Orange 618 vs 620?

[Mitaccio]

i can't see there being any differences between the orange rx 618 and 620 except that the 620 has s.bus. The 618 is way smaller and I am leaning towards it for my FPV build. Any input as to which I should go with? I will be using a DX6I.

 

[RENOV8R]

Actually there is hardly any difference in size and the 620 has SBus. Which means you can actually get double the 6 channels. Also, you can reduce the size of any receiver if required simply by removing it from the case and protecting it with clear shrink tubing.