Yes, you can have as many Drive One devices associated with your account as you like. 

  • Add a new device
  • Start the Drive One app
  • Select the menu icon (top right corner of the map, looks like a gearwheel)
  • Select “Device” from the menu
  • On this list, you can see what devices have been added to your account.
  • If you want to add a new device, click on the + icon at the bottom of the page and then follow the instructions for adding a new Drive One device.