PETKIT Purobot Crystal Duo (automatic litter box with an open tray for cats): our review

A cat should not need a running start to reach the litter. The Purobot Crystal Duo has an entry threshold of 18 cm, a low step that should make access easier for a senior cat whose legs have become less cooperative. Its open format also leaves the approach uncovered. Does your cat step smoothly into the current box, or pause and shift its weight before climbing in?

Access comes before automation. The manufacturer specifies a minimum cat weight of 1.5 kg; a growing kitten below that limit must not use automatic mode. Small, medium, and large cats are included in the stated size categories, but those categories do not override the weight requirement. For an older cat, the lower entrance is a practical reason to consider this model, even before you think about the chores it might simplify.

The replaceable litter tray and disposable waste bin belong on your recurring supplies list. Automatic cleaning still leaves a supply cupboard to manage. When the neighbor stops by to feed your cat during vacation, leave clear instructions about those parts. A disposable container needs someone to remove it and fit its replacement; the word “automatic” cannot carry that container outside.

Coming home with a suitcase while your cat requests dinner is enough activity without finding that the necessary supplies have run out. Keep replacements within reach of whoever handles upkeep. That arrangement matters more than a vague hope of leaving the litter box alone all weekend. We would choose this model for a household comfortable with that replacement routine; anyone seeking freedom from buying and storing litter box consumables should reconsider what convenience means here.

A stray patch of litter behind the box has a talent for becoming visible just when you have put the cleaning supplies away. At 5.65 kg, this is a unit that should be easy to move by yourself. That matters when you need to reach the floor around it, rather than merely wipe the accessible edge and promise to return later.

We like the practical combination of manageable weight and a replaceable litter tray. The floor still needs you. For a household where the box shares bathroom space with bath mats and a trash can, being able to shift the appliance is useful. Choose a spot where you can move the box without first rearranging the bathroom. Leave yourself room to work around the box when choosing its spot.

The visit counter and visit duration tracking can help you notice changes in your cat's usual bathroom routine. What happens if visits become more frequent or start lasting longer? Bring those changes to your veterinarian. A record of visits can inform that conversation; it cannot provide a diagnosis. These functions should support your attention to your cat rather than replace it.

PETKIT also advertises presence detection and an automatic stop when a cat is detected. Those are manufacturer claims about how the mechanism responds, never a guarantee of safety. Follow the manufacturer's gradual transition instructions: initially leave the unit switched off or in manual mode for a few days, with the previous litter box beside it. Giving your cat a familiar option makes the change less abrupt while you introduce a different bathroom routine.