Edge 25? (£50ish second hand) It's tiny, simple, but does the job for me i.e. basic navigating around town. It's a breadcrumb trail, with left /right indicators that beep and flash on screen about 100m before and on the turn itself. If you miss the turn it doesn't reroute, but it shows you where you are in relation to the breadcrumb trail so you can work your way back to the route using common sense. I've been using the phone app to set the route and synching it there and then instead of using the computer beforehand, and it's been pretty good so far in terms of finding cycle friendly routes. You can't put a postcode in, but you can pin point your destination which is fine. It does what I need it to do without having a bulky phone on the handlebars.
Edge 25? (£50ish second hand) It's tiny, simple, but does the job for me i.e. basic navigating around town. It's a breadcrumb trail, with left /right indicators that beep and flash on screen about 100m before and on the turn itself. If you miss the turn it doesn't reroute, but it shows you where you are in relation to the breadcrumb trail so you can work your way back to the route using common sense. I've been using the phone app to set the route and synching it there and then instead of using the computer beforehand, and it's been pretty good so far in terms of finding cycle friendly routes. You can't put a postcode in, but you can pin point your destination which is fine. It does what I need it to do without having a bulky phone on the handlebars.