PlayStation Portable (PSP)

Sony's 2004 handheld — the first to bring near-PS2 visuals to a portable, with a 4.3-inch widescreen display and UMD optical media. Twenty years on it remains the most collected retro handheld: batteries and shells are still in production, the 2000/3000 revisions are cheap and plentiful, and Memory Stick adapters make storage a solved problem.