Thanks to an update to the Google Assistant for iOS app, the digital assistant now supports the Apple iPad. Not much, as Google obviously wants to keep the Assistant experience as similar as possible across both platforms.
Google also points out that with multitasking in iOS 11, you can take advantage of that larger screen size in other ways. Microsoft released an iPad-optimized version of Cortana last month, after Amazon's Alexa ranked third overall in iPad App Store downloads during the 2017 holiday season. Other than that, it should be the same Assistant you know and love, capable of controlling your smart home, checking weather, calendar events, plus everything else. It's available in English, French, German, Italian, Japanese, Portuguese (Brazil) and Spanish.
When the app is open, it can listen for "Hey, Google" commands, respond to natural language inquiries, and offer personalized information based on your Google account.