During the month of August 2019, the Switch outsold the PlayStation 4 by 72,934 units for the month and the Xbox One by 783,122 units. The PlayStation 4 outsold the Xbox One by 710,188 units.
When you compare monthly sales to a year ago, the Switch is up, while the PlayStation 4 and Xbox One are down. The Nintendo Switch is up 88,597 units (+9.9%), the PlayStation 4 is down 151,169 units (-14.2%) and the Xbox One is down 190,916 units (-48.3%).
Taking a look at the marketshare, the Switch managed to achieve 47 percent of the monthly sales. The PlayStation 4 accounted for 43 percent of the consoles sold, and the Xbox One just 10 percent.