Google Maps joined the Apple Watch bandwagon Tuesday. An update to the Google Maps client for iOS slipped in an Apple Watch app along with new comparison feature for different travel modes.
From Google Map's release notes:
What's New in Version 4.11.0
- Easily compare ETAs across driving, transit, walking & biking
- Call business & get directions directly from a list of places
- Get directions to places now on your Apple Watch
- Bug fixes
Screenshot of Google Maps on Apple Watch
The Apple Watch app displays written directions for either your home or work address, both of which require you to be signed in on the Google Maps app on your iPhone to work.
Google Maps is free on iOS*.
*Meaning you are the product.