Are the Index controllers the only ones compatible with Pimax

I have been reading that the Oculus touch and or Knuckle controllers are really good, others like the Index too but after some researching reviews of Index and oculus controllers it seems most like the Oculus. So I was wondering if the Oculus were easily pairable with the Pimax headsets

No Oculus Touch controllers aren’t compatible. Index (previously called Knuckles) are.