title_body: What's the difference between the Spektrum DX6 and DX6e? Besides 90 bucks :-)
  Looking through the specifications, they're both DSM2/DSMX radios with more model memories than you can use, 6 channels, wireless trainer, telemetry, 7 aircraft wing mixing types and 6 tail types.
  The only differences I can see is 4 vs 5 programmable mixes, and 2 vs 7 helicopter swashplate types.
  Is there a less-obvious feature that's missing, that would mean an average beginner would need to upgrade from one to the other? (and, yes, I know Flysky and Jumper offer great value, I'm just curious about how Spektrum differentiate these two transmitters.)
  Links to Spektrum's website for comparison: DX6e DX6
upvoted_answer: I found this comparison chart in an rcgroups thread. The DX6e and DX6 (G3 in this case) are very similar, but the biggest differences that I could find is that the DX6e doesn't have voice alerts and that it doesn't support wired trainer, which will make it harder to use with for example a simulator on a PC. The DX6e also supports mode 5, where the throttle centers with a spring.
  I see no compelling reason to upgrade from one to the other. If you want to use it with a simulator (which you probably want, at least as a beginner) it is cheaper to just buy a wireless adapter to be able to connect the transmitter to the PC via the wireless trainer link.