If you're interested to hear about the results for first day sales for the PlayStation 4 in the United States, you'll be happy to find out that things have been pretty positive for Sony.

President of Sony Worldwide Studios, Shuhei Yoshida, took to twitter to announce that a total of 1 million PlayStation 4's sold on the first day of release in North America alone.

To top that number, Sony plan to sell a total of 5 million units by the end of March 2014, and to be honest at this point in time it's pretty likely Sony will be able to hit this number.

Without taking into consideration any bundles, extra controllers, games or accessories that may have sold, 1 million units sums up to a total of $399m. 5 million units worth would end up being just under two billion at $1.9B.

Sony already announced that a total of 1 million PlayStation 4's had been pre-ordered back at Gamescom in August this year, and with Christmas right around the corner, a big chunk more PlayStation’s will be sold off.

We've yet to see the international release of the PlayStation 4 as well, which will could possibly bring in at least another 1 million launch day sales across the UK and Europe.

It will certainly be interesting to see how these numbers stack up against the Xbox One, and how the launch of each console could potentially affect the sales of the other.