The Xbox One outsold the PlayStation 4 in North America last month, according to Xbox marketing head Aaron Greenberg.
Greenberg cited unreleased NPD data and stated that while the Nintendo Switch was still the dominant console on the market, Xbox was able to report its highest December console share ever.
Was trying to just thank folks for supporting us and the incredible success following the launch of Xbox One X. But yes Xbox outsold PS4 in December for Gen 8 consoles according to NPD data, while Nintendo also had a great month as Switch had most overall units.— Aaron "Greenbeard" 🏴☠️🍌 (@aarongreenberg) January 12, 2018
Meanwhile, just this week Sony announced that the PlayStation 4 had sold 5.9 million during the festive period alone, and over 73 million units in total since its launch in 2013.
December's figures represent a significant improvement for Microsoft however. The company stopped publishing sales figures for the Xbox One back in 2015 but estimates for the console sit at around 33 million units.