. One way to help you figure out the best of portable GPS devices for you be it mapping or navigation – or both – is to determine what type of activities you think you will participate in with your device. For example, if you are a person who doesn’t put foot to pavement except between your car and the nearest building, then you will probably want to pick a standard portable navigation unit. With these units you can map out where you want to travel by entering the address for where you are now and where you intend to end up. After you’ve entered the addresses, the device will create a map showing how to get to your location. In addition, it will give you turn-by-turn instructions to your location (and alerts if you are about to miss your turn) to ensure that you cannot get lost along the way.