Great news! This hub and accessory
          combination is directly compatible
        
      You can see the instructions for this connection using this instruction link
The Amazon Echo Dot (4th Generation) can connect directly to the iRobot Roomba 675. This is done using the shared Wi-Fi connection between the two devices.
Interface Compatibility
|  Amazon Echo Dot (4th Generation) |  iRobot Roomba 675 | |
|---|---|---|
| Amazon Alexa | Yes | Yes | 
| Apple HomeKit | No | No | 
| Google Assistant | No | Yes | 
Connection Compatibility
|  Amazon Echo Dot (4th Generation) |  iRobot Roomba 675 | |
|---|---|---|
| Amazon Sidewalk | No | No | 
| Bluetooth | Yes | No | 
| Clear Connect | No | No | 
| Thread | No | No | 
| Wi-Fi | Yes | Yes | 
| Z-Wave | No | No | 
| Zigbee | No | No | 

