The Wii U is Nintendo's worst selling console ever

Nintendo Wii U has managed to sell a total of 13.6 million units since launching in November 2012.

A Tribute To The Wii U: Nintendo's Lost Console

The Wii U has sold through 13.5 million units, making it officially Nintendo's worst-selling console

RIP Wii U: Nintendo's glorious, quirky failure, Wii U

Nintendo's disastrous Wii U proves to be the Switch's secret weapon

Nintendo Switch On Track To Become One Of The Best Selling Game Consoles Of All Time

Wii - Wikipedia

Nintendo stole the Wii U's best idea for the Switch, and it was a great move - Polygon

The Wii U Is Getting Harder To Find

The Wii U is Nintendo's worst selling console ever : r/nintendo