Get turn-by-turn directions
Your phone can give you turn-by-turn directions. Before you hit the road, set up a Directions widget on your home screen, and you'll have directions right to your destination.
When you're ready to roll, just touch the widget, and your phone will talk you through the directions.
You can also use voice commands to tell your phone to navigate to a destination. On the Google Search widget, touch 
and say, ‘Navigate to [destination]’.
TipNavigation is one of the most power-intensive apps, so keep your phone plugged into a high-quality car charger, especially if you're streaming music and/or using Bluetooth (also power-intensive features).