Ask Siri. Say something like:
“Directions to the nearest gas station?”
“Get directions home”
“How far to the airport?”
Open the Maps app
When you’re using turn-by-turn directions, your Apple Watch can alert you when you need to make the next turn. To choose the turn alerts you want to receive, follow these steps:
Open the Apple Watch app on your iPhone.
Tap My Watch, then tap Maps.
Turn on the alerts you want to receive—Driving, Driving with CarPlay, Walking, and Cycling.
Note: Location services must be turned on to use turn-by-turn directions. On Apple Watch, go to Settings at the top of the screen.
With a route showing in the Maps app Use Apple Watch to get directions or contact a friend