Now-a-days, almost all the aviation GPS units are rated as VFR but with one exception that in the case of emergency you have to adopt the IFR flight system. The maps that are already loaded in these systems are Jeppesen based maps and theses maps are used as standardized maps in these machines. Now, new and advanced aviation headset is used in this machine which makes it easer to use and also make it user friendly as well. These VFR based units are useful in such conditions when a panel fails to handle then at that point this is very helpful to you. In these standardized maps different color combinations are used so that anyone can easily differentiate between different layers.
In airplane GPS, a new technology is used through which you can easily navigate the plane according to your requirements and you can also use the facility of auto pilot through this system as well. The latest flight GPS units have internally saved database which guide you about the obstacles that are coming on your way. The movement of map allows you to track your flight accurately so that the chance of error minimizes and you can accurately track your flight.