Originally Posted by
Looigi
I think you hit most points. Existing cycling GPS units are all far from perfect. They have very small low res screens so don't work well as maps (can't see enough detail and range at the same time). They also don't permit laying out routes.
Not sure where you get that. You can easily lay out routes using any number of online tools that create .GPX files for export. You can also just enter an address in an Edge 705 and later and it will navigate you to that and will even have a separate screen that will show you upcoming waypoints and your distance from them.
I'd go with the Edge 705 on the used market or the 800. Personally, I don't find the need to have Bluetooth linking with a cell phone for live tracking to be a big selling point. But if you do, you want the Edge 900. Also, DO NOT buy the map card. Get your own microSD card and download the maps to the card yourself using the Open Street Map files.