What (if any) bike computer?

[pauloroberto]

I have got into road cycling in the last few months. I have been using Strava for navigation and to monitor my average speed. The problem is that the navigation is primitive and, if I leave the screen on, it dies after about 30 minutes. That's not much use when I have signed up to ride 100 miles! It looks like I need a Garmin Edge Touring but reviews of that are mixed. Any advice welcome....