HobbesOnTour
Guru
- Location
- España
Btw when i use google map to plan the route
That there is your main problem.
Google maps is a very far cry from a decent route planner for bikes. Now I understand the A roads question!
Komoot, RWGPS, Strava and especially Osmand will allow you to plan a route, save it and navigate it. As I said above, cycle.travel is an excellent planner. Use it to plan a route (at home) and then follow it (using one of the apps) on your phone on your bike.
While I agree 100% with @PaulSB above I strongly suggest you familiarise yourself with route planning before investing in a unit.
YouTube is your friend. There is no shortage of video tutorials for different apps and online planners.
There's "navigation" and there's navigation.
Do you want turn by turn directions? Breadcrumb trail? Voice instructions? Sounds? Route recalculation? On device planning? Favourite locations? Time/Distance/Climbing remaining? Search options (Postcode, Points of Interest etc.)
Any dedicated cycling computer (of this type) will sync with Strava etc. so recording should be easy.
Bike computers can be great for helping us spread out wings - they can also be bloody frustrating. Take the time to figure out the right one - for you.