A satellite navigation system will increase your safety while driving on the road. Once the system is set, you don't have to worry about cell phone towers sending you into the wrong neighborhood. The more reliable satellite system always knows your exact location as well as what direction to travel in order to reach your final destination.
Sat navs have a built-in interface which will divert you to avoid traffic and get to your destination in the quickest amount of time possible. The same applies if there is an accident on the route or there's a road closure.
With a sat nav you will be able to reach your destination in the shortest time possible or the shortest route possible. With the accuracy of sat nav's guidance, there will be no wrong turns and no wasted fuel.
Almost all modern satellite navigation systems have a feature that alerts you when you are approaching a fixed speed camera. Some systems may even detect a police speed gun. Once you hear the distinct alert, you know to slow down which hopefully will help you avoid a costly speeding ticket.
When you're travelling and you want to stop for lunch or dinner, or grab a cup ofcoffee, you can use your sat nav to find the closest restaurant, diner, or coffee shop. I don't know about you but when I'm hungry, I don't like driving around just to find a decent place to eat.