Vlad Savov at Engadget:
The Galaxy S II’s screen is nothing short of spectacular. Blacks are impenetrable, colors pop out at you, and viewing angles are supreme.
The Samsung Galaxy S II sports a 4.3-inch Super AMOLED Plus display. OLED displays will generally exhibit deeper blacks than almost any other display technology. I’m not a fan of colors that pop since that could simply mean overblown colors, but in the case of the Galaxy S II a most-welcome development is a setting called Background Effect, which allows you to control saturation levels.
We’d even go so far as to say it’s better than the iPhone 4’s screen, purely because, at 4.3 inches, it gives us so much more room to work with.
The 4.3-inch Super AMOLED Plus display is better than the 3.5-inch IPS Retina Display, because it’s bigger? Sounds weak. The 4.3-inch Super AMOLED Plus has a pixel format of 800×480, which translates into less room in terms of pixels than the 960×640 found on the 3.5-inch IPS Retina Display. And this is a true apples-to-apples comparison because the Super AMOLED Plus display goes back to a typical RGB stripe sub-pixel structure, which I explain in detail in Samsung Super AMOLED Plus: Dumps PenTile Matrix, Goes Real-Stripe (RGB).
The resolution on the 4.3-inch Super AMOLED Plus display is 217 ppi. I’m merely speculating but someone with a 20/20 vision looking at the Samsung Galaxy S II at a distance of around 12 inches will be able to see the individual pixels. There is a bit of a difference in the way a pixel looks on an OLED display compared to a pixel on a LCD. An OLED phosphor burns, unlike a pixel on a LCD, so it will be more difficult to see individual OLED pixels than on a LCD. So the difference in the overall visual experience of using the Super AMOLED Plus compared to the higher-resolution Retina Display might be less than the difference the numbers indicate.