"In this third article we will be comparing the aligned launches of the three 8th generation home consoles worldwide. The Wii U launched on November 18, 2012, the PlayStation 4 on November 15, 2013 and the Xbox One on November 22, 2013.
The Xbox One the biggest opening week with sales of 1,125,874. The PlayStation 4 launched with sales of 1,051,921 and the Wii U with sales of 472,099. However, the Xbox One launched in North America and Europe during the same week, while the PlayStation 4 just launched in North America on November 15. It would be released in Europe two weeks later on November 29."