Before U.S. release, over 5 million Samsung Galaxy S2 phones have been sold.

Samsung Electronics has announced that the company sold more than 5 million units of its Galaxy S2 smartphone, according to Yonhap News Agency.

While we have to sheepishly admit that a disproportionate number of us at TNW are iPhone-toters, this particular phone is very well known around here.

The S2 has been on the market in South Korea since the end of April, and in Japan and parts of Europe in May.

The smartphone with a massive 4.3″ screen is the sequel to the very popular Samsung Galaxy S, and runs Google’s Android mobile operating system.

The device reached the milestone just before its August debut in the United States and is performing quite well when viewed against Apple and Samsung total smartphone sales for the second quarter of this year — Apple moved 20.34 million units and Samsung moved 19.5 million.

It’ll be interesting to see how the United States launch improves those numbers.