World Beyblade Organization by Fighting Spirits Inc.

Are the korean versions of beyblade burst compatible with the TT versions?
Are the korean versions the same quality as TT?

Yes, they are compatible as far as I know, and I believe they are also of very similar quality.

Umm.......if you are talking about product difference, there is no 'Korean version'

Youngsilup does not make any beyblades.
They only import from TakaraTomy, and all mould products are made in Vietnam.
We can check the driver, both are written as "Made in Vietnam"

Only difference is NFC chip in Layer, and Beylogger. That is so-called 'Korean-version'