 edge. (oled-info.com)