July 2019 is the 29th month that the Nintendo Switch has been available for in the US. During the latest month the gap grew in favor of the Nintendo Switch units when compared to the combined sales of the 3DS and Wii U during the same timeframe by 52,579. In the last 12 months the gap has grown in favor of the Switch by 750,187 units. The Switch is currently behind the 3DS and Wii U by 214,347 units.
The 3DS launched in March 2011 and the Wii U launched in November 2012, while the Nintendo Switch launched in March 2017. The Switch has sold 12.58 million units, while the 3DS and Wii U have sold 12.79 million units during the same timeframe.