There are many digital assistants, If you pick to use Alexa as your personal digital assistant, after that you probably installed it already on your supported devices. But the functionality is not as broad as in the same way as you’re using it on an Echo smart speaker for instance. But now it looks once Amazon wants to improve Alexa skill more than more devices, including Android tablets. The latest update to the app now lets you place audio and video calls when Alexa as with ease as sending messages to your contacts considering its help.

https://tabcult.com/2018/03/13/alexa-now-have-audio-and-video-call-features-on-android-tablets/