See how PlayStation revolutionized portable gaming with PlayStation Portable and the all new PlayStation Vita.
The PlayStation Vita: History, Launch, and Ultimate Failure Explained - History-Computer
A History of PlayStation's Portable Consoles - KeenGamer
Sony handheld gaming consoles timeline – from PocketStation to PlayStation Vita
Sony PSP serves up more than games
Sony Rumored to Develop Next-Gen PlayStation Handheld with Native Game Compatibility
PlayStation Portable (Platform) - Giant Bomb
The portable PlayStations were Sony at its most ambitious - The Verge
A History of Handheld Gaming – Pad and Pixel
Game Handhelds Came Back This Year. Here's What It Means for Gaming in 2023 - CNET
Sony: Every Handheld PlayStation Console & Model, Ranked