Set up and use Google Assistant or Amazon Alexa with SmartThings
There's an even better way to use your SmartThings devices - with Google Assistant and Amazon Alexa. You'll be able to control SmartThings devices such as the Smart Plug around your smart home with nothing but your voice.
Note: For security reasons, Amazon Alexa will only support Routines with lighting, switch, and thermostat devices.
Set up Google Voice
Before you can have Google Assistant control your SmartThings devices, you need to set up Google Assistant in general.
On your phone, open Settings, and then search for and select Voice Match.
To turn on Voice Match, tap Get Started under Hey Google.
Tap Next, and then tap I Agree.
View the on-screen instructions, and then tap Continue. Now, if you say "Hey Google" even if your screen is off, you can access your Assistant.
To turn off Voice Match, simply tap the switch next to it.
Connect and use Google Assistant with SmartThings
To begin your Google smart home journey, you'll need to link the SmartThings app and Google Assistant together. Once linked, Google Assistant will be able to control any permitted SmartThings devices.
On your phone, touch and hold Home to launch Google Assistant. Then, swipe up to open the dashboard.
Tap the Options icon (your account picture), and then swipe to and tap Devices.
Tap Add a device.
Tap Link a device, and then search for and select SmartThings. Next, sign into your Samsung account.
Tap the drop-down menu, and select your desired location for Google Assistant to connect to (i.e. Home, Office, etc.).
Tap Authorize. All of your connected devices in SmartThings should link up to your Google Assistant. Now, test it out to see if it works.
Touch and hold Home to launch Google Assistant, and then say a command. For example, you could say "Turn off the Smart Plug."
Note: Google Assistant will only be able to control the devices that are registered to the SmartThings location you choose.
Edit which devices Google can access
If you don't want Google Assistant to control all of your connected devices, you can edit which devices it can access.
Navigate to and open the SmartThings app.
Tap Menu (the three horizontal lines), tap the Settings icon in the top right, and then tap Connected services.
Tap Google, and then tap the switch next to "Allow Google Assistant to access all devices, Scenes, and Routines." Select and deselect the devices you want Google Assistant to access.
When you're finished, tap Done.
Disconnect Google Assistant from SmartThings
You can remove Google from SmartThings at any time if you're no longer using it.
Open the SmartThings app, and tap the Menu tab (the three horizontal lines).
Then, tap the Settings icon in the top right, and tap Linked services.
Next, tap More options (the three vertical dots), and then tap Delete. Tap the red minus sign next to Google, and then tap Delete to confirm.
Set up Amazon Alexa with SmartThings
The SmartThings app works with Amazon Echo, Echo Dot, and Amazon Tap smart speakers. Alexa can be used to control light bulbs, on/off switches, dimmer switches, thermostats, locks, and Routines configured with SmartThings. Alexa can also check the status of motion and contact sensors.
But first, you'll need to connect the Alexa app to SmartThings.
To begin, download the Amazon Alexa app, and then set up your Amazon Alexa device.
Open the Alexa app; if needed, verify your account and allow the different persmissions.
Tap the Devices tab, and then swipe to and tap YOUR SMART HOME SKILLS.
Tap ENABLE SMART HOME SKILLS, and then tap the Search icon in the top right.
Next, search for and select SmartThings, and then tap ENABLE TO USE.
Log in and authorize SmartThings using your Samsung or SmartThings account. Then, tap AUTHORIZE.
Once authorized, you can tap CLOSE to begin the device discovery process. Read the next section to learn how to have Alexa discover compatible devices.
Discover devices and use them with Amazon Alexa
The Alexa app will automatically discover devices that are set up in your home or office.
Tap DISCOVER DEVICES after authorizing your Location, and then wait for the device discovery process to be complete. This can take up to 45 seconds. Discover Devices will also discover your scenes and routines.
When the discovery process is finished, tap NEXT. Select your desired device from the list, tap SET UP DEVICE, and then tap CONTINUE. Repeat these steps to add other discovered devices. Once you've added the available devices, they'll appear under the Device tab in the Alexa app.
If the Alexa app does not start discovering devices, you will need to manually add the devices. In the Devices tab, tap Add (the plus sign) in the top right, and then tap Add Device.
Search for or select the device you want to add, and then tap SmartThings.
Finally, tap DISCOVER DEVICES and wait for the device discovery process to complete.
Once everything is registered, you can use the Alexa app to automate devices, scenes, and routines by tapping the name or icon of your desired option.
Edit devices for Amazon Alexa
Note: You cannot select individual SmartThings ADT, routines, or scenes. You can only choose all or no SmartThings ADT, routines, and scenes.
If needed, you can add or remove devices in the Alexa app after the initial setup.
Navigate to and open the SmartThings app.
Tap Menu (the three horizontal lines), tap the Settings icon in the top right, and then tap Connected services.
Tap Amazon Alexa, and then tap the switch next to "Allow Alexa to access all devices, Scenes, and Routines." Select and deselect the devices you want Alexa to access.
When you're done, tap Next, and then tap Done.
When a device's access is removed, Alexa will automatically refresh the list of accessible devices within two hours. However, prompting the discovery will refresh the list immediately. To do this, say “Alexa, discover devices.” Wait for Alexa to confirm that the discovery is complete (up to 45 seconds), and then tap Done.
Disconnect SmartThings from Amazon Alexa
You can disconnect your devices from Amazon Alexa using either the SmartThings app or the Alexa app.
To disconnect from SmartThings:
Open the SmartThings app, and then tap the Menu tab (the three horizontal lines).
Then, tap the Settings icon in the top right, and tap Linked services.
Next, tap More options (the three vertical dots), and then tap Delete. Tap the red minus sign next to Amazon Alexa, and then tap Delete to confirm.
To disconnect from Amazon Alexa:
Open the Alexa app, and then tap the Devices tab.
Swipe to and tap YOUR SMART HOME SKILLS.
Next, tap SmartThings, tap DISABLE SKILL, and then tap DISABLE.
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