What do you have to know when you're looking for GPS navigation?

1. The screen size: if you will use the navigation in a car good size is 4.3" or 5". For truck we recommend 7 inch.

2. CPU speed: the normal speed is 500 MHz. There are faster CPU-s with 800 MHz.

3. It is important to know that if you use a charger in a truck you must put the charger after you start the engine.