ALTERNATIVELY...
Nintendo Classic Mini: snes
Nintendo’s plug-and-play mini is a little light on games, but they’re almost all true classics, and the build quality is nice.
sega genesis Flashback
Atgames’ Sega offering is still far from perfect, but has improved emulation over past efforts. It also boasts 85 games and a cartridge slot.
ZX spectrum Vega
This 2015 release is still available, and offers 1,000 games. The emulation is good but the composite video and virtual keyboard hurt it.