Ampere Analysis data predicted 51 million sales of the Xbox One line of consoles in 2020, and it appears they were right.
The translated line reads “Sony has surpassed Microsoft in terms of console sales and install base, having sold more than twice as many [than] Xbox in the last generation”, from a rough Google translation.
Sony recently released their final PS4 sales figures, confirming 117.2 million sales of the console line, making it the second biggest home console of all time.50-something million sales is hardly a failure, but likely far below what Microsoft had hoped for the Xbox One.