Actually I use the RV 760.
It has Bluetooth for hands free phone. Voice activated commands for phone and GPS features (such as find nearest RV park, or fuel stop). Plus it features current weather conditions and alerts. Another feature is current traffic conditions and traffic cam access linked to garmins Bluetooth smartphone app for GPS. Plus a lot more RV related information.
I use the smartphone GPS and apps for around town in the toad. I also have stand alone GPS in toad. Wouldn't be without phone.