Steam Deck sales show dominance over the handheld gaming PC market, but their comparisons to PS Vita sales may be surprising.

Depending on which podcasts you listen to, you may be forgiven for thinking the Steam Deck is the most important platform on the planet. But new market research from IDC estimates the handheld has shipped around four million units since launch, putting it at about a third of the PS Vita’s lifetime total.

How many Steam Decks has Valve sold so far? The company isn’t saying, except that it’s “multiple millions.” We know the Steam Deck is a smash hit, but new research estimates give us a better picture of the new handheld PC market,