As you'd expect, there are no other differences between the white Galaxy S II LTE and its black incarnation. It's just the color. Thankfully though, the entire device is clad in white, this isn't a case of just the back side getting a new paint job, as you can see.
Samsung says that it expects the white version to be more appealing than the black one to women and youngsters. We don't know if the company is right or not, but more color options for smartphones are always something we like seeing. Especially because black seems to have completely taken over in recent years. But perhaps that trend is bound to change in the future. We'll see.