Or, you can see Google Home is a voice-activated personal assistant. You can dictate it just using your voice.
Some owners may consider Google Home as a Chromecast Audio with a built-in speaker.
The direct competitor of Google Home is Amazon Echo. If you are an Echo user, you can just imagine Google Home is a similar device with a smarter brain.
Anyway, Google Home can be a quite different device if you look at it with different perspectives.
This page will try to explain to you what is Google Home from 3 perspectives.
Google Home as a connected speaker
On the surface, Google Home is a speaker that always connects to internet.
So, in this sense, Google Home is similar to Chromecast audio + speaker. Actually, Google Home can be used as Chromecast audio: whenever you want to cast to Chromecast audio, you can cast to Google Home.
The difference between Google Home and Chromecast audio is obvious: Chromecast audio requires a speaker. And you can use 3 types of audio cables to connect Chromecast to the speaker.
While for Google Home, you cannot connect a speaker to it. You must use the built-in speaker, which is decent at that size, but usually is inferior to your HiFi systems.
So, Google Home is NOT a replacement for your Chromecast Audio.
Also, Google Home does not support Bluetooth and you cannot use it as a Bluetooth speaker as what you can do with Amazon Echo.
Google Home as a smart assistant
Google Assistant, the brain of Google Home, is actually a re-branded Google Now, which you already use it in your phone for years (since Jelly Bean).
In Android Marshmallow, Google Now was offered as Now on Tap.
You can also use Google Assistant in Allo app on your smartphones.
So, Google Home is similar to smartphone + Google Now.
Of course, as a smart assistant, Google Home can help you find info and answers (voice search), check whether, set alarms, manage calendars and shopping list.
Google Home as the hub of a connected home
Google Home can also connect to other devices and acting as the hub of your connected home.
So, What is Google Home?
Google Home is a combination of a connected speaker, a smart assistant, and a hub of connected home.
Do you have any questions on Google Home?
You can leave your questions or thoughts on Google Home in the comment box below.
For any specific issues of Google Home, you may check Google Home guides.