Does Android have a similar function to "Hey Siri"?

I know Android has voice commands. But I'm looking for a new phone, and although I do not want an iPhone, I do like not having to press a button to initiate voice commands by simply stating "Hey Siri."

Is there an Android equivalent of that?

Isn't it "OK Google"?

My boyfriends Samsung S7 responds to "OK Google"

Depends on the phone manufacturer, they all have "Ok Google" or variations of it.

Standard is "Ok Google"

Motorola is "Hey Moto"

Samsung is "Hey Android"

Others have similar or you can make your own as well on certain handsets, such as "Hey Stupid" "Answer Me" "Oi Phone" etc etc

Thanks everyone. Very helpful.