Garmin 605 vs 705

dr11 Posts: 31
edited March 2011 in Road buying advice
I want a navigation device for rides so I don't have to stop and use maps etc.

I'm not bothered about heart rate or cadence information so the 605 looks sufficient.

Can anyone tell me if that really is the main difference between the 2, i.e. is the navigation still good enough on the 605?