The Google Home app’s Activity tab showcases the activity history for your entire home, including devices that are not made by Google or Nest. At the top of the tab is a new AI-powered “Home Brief” feature, which uses Gemini to summarize things that happened in the home that day, saving you from reading through hours of alerts and events.

Alphabet Inc.’s Google introduced a range of new Nest-branded hardware on Wednesday, just a day after Amazon.com Inc. held its own product showcase, as both companies vie to more deeply integrate artificial intelligence throughout the smart home.