CATEYE Velo 9

The model I have does not have maps, and I don't know what you mean by navigation. This replaces an older model cateye and has more features. I like that it keeps track of the elapsed time for a trip. I haven't tried it yet, but I think that being able to enter a "trip" distance is an excellent way to load the distance from another bike computer. They don't tell you if loading a trip distance is added to the current total or replaces it. And it would be nice if they warned you to periodically make note of your total distance, because it will be lost when you have to change batteries. I do like that they tell you where on their website you can get more detailed instructions, and the detailed instructions are excellent!