Sony sold 4.2 million PlayStation 4 units in 2013 

It was not long ago when Sony last updated us on the sales numbers of its PlayStation 4 gaming console. However now that Microsoft announced that it has sold more than 3 million Xbox One units in 2013, the Japanese were eager to show that they have topped that number.

Sony’s PlayStation 4 sales stood at 2.1 million on December 1 and about 30 days, there were as many more PS4 consoles at the users end. The Japanese manufacturer will certainly be looking to build on its sales momentum to take the upper hand in its rivalry against the Xbox One.