I think you mean a JS100.
the JS100 (Korean) neck isn't as nice or as high quality as the multi-radius JS1000 (Japanese version)
the JS100 has crappy Ibanez AH pickups vs the JS1000 has nicer Dimarzio Fred and
Paf Pro pickups
the JS100 has a trem that has a wide range of quality issues going from "it stays in tune perfectly" to "it never stays in tune ever no matter what I do with it"
so basically just the body is the same between both guitars. Both are Radius/JS shape and made of Basswood. Everything else is different on the guitars.