How to Change Google Assistant to Gemini on Android

This guide shows you how to switch your default mobile assistant from Google Assistant to the Gemini app on Android. You’ll learn the exact steps to install, set, and verify Gemini as your assistant, plus what to do if the change doesn’t stick.

What You’ll Need

• An Android phone or tablet (Android 10 or newer recommended).
• A Google account signed in on the device.
• The Gemini app installed from the Google Play Store (free).
• Stable internet connection for the initial setup.

Step-by-Step

1. Install the Gemini app. Open the Google Play Store, search for “Gemini,â€� and install the official app by Google LLC. If you already have it, make sure it’s updated to the latest version.
2. Open Gemini and sign in. Launch the app. If prompted, sign in with the Google account you use on the device and accept the terms. The app will show a welcome screen and a “Get started� button.
3. Set Gemini as your assistant. On the welcome screen, tap “Use Gemini� or “Get started�. The app will ask for permission to act as your default assistant. Tap “Allow� or “Set as default�.
4. Confirm the switch. A system dialog may appear asking “Use Gemini instead of Google Assistant?� Tap “OK� or “Use Gemini�. You should see a confirmation that Gemini is now your default assistant.
5. Verify via the Assistant settings. Open your device’s Settings app, scroll to “Apps� (or “Apps & notifications�), then tap “Default apps� (or “Advanced� > “Default apps�). Look for “Digital assistant� or “Assistant� and confirm it shows “Gemini�. If not, tap it and select Gemini from the list.
6. Test it. Press and hold the home button or swipe diagonally from the bottom corner (depending on your navigation mode). Gemini should open. Try a voice command like “Hey Google, what’s the weather?� to see the Gemini interface respond.

Common Mistakes

• Not updating the app: An outdated Gemini version may not support the assistant switch. Always update via Play Store.
• Skipping the permission dialog: If you dismiss the “Set as defaultâ€� prompt, the switch won’t happen. You can redo it in Settings.
• Confusing “Hey Googleâ€� with the assistant: Even if “Hey Googleâ€� works, the assistant might still be Google Assistant. Check the default app setting.
• Assuming it works on all devices: Some older or heavily customized Android skins (like certain Samsung or Xiaomi models) may not fully support switching. Use the Settings method instead.

Tips

• Use the same Google account everywhere: Make sure the Gemini app and your device are on the same account to avoid sync issues.
• Keep both apps installed: You can switch back to Google Assistant anytime by going to the same default apps settings and selecting “Google.â€�
• Explore Gemini’s features: Gemini can do everything Assistant did, plus more advanced AI tasks like generating text or analyzing images. Try long-pressing the home button to see its full interface.
• If you have a Pixel, check the Pixel Launcher: Some Pixel devices have an extra “Googleâ€� settings page where you can manage assistant preferences.

Troubleshooting

Gemini isn’t showing as an option in Default apps: Make sure the Gemini app is installed and updated. If it’s still missing, restart your phone and try again. Some devices need a moment to recognize newly installed apps.

The switch worked but pressing home opens Assistant: This usually means the default didn’t save. Go to Settings > Apps > Default apps > Digital assistant and select Gemini manually. If it reverts, check if any “battery saver� or “app manager� is restricting the Gemini app.

“Hey Google� still triggers Assistant: That’s normal. The hotword may still be tied to Google Assistant. To change it, open the Google app, go to Settings > Google Assistant > “Hey Google & Voice Match,� and disable it. Then enable it again while Gemini is the default.

Gemini crashes or won’t open: Clear the app’s cache: Settings > Apps > Gemini > Storage > Clear Cache. If that doesn’t help, uninstall and reinstall the app, then repeat the setup steps.

Some voice commands don’t work: Gemini is still evolving. Basic commands like alarms, calls, and questions should work, but some third-party integrations may not be supported yet. Use the on-screen keyboard as a fallback.

Frequently Asked Questions

Q: Do I need to root my phone to switch?
A: No. The switch is done entirely through system settings and the Gemini app.

Q: Will I lose my Assistant routines?
A: Yes, Gemini doesn’t support Google Assistant routines yet. You’ll need to recreate them in Gemini’s “Automations� feature if available.

Q: Can I use both Assistant and Gemini at the same time?
A: Not as the default. You can switch back and forth, but only one can be the system assistant at a time.

Q: Does Gemini work with Android Auto or smart home devices?
A: Basic actions like navigation and calls may work, but full smart home control is still limited. Check the Gemini app’s supported features list.

Q: Is Gemini available in all countries?
A: No, Gemini’s availability varies by region. If it’s not in your Play Store, you can’t use it as the assistant.

Q: How do I switch back to Google Assistant?
A: Go to Settings > Apps > Default apps > Digital assistant and select “Google.� You may need to re-enable Google Assistant in the Google app settings.

Related

• Remote Desktop on Chromebook: Setup Guide
• Fix Google Play Store Errors: Step-by-Step Guide
• Fix Overheating iPhone iOS 11: 12 Proven Ways