Gamespot said:900,000 Xbox Ones went unsold worldwide in 2013
Microsoft confirms it shipped 3.9 million systems worldwide in 2013, but only sold 3 million to consumers.
Microsoft announced today as part of its latest financial report that it sold to retailers (shipped) 3.9 million Xbox One consoles worldwide during the quarter ended December 31. It sounds like a big number, but it doesn't tell the whole story.
Microsoft previously announced that it sold to consumers 3 million systems worldwide by that same end-date, meaning there were actually 900,000 Xbox One consoles either left on store shelves or in transport during the year. This despite Microsoft saying it was selling every console it could make.
http://www.gamespot.com/articles/900-000-xbox-ones-went-unsold-worldwide-in-2013/1100-6417303/