IDC estimate Steam Deck has sold ~4 million units, total handheld PC market 6 million

[curl-6]

Roughly three years after its release in 2022, research firm IDC estimates that Steam Deck has shipped approximately 4 million units, with other PC handhelds like the ROG Ally, MSI Claw, and Lenovo Legion Go shifting another 2 million combined.

https://www.theverge.com/pc-gaming/618709/steam-deck-3-year-anniversary-handheld-gaming-shipments-idc