How to use Google Assistant ANDROID # 004 In this video you can see How to use Google Assistant in any Android device. By this feature you can do a lot of things by just saying voice commands. This is a Product of Google LLC. It is by default installed on the Android mobile phone. This can not only work on the mobile or tablets but also on other Android devices like Watches, tv, Google home etc. Watch The Full Video click here You can launch Google Assistant by. Google Assistant is activated by doing a long hold on the home button or home icon of your phone. Hold the button, and Google Assistant will ask you to speak what you want. Then it will begin the search process. You should also be able to trigger Google Assistant to launch by saying “OK Google” followed by your query