+1 for the Edge. I have a 305 but will be getting a 705, quite annoyed that I bought a 305 now; clearly it was just a stopgap product, the 705 looks the real deal.will said:It certainly depends what you want. The 705 also provides Heart, Cadence and even Power compatibility.
I don't think Sat Map does any of those.
I love my edge 305 and will likely get the 705. As an aside for mapping I have used a Garmin etrex vista C (which for years has provided navigation and color mapping for a bike) its only drawback for me was no HRM/Cadence