2. Display Now I do not see how this is even a possible comparison, put an N9 next to an S2 and the display is so obviously superior in the S2. But let's not go for user perception, I will outline the facts once again. SGS2 Super AMOLED Plus display, known to be the best display at its time of release, surpassed only by the Super AMOLED Plus HD display. N9, even though launched many months after the S2, comes with an outdated OLED display. The display in the S2 is again far far superior technology. Now granted the N9 has a higher PPI (251) vs the S2 (218), but that is not because it has a better display, the display technology used in the S2 is much more superior to that of the N9, but being a bigger display (4.3) vs the N9 (3.9) it has a lower PPI as pixels are spread over a larger screen size. I have yet to see where this makes a significant difference, but yes the N9 does have better PPI, not a better display.