Originally Posted by jmpdev2020
I really don't see the major difference between these two units. They both appear to be Sirius Travel Link capable and also have the ability to stream music via blutooth from your phone. These are the only two benefits over the 730 RER unit worth anything. And the only major differences between the two appears to be some additional voice command features on the RHR and the NAV interface - Harmon on RHR, Garmin on RHB.
This link describes the differences
The navigation interface preference is really personal preference IMO.
The big value-add features on the RER/RHR are: (a) dead reckoning (b) voice command of navigation, and (c) SIRIUS Traffic.
Those features aren't deal-breakers for me. My deal-breaker was voice command of music, which only the RHB had when I ordered (RER doesn't have it).
However, RHR will add the two missing "value add" features from RHB - (a) voice command of music, and (b) SIRIUS Travel Link.
Basically, if someone wants SIRIUS Traffic or wants to voice control the navigation while in motion, their only option right now is to find one on the lot with RER, or wait for RHR.