Google Nest Hub is a voice-activated assistant that does a variety of things, from adding items to your shopping list to playing music and controlling your smart home devices. You can ask it questions, or tell it to do things. For example, you can say "Hey Google, add milk to my shopping list," or "Hey Google, turn on the living room lights." Nest Hub also has a touch screen, so you can tap on it to do things like view your schedule, see weather information, or control your smart home devices.