Microsoft officially confirmed that Sony's PS4 outsold Xbox One by twice as many devices - Tech
Microsoft Disputes Notion PS4 is 30% More Powerful than Xbox One - IGN
Xbox One, PlayStation 4 fuel 50% spike in video game console sales - Los Angeles Times
Why I'm Buying an XBOX ONE Instead
PS4 or Xbox One? A parent's guide, PlayStation
PS4 Pro vs PS4: what's the difference?
Got a PS4 or Xbox One collecting dust? Here's what to do with it
Xbox One or PS4 [PlayStation 4]: Which New Video Game Console Should You Buy? A, playstation 4
The Xbox One X makes the PlayStation 4 Pro feel like a half-measure - Polygon
Documents Show PS4 Sold Twice As Many Units As Xbox One
Pay to play: Xbox One, PlayStation 4 differ on premium features
Resellers Are Now Profiting From PlayStation 4 And Xbox One Consoles
Sony's PlayStation 4 Will Launch “This Holiday Season” For $399, $100 Less Than Xbox One