This sounds like a really obvious question, but I can't find the answer anywhere! I know the GPS will work on the watch without a paired phone, but does this just record position data for later downloading to a map, or can the watch (series 2) display maps, and therefore navigate, without a phone connection? I tried turning off Bluetooth on my phone and could still use the maps, but this may have been read from a data cache. If this is possible, this would imply that maps are downloaded to the Watch itself, which I don't think happens with the phone maps. Does anyone know? Thanks, John.