In addition, the number of PS4 game copies sold during the same time period reached an estimated 50.40 million copies.
Sony sold 7.5 million PS4 units in fiscal year 2013, and 14.8 million units in fiscal year 2014.
The PlayStation 4 had sold 40 million units as of last May, and 50 million units as of December.
Sony Interactive Entertainment (SIE) announced on Thursday that it sold an estimated 6.20 million PlayStation 4 consoles worldwide during the holiday season.