Update ***
After researching the SL60D and the SL61 ,
Since they were both upgraded to 4000Pa suction , The only difference is that the SL60D has 2 side brushes as opposed to 1 and a Glass front panel as Opposed to plastic. The only advantage of the SL61 seems to be a very slightly longer runtime . 130mins as opposed to 120mins .
Taking all this into consideration,
The SL60D seems like a better option ( the first link ) as opposed to the SL61 (the third link ) ,. Hope this clarifies some things for everyone.
From the Official Lubluelu Ebay Store .
This to me is a better deal than the Amazon one.
The Lubluelu SL60D Robot Vac LDS Laser Robovac $248.17 with eBay Plus
Check out Lubluelu Robot Vacuum Cleaner and Mop LDS Laser Navigation Sweeping Robot 4000Pa on eBay!
https://www.ebay.com.au/itm/354836199638
The Auto Waste transfer station $156.17 with eBay plus .
Check out Lubluelu Original SL60D/SL61 Auto-Empty Dock Station Automatic Dust Collection on eBay!
https://www.ebay.com.au/itm/355100298415
Check out Lubluelu SL61 WIFI Robot Vacuum Cleaner and Mop 4000Pa LiDAR Navigation Mapping on eBay!
https://www.ebay.com.au/itm/355383969141
Cheers
lol