Car with car navigation is a portable good or dedicated to the car is good, why, performance difference, are which.

I personally feel that things are twofold, first of all, dedicated to the car: the benefits of the installation of beautiful, relatively easy to use, at the same time you can have a variety of functions, and make the car's grade increase, neat, no messy line. Problems: First of all, many models do not have a dedicated, and relatively troublesome to upgrade, after all, to upgrade the car, not good to dismantle.

Advantages of portable: portable, and can be used for other purposes, due to the internal battery, in the case of the vehicle does not have electricity can also work for a period of time. And it is easy to upgrade. At the same time the use of the process of installing a comfortable position, I feel that when you drive the line of sight are basically above the dashboard, as a dedicated type are installed in the dashboard below, look at the navigation when the line of sight to leave the road, so that driving safety is not conducive to the portable machine can be installed according to the convenience of their own installation, relatively safe. However, in the event of an accident such a poorly fixed navigator will instead cause more damage. Problem: Stay in the car is not safe, easy to attract thieves. Occupy space in the car and have wires.