'It’s expensive af, but I love my Litter Robot more than some relatives. My cat is extremely picky about having a clean box to defecate in, and it’s the best automatic litter box out there. Replacing a tray liner every week instead of scooping every day? Yes, please!' – joys4fb356affThe Litter Robot is £488.95 on Amazon (!!!!). If you want a more budget option, I found this self-cleaning litter box for £29.99 on Amazon (but note that shipping will take 1-2 months).