Navigating these days is done via cell phone or a navigation system. The navigation system has the advantage that you can enter multiple points on the one route. The advantage of navigating via smartphone is that you are always "up to date" with the maps. It just depends on what you prefer but the fact is that both must be mounted to a secure holder.
At Blue Rider we have made a selection of different phone holders and navigation systems. We offer only the best brands such as TomTom, Garmin and SP Connect.