I've got one of these : JXD S5800 http://www.jxd.hk/products.asp?id=645&selectclassid=009006 Performance wise its almost the same as the Galaxy S3 so it's not the leading edge in performance per se, but still it's fast enough for most emulators like NES, Genesis, SNES, PS1, N64 (Most games), and DC (Most games as well.) It's also a full featured phone with SIM card slots, cameras, the works. So it works awesome for me. But then if you want something better and faster but doesn't have a SIM card slot, try this one instead. http://www.jxd.hk/products.asp?id=639&selectclassid=009006