https://wccftech.com/greenberg-xbox-one-outsold-ps4/

According to Microsoft’s head of Xbox marketing, Aaron Greenberg, the Xbox One has outsold Sony’s PS4 in the US the last month.

Sales numbers are based on NPD data from December 2017, and include Xbox One X sales. While Microsoft’s Xbox One console managed to outsell the PlayStation 4, the Nintendo Switch sold the most overall units in the States.