1. PlayStation 2
PlayStation 2 remains the best-selling video game console of all time. Sony's beloved system tops Nintendo DS by roughly 5 million units sold, while handily outselling every other console in existence. As of January 31, 2011, Sony had sold 150 million PS2s to retailers. While that was the last official total reported, the console would remain in production through early 2013. Niko Partners analyst Daniel Ahmad (via ResetEra) noted sales climbed to 155.1 million through March 2012.
2. Nintendo DS
This sales figure comes directly from Nintendo and encompasses total sales for all systems within the DS family, including the original model, DS Lite, and DSi. Nintendo DS is also the company's best-performing system in terms of software sales, with nearly 950 million games sold.
3. Game Boy/Game Boy Color
This sales figure comes directly from Nintendo and includes sales of both the original Game Boy and subsequent Game Boy Color. 501 million units of software were sold for the console — good for third on Nintendo's all-time software list.
4. PlayStation 4
PlayStation 4 has dominated the eighth generation of consoles. As of March 31, Sony has shipped 110.4 million PS4s. It holds the title of "fastest home console to reach 100 million unit sell in," according to Niko Partners analyst Daniel Ahmad, beating PS2 to the milestone by two months. To date, more than a billion software units have been sold for the console.
According to Sony, the original PlayStation's final sales total sits at 102.4 million, with over 960 million software units sold. This makes it the third-best-selling Sony console ever, as it was recently surpassed by PlayStation 4.
According to ign.com