Why Sony Has Never Pursued Another Handheld Console Like the PSP or PS Vita

Opinion: RIP PS Vita - 2012-2018 - The Escapist

Heres Why Sony Will Not Be Making Anymore Handheld PlayStation

The PS Vita: a case of wasted potential (part two)

Opinion: Sony's Not Solely to Blame for PS Vita's Demise

The portable PlayStations were Sony at its most ambitious - The Verge

Is the PlayStation Vita better than the PSP? - Quora

The Best PS Vita Review. The Good, The Bad. Is it Worth it

PSP2 Leak? Nope, It's The Upcoming GPD Win 4

Why PlayStation's Stint With Handhelds Paled in Comparison to the DS

Sony No Longer Focusing On Handheld Consoles

Sony Is Sadly Finished With Making New Handheld Systems

PS3, PS Vita, and PSP digital stores are reportedly being closed

Which is better, PSP Vita or Nintendo Switch Lite? - Quora