Battery Drain: Running a navigation application on a smartphone can sometimes take a toll on the smartphone's battery.This makes carrying a phone car charger more important and can be an added cost if you don't already have one.The same goes for the names and addresses of any points of interest you want to visit.Convenience: Smartphones offer the convenience of inputting an address as you walk to the car, leveraging your contacts for their addresses, having a calendar invite remind you that you need to leave at a certain time and then routing you there.Updates: The maps on factory systems are typically as current as the year of your vehicle.If you want to update the maps, you typically need to purchase a DVD or memory card. Use Limitations: Some factory navigation systems do not let you input directions while the car is moving.Resale Value: Factory navigation systems may improve a car's resale value, but only within a few years.After three to five years, our analysts say, used-car shoppers are less interested in high-tech features, especially if they look dated and lack the capabilities of newer cars.
Given the quality of the apps from Apple and Google, we're inclined to agree that they are good enough for most people.
Just a small number of new vehicles and aftermarket stereos offer the systems now, but we expect more to be available in the coming years.
Cons Distraction: Unless you purchase a car mount for the phone, it will most likely sit in a cupholder and you'll have to take your eyes off the road to check the directions.
Cons Price: Prices for factory navigation are all over the map, and there doesn't seem to be any logic to them.
À la carte navigation systems start around 0 in new cars.