The Samsung Galaxy S II 4G's 4.3-inch (800x480) AMOLED display isn't as sharp as screens found on many competing models. Even so, with stunningly high contrast and vibrant colors, it can still hold its own.
Running a 1.2GHz Exynos dual-core CPU, the Samsung Galaxy S II 4G is still nimble enough to flip through menus and launch apps quickly. It can also drive fancy live wallpapers smoothly such as this one with animated weather and windmills.
The Samsung Galaxy SII 4G comes with Samsung's standard virtual keyboard installed. It's a basic typing surface but is well spaced and comfortable to use. It also features the Swype keyboard for faster texts.