This is pretty intense. The litter robot auto-sifts and removes your cat's waste moments after they exit the box (depositing it in a separate trash bag-lined compartment). It then replaces it with fresh litter. This is perfect for people that are frequently away from their home or don't want to deal with the sometimes messy sifting process.
A bit too high tech for a litter box, but id get it. It sifts away waste almost immediately refilling with kitty litter