Back when Google announced Android KitKat, they unveiled a new way to control your smartphone by saying the phrase ‘Ok Google’ out load.
Over time this feature has been integrated into a number of different applications, and most recently, Google added this feature into the Google Maps application on Android.
To get started, you simply need to head into the Google Search app and then turn on “Ok Google” everywhere, or for just the Maps application.
Then you can head over to the Google Map’s settings and choose whether it will work while Maps is open, or if it will work from anywhere in the system. Once you have chosen one of these options, you can then use various commands like “find my nearest Tesco” after saying “Ok Google”, without having to actually touch your phone.
It will also work with a number of already existing commands, alongside some new phrases that allow yo to control the Maps app in a number of different ways.
You can read more about the addition of the Ok Google feature in Google Maps at the source link below.
Source: Google Maps Blog