Here is another compact game console that lets you play retro games on the go. The GKD Pro comes with over 20 game emulators and 2500+ retro games. It has a 3.5″ screen with game keys, D-pad, and secondary A/B buttons you need to play your favorite games like a pro.
The GKD Pro supports up to 512GB memory with TF cards. It runs for 6 hours on battery. It lets you play PS1, GBA, GBC, SNES, and other retro games. Expected to ship in February.