Yep
You get a beastx you'll need a separate rx (which will define what TX you can use it with.. keep it in the 6channel range.. and it will work just fine! )
You get a 7200bx it won't (it has inbuilt rx.. and runs fine with anything from a 6 channel dsm2/dsmx tx to as high as you can go on that spektrum technology. SO your dx6i is covered
And yes both work perfectly fine with the dx6i
I was using it that way till last week
If I knew you wouild be looking.. lol i would have sold you mine. I just sold it to someone and gave them a bangin deal too
lol
Fly safe!!
have fun!