Microsoft began the ninth generation of consoles with two Xbox models. On the one hand, Series X. It is the most powerful version of this hardware, 4K guarantee and up to 120 fps in games optimized for the machine. On the other hand, its little sister: Series S. More compact, its power is not far behind and makes it possible to play in high resolution and up to 120 fps at a price that is as tight as it is attractive. In this case, its catalog is entirely digital as it does not have a physical disc reader. Both share some characteristics, such as Smart Delivery or access to Game Pass Ultimate. The latter is a subscription that gives you access to a almost infinite library of new games every month.