"The Wii U, the first eighth generation home console released, has sold more than seven million units worldwide. This figure makes it the second bestselling console, behind the PlayStation 4 and ahead of the Xbox One. It has taken the Wii U 21 months to reach this milestone.
Sales for the Wii U had been poor for most of the year with weekly sales of around 30,000 units for much of the year. However, since the release of Mario Kart 8 in May the console has remained above 50,000 units sold every week and has sold nearly one million units in three months."