Android Police explains that, just like “Ok Google,” “Hey Google ... available on more handsets than ever, thanks to Google’s recent app update — read more about it at this link.

However, more can come through to your surprise if you activate ‘OK Google’ detection from any screen. This will mean that when your phone is locked or when you are using another app ...

That's because smartphone voice assistants like "OK Google" need to know ... from listening to you by disabling Google Assistant 1. Open the Settings app. 2. Tap Google. 3. In the services section ...

When you open the app, you will see the warning indicators that asks you to turn off Google Now Hot word Detection. Go to Settings > Voice > OK Google Detection > Turn it Off. Now Go back to Open ...