As far as the current-gen consoles are concerned, it seems that Sony’s PS4 is leading the pack as during E3 2017, Sony announced that they have managed to sell 60.4 million units of the PS4 to customers worldwide to date. This is double the amount from when Sony announced their sales back in November 2015 where they had sold 30 million units.
We’re not sure where Microsoft is standing at this point because the company has never really published its sales figures, although in recent times we have been seeing how the Xbox One has managed to outsell the PS4 in certain markets, so that is pretty optimistic. There are some who believe that Microsoft’s recently announced Xbox One X could help boost Xbox sales ahead of the PS4.
However the Xbox One X is priced rather dear at $499 which could make it harder to adopt than the PS4 Pro which is slightly cheaper, but perhaps the raw power in the Xbox One X could make it more justifiable. As for Nintendo, the Switch has managed to sell over 2 million units to date which still puts it pretty far behind the competition, so it remains to be seen if it will be able to play catchup.
In the meantime analysts have predicted that Sony could sell as many as 69 million PS4 units by 2019, and at 60.4 million units in 2017, it sure looks like Sony is on track to hitting that mark.