Saying "Hey Google" has been the simplest way to do various things on an Android smartphone for about ten years now: setting reminders, checking the weather, sending messages, listening to music Google Assistant made the list of features most people used regularly on their smartphones.
However, this period is coming to an end.
In 2025, Google decided to migrate all users from Google Assistant to the new generative AI assistant Gemini. It has promised to upgrade mobile users to Gemini, with the classical Google Assistant becoming unavailable on most smartphones in the future. Google has been implementing this plan through 2026.
Nevertheless, it doesn't mean that Google Assistant has disappeared from everywhere all of a sudden.
Since the transition goes through different platforms, and Google is creating Gemini for Home for speakers and displays, if you are interested in the future of your phone, voice commands, smart home devices, and features provided by the good old Assistant, read on below.
Why Is Google Going to Replace Assistant With Gemini?
Google introduced Assistant in 2016; it was the time when voice assistants were gaining traction on smartphones and smart speakers.
Assistant was great with simple and straightforward commands.
You could ask it:
- "Set an alarm."
- "Call Mom."
- "What's the weather like?"
- "Put on some music."
- "Remind me for tomorrow."
It worked well because Assistant was focused on tasks and services.
Generative AI technology is changing the expectations of users regarding what an assistant should be able to do.
Now users want assistants to comprehend longer questions, be able to keep the conversation going, analyze data, and perform complex tasks.
According to Google, Gemini is able to do it.
As opposed to responding to separate commands, Gemini was created to comprehend natural conversations and process complex requests.
As Google puts it, it is another shift in the platform due to generative AI technology.
Google Assistant vs Gemini: What's the Difference?
First and foremost, the key difference is the way both platforms deal with dialogue.
Traditionally, Google Assistant used commands and fast actions.
Gemini, in turn, relies more on generative AI, reasoning, conversations, and multimodal interactions.
For instance, instead of posing several separate questions, one can conduct a longer dialogue with Gemini and ask follow-up questions.
Gemini is also capable of handling different types of information, depending on the functionality of a particular feature or device.
Google has introduced additional capabilities for Gemini, including Gemini Live, which provides for more natural conversations, and other features that can be applied to various multimedia objects.
Thus, Gemini is more of an AI assistant than a remote control for your devices.
Well, sometimes it also means that the users might receive an elaborate answer instead of simply setting a timer.
Technology has its quirks, of course.
When Will Google Assistant Be Replaced by Google Gemini?
The replacement of Google Assistant by Google Gemini for mobile users started in 2025.
In its announcement in March 2025, Google announced its intention to update more users over the next few months, explaining that the traditional Google Assistant will not be available on most mobile devices towards the end of 2025. The company also announced that it will roll out the Gemini experience across tablets, cars, headphones, watches, and other connected devices.
The process has continued even in 2026.
The documentation of Android Auto by Google states that Gemini is being rolled out on most mobile devices, while Google continues working on the full-scale transition.
This notwithstanding, the actual experience varies depending on the device, operating system, country, language, and rollout schedule of Google.
This is why two Android users can have different assistant experiences.
What Will Become of "Hey Google"?
The traditional "Hey Google" wake phrase is not going away entirely because of the introduction of Gemini.
According to Google, users will be able to activate Gemini using "Hey Google," provided the feature has been enabled by the user.
Gemini can also be activated through touch-based features on some Android devices.
Therefore, the general approach remains the same.
Users do not have to type everything but can use voice commands instead.
The significant difference lies in the backend, where Gemini replaces the traditional Google Assistant experience.
What Capabilities Does Gemini Have That Assistant Does Not?
The main strength of Gemini is generative AI.
Google has included some extra features apart from voice commands.
Natural Conversations
Gemini can conduct natural conversations as well.
Unlike with regular voice assistants, it can take into account the context of the conversation and the way your question is phrased.
Gemini Live
Gemini Live allows for a more flexible communication flow.
Additionally, Google has expanded Gemini Live to images, files, and YouTube videos so that users can discuss information presented in various formats.
Research and Information
Gemini has some other capabilities such as Deep Research, which Google calls a platform to conduct more research.
This is another step forward from just being able to give commands to the assistant.
More Personal Assistance
Google has been trying to make Gemini more personal and proactive with various integrations.
What Happens to Old Google Assistant Features?
That’s where things get a bit complicated.
Google has been trying to integrate some key Assistant functionalities to Gemini, but Gemini is not the same as Assistant.
As noted, Google explicitly pointed out features like:
- Playing music
- Setting timers
- Acting from the lock screen
as functionalities that it was integrating into Gemini’s mobile experience.
As a result, some Assistant functionalities might behave in a different way within Gemini.
Availability of certain features might also vary depending on the device and location.
If you have a specific Assistant command that you use extensively, make sure that it is available in Gemini as well.
Gemini for Home and Nest Devices
The case of your smart speaker is unique.
Google launched a product called Gemini for Home. Gemini for Home is an AI-based voice assistant created specifically for Google Home and Nest devices.
According to Google, Gemini for Home brings more intuitive control over smart home devices, information acquisition, and task performance. Early access was granted to select users and regions, but full-scale release will come with time.
Thus, the shift from Google Assistant to Gemini is not:
Google Assistant → Gemini across all devices immediately.
Rather, Google is building Gemini-powered experiences for distinct components of its ecosystem
Gemini for mobile devices is the primary assistant.
Gemini for Home is being introduced for the home experience.
What About Android Auto?
The transition should not be overlooked by drivers either.
According to the Android Auto user guide published by Google, you will be able to interact with Gemini or Google Assistant via your system that supports the transition.
Here are examples of actions that Gemini can perform:
- Place calls
- Send messages
- Get directions
- Play music
Google additionally recommends the use of Gemini Live to have more natural interactions while driving.
Remember that you should focus on the road. While an AI assistant can deal with your requests, it cannot take care of the steering wheel for you.
What About Smartwatches?
Google wants to implement Gemini in smartwatches too.
According to the current support documentation by Google, you will be able to use Gemini on some watches that run on Wear OS 4.0 or newer while Google Assistant will still be available on some compatible watches. The availability may vary depending on the device, language, and country.
This proves that the transition from Assistant to Gemini should not be considered as just one single change.
Google is progressively changing the assistant experience within its entire ecosystem.
Do Users Have To Use Gemini?
It depends on the device and the stage of the rollout process.
Current documentation from Google says that users have the option to switch between Gemini and Google Assistant in the settings menu of the Gemini app.
Nevertheless, the transition of Google means that legacy Assistant will become less available as Gemini replaces it on more devices.
Hence, if your device shows Google Assistant, it doesn't necessarily mean that Google has dropped its efforts to transition to Gemini.
Your device or account just hasn't reached the stage of the rollout yet.
Is Gemini Better Than Google Assistant?
From the point of view of conversational AI, Gemini is a much more advanced product.
It understands more sophisticated prompts, discusses images and files and holds longer conversations.
However, the question of which AI is better depends on your needs.
In case the only prompt you give your assistant is:
"Set a timer for 10 minutes."
You really don't need a sophisticated discussion of philosophical implications of time with a PhD.
Nevertheless, if you need to understand some complicated concept, brainstorm ideas, analyze information or discuss an image, the possibilities of Gemini will be very helpful.
Accuracy Considerations for Users
Though Gemini is better than the conventional command-driven assistant, this does not imply that the responses will always be accurate.
Google advises its users that AI-generated responses may sometimes be inaccurate or inappropriate. The experimental Assistant features from Google come with a caution against taking any professional advice from AI responses.
Such advice continues to be relevant.
AI-driven assistants generate answers that are convincing even when they are wrong.
Users need to confirm critical information by consulting credible sources.
Wrong but confident is still wrong, and AI simply says it with perfect grammar.
Privacy and Personal Information
In transition from a classic assistant to a generative AI assistant, concerns about privacy arise.
Gemini can work with Google products and, depending on how you use the features, may process information from your communication with the app and other linked services.
Google offers you the ability to manage Gemini Apps Activity and your account settings.
It is recommended that users study their privacy settings and be aware of the information that is made available to AI assistants.
It is especially crucial since personalization of assistants becomes increasingly common.
The better the assistant gets, the more carefully the user needs to decide about the sharing of information.
Implications for the Future of Android
The move from Assistant to Gemini is a much more significant transformation compared to merely changing one application for another.
Google is essentially rethinking the whole concept of what an AI assistant should do.
In the old model, it was:
Command → Action
But the new model will try to achieve:
Conversation → Understanding → Reasoning → Action
It might eventually help AI assistants perform complex tasks spanning multiple apps.
Google’s 2025 Gemini announcements have been hinting at proactively helpful services with personalization features, while Google continues to work on the agent model.
This might result in a future where an assistant on your phone will no longer be merely a voice-enabled search box, but a sophisticated interface to your entire digital life.
Frequently Asked Questions
Google is shifting from Google Assistant to Gemini on most mobile devices. Yet, Google Assistant still exists on some other devices and services as Google moves through the transition process.
Yes. As Google states, Gemini will replace Google Assistant on most mobile devices in its transition to a more advanced AI-assistant service.
Yes, Google claims that "Hey Google" is a trigger phrase for Gemini in case the function is enabled on a particular device.
Google is introducing Gemini for Home as a new generation of the voice assistant on Google Home and Nest devices. The launch is gradual, depending on the specific device and country.
Gemini offers some free features of the service; however, there are paid options providing extra AI features.
Final Conclusion
The shift from Google Assistant to Gemini can be considered one of the major shifts in the approach of Google toward its assistant since the introduction of Assistant in 2016.
From the users' perspective, it is important to remember that Google does not simply replace the existing assistant with a chatbot but rebuilds the entire assistant experience based on generative AI.
In particular, Gemini will become the main assistant on most Android smartphones. Gemini will also come to cars, watches, and other products while Gemini for Home will bring this technology to speakers and displays.
The greatest advantages include natural dialogues, better management of complex requests, multimodality, and advanced AI assistance.
However, the downside of this approach is the unpredictability of Gemini in contrast to the reliable Google Assistant that most people got used to. Certain aspects will become different, availability is not guaranteed, and AI answers need to be double-checked with common sense.
For the vast majority of Android users, the future of Google's virtual assistant is undoubtedly Gemini.
The previous Assistant was doing well until now. However, Google is convinced that a new generation of assistants should not simply wait for the command, but understand users' intentions.
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