PlayStation 4 outsells Xbox One in May, according to NPD data

The PlayStation 4 was back on top last month.

After the Xbox One surprised everyone by outselling thePS4 in April, Sony has come charging back to own hardware sales in May, according to data from research firm The NPD Group. The Japanese publisher has confirmed to GamesBeat that its PS4 system outsold the competition in the United States, which is where NPD tracks sales. With the $55 billion worldwide console-gaming market up for grabs, it’s essential for Sony to keep its lead in sales.