The Xiaomi Robot Vacuum X20+ does not support multiple connections, but it can be shared with others.
To enable device sharing for the Xiaomi Robot Vacuum X20+, please refer to the following steps:
Go to the [Mi Home] APP >> [Settings] >> [Share device] >> [Xiaomi Account (Phone) ] >> enter the email address, phone number, or Xiaomi Account ID.
Shared persons can perform basic operations and settings on the robot vacuum, such as starting, pausing, and ending cleaning, as well as adjusting suction power and humidity.