Sure ! but you'll need to type the password to see the results.
Look for it in Settings, Language and input, Google voice typing, OK Google detection. There's an on off toggle in there.
It's really buried deep.
I don't have that option i have only i have only"say google any time"your device recognize your voice when you say ok google even when the screen is off or you are yousing your application down under is option while driving.that's it nothing else.it works normally while charging when I disconnect charger it doesn't work.so my phone is not shot down only screen is off