Its been just 18 days Microsoft released its next generation console, The Xbox One and it made it to the 1 million sales in just 24 hours. Sony sold 1 million PlayStation 4 units in 24 hours as well. Now Microsoft announced that it has already sold 2 million Xbox One units till now. According to Microsoft spokesman David Dennis Xbox One is selling much faster than the previous generation Xbox 360. and Xbox One is currently available in only 13 countries. Sony sold 2 million units in 15 days time windows so Microsoft is a bit slower in sales than the Sony’s gaming machine but as already mentioned it is still selling much faster than Xbox 360. Moreover Xbox One is $100 expensive than PlayStation 4 as it costs $499 and PlayStation 4 costs $399. Reuters cites Colin Sebastian, an analyst at Colin Sebastian, says that both Xbox One and PlayStation 4 will sell 2.5 million to 3 million units by the end of 2013.