Hello, The TOPO Switzerland map is on a micro SD card and this is inserted into the Garmin Edge 1030. This means that you always have the Topo Switzerland maps on the device for navigation or to determine your position. All Swiss cycling and biking routes as well as all Swiss bike routes are available. Ask yourself the question: Do I need the device for navigation or simply to record my cycling activities? Do I ride a lot on the roads or also off-road with my bike? For me, there is nothing better than the Topo Switzerland map. I ride a lot on dirt roads and small roads and they are all on the Topo Switzerland map, I can't say how accurate the other Garmin maps are because I haven't used them yet.

As far as I know, "fetching" is not possible. I connect the device to the PC via USB and push the GPX onto the device. Alternatively, it works via WLAN and Garmin Connect, i.e. import the GPX into Garmin Connect and then use the "Send to device" function from there.