During the month of August 2018, the PlayStation 4 outsold the Switch by 30,490 units for the month and the Xbox One by 529,061 units. The Switch outsold the Xbox One by 498,571 units.
When you compare monthly sales to a year ago, the Xbox One and Switch are up, while the PS4 is down. The Xbox One is up 162,500 units, the Switch is up 278,405 units, and the PS4 is down 94,548 units.
Taking a look at the marketshare, the PlayStation 4 managed to achieve 42 percent. The Switch accounted for 40 percent of the consoles sold, and the Xbox One 18 percent.