Sena 10S has a double sided sticky tape mount for the microphone whereas the 20S has a hard mount microphone. About double the riders in coms and a bit farther in distance. We're happy with the 20s's.

 

if your considering the 20 s up grade to the 30 k instead. much better unit.

 

From what I've read, the 30 doesn't give you stereo either...

 

You are correct.....only the 20s that's "branded" to HD has stereo sound.

 

Thx for that. The operational difference between the 2 units lies in the interface with the WHIMS. I suspect you are connecting directly to your phone. If you connect to the WHIMS so that you can have full functionality with the bike, no Sena operates as seamlessly and provides maximum functionality as the Sena 20s that's branded to HD. I'm hoping to hear from someone who can tell me about what full functionality with the bike means....Siri? phone advantages? I know stereo with 20s and not the 10s, but can't decide if the advantages of the 20S are worth the upgrade.

 

Sorry I couldn't help out more. I know nothing of the WHIMS system, nothing on my bike's audio system is Harley. I use the 20S to connect to both the head unit and to the phone. Now that the GF is riding her own Road King, she also has the 20S. I just didn't like the idea of using sticky tape to mount the microphone boom to the helmet. Another plus, if/when it gets moved to another helmet, there will be no fussing with double sided sticky tape.

 

 

The HD Branded Sena 10S, has/is stereo correct?

I just installed the WHIM but have not had the bike flashed yet,,, and I have Non Branded 20S and 10S already, so I guess now I will buy the HD Branded 10s or 20s, or 30s

 

If you have the HD branded ones you can make setting changes to the headset from the screen. Not necessary but it does make some things easier. The HD brand ones also stand up to water better.