Google Assistant vs Siri


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Google Assistant
Virtual assistant integrated in conversational user interface products: Google Allo and Google Home. You can ask a question for an answer, and follow up with multiple questions, with Google picking the conversation out and returning the right answer.
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Siri
Talk to Siri as you would to a friend and it can help you get things done — like sending messages, placing calls, or making dinner reservations. You can ask Siri to show you the Orion constellation or to flip a coin. Siri works hands-free, so you can ask it to show you the best route home and what your ETA is while driving. And it’s connected to the world, working with Wikipedia, Yelp, Rotten Tomatoes, Shazam, and other online services to get you even more answers. The more you use Siri, the more you’ll realize how great it is. And just how much it can do for you.
Face to face in the news:


2018 - Google Assistant arrives on iPad to take on Siri


Google Assistant has launched on iPad to allow customers to control their smart home, make calls, send texts, set reminders and more, from their Apple tablet. It’s offered on iOS in English, French, German, Italian, Japanese, Portuguese (Brazil) and Spanish, Google notes. The arrival on iPad offers a similar experience as on iPhone, the only real difference being the larger screen and support for iPad-only features, like multitasking with a split screen. While there’s a lot of talk of the growing traction of smart speakers, like Amazon Echo, Google Home and Apple’s HomePod, voice assistants have the potential for even broader reach by way of mobile devices. Of course, neither the Alexa app nor Google Assistant are as accessible on iOS devices like iPad, compared with Siri, which can be activated with a press of a button or the voice command, “Hey Siri.”

2016 - Google launched virtual assistant called Google Assistant. Siri is in panic


Google has launched its own voice-based digital assistant: Google Assistant, that is smarter than Siri and Cortana. You can ask a question for an answer, and follow up with multiple questions, with Google picking the conversation out and returning the right answer. Google Assistant will appear in  the new Google messaging app, Allo and work during conversations and automatically try to help with, for instance, dinner reservations the group is discussing. It will also bring in outside, relevant information like restaurant cards, (the kind you normally see in Google Now and Google search results), and then guide users through setting number of diners, time to dine and making reservations with Open Table.