PETKIT Purobot Ultra

The most feature-dense automatic litter box sold in Australia, with the lowest step-up, the only published noise figure, and the only running cost in the category that cannot be worked out from published information.

Prices and specifications checked 5 September 2026

The numbers

What it does better than anything else

• The lowest step-up at about 26.5cm. Nine centimetres lower than the CATLINK, which is the difference between a comfortable step and a jump for an arthritic or elderly cat.
• The only published noise figure. Under 35dB. Whether that is measured the way you would measure it is unknown, but it is a commitment, and the alternative in this category is "virtually silent" with nothing behind it.
• A litter rule stated in millimetres. Under 12mm long, under 3mm wide. Every other brand gives you a list of types and leaves you guessing about the bag in front of you.
• Cheaper than the Litter-Robot by several hundred dollars, with more sensors and a bigger feature list.

What we hold against it

• The subscription. The camera, the livestream and the AI health tracking are the reasons to choose this over a cheaper drum, and they sit behind PETKIT Care+. Part of a A$1,199 purchase is a rental.
• The unpriced refill rings. The auto-packing, which is the mechanical selling point, requires a consumable with no published price or pack size in Australia. You cannot know what this box costs to own.
• A camera pointed at a litter box, streaming offshore. Some buyers will not care and some will care a great deal. It is worth deciding which you are before you buy the model whose value depends on it.
• Price inconsistency between authorised sellers, A$1,099 to A$1,199 on the same day, which suggests the RRP is soft and worth negotiating around.

Who should buy it

Buy it for the step-up height. If your cat is old, small, arthritic or recovering, the 26.5cm entry is a genuine functional advantage over both rivals and it is the reason to choose this box.

Do not buy it for the camera unless you have decided the subscription is acceptable indefinitely, and do not buy it if you want to know what it will cost you over five years, because on published information you cannot. Compare it against the alternatives on the three-way comparison.

Common questions

How much is the PETKIT Purobot Ultra in Australia?

Between A$1,099 and A$1,199 across Australian sellers, against an RRP of A$1,399, checked 5 September 2026. The spread between authorised sellers on the same day is unusually wide in this category, so it is worth checking two or three.

Do you need a subscription for the PETKIT Purobot Ultra?

For the features it is sold on, yes. The AI camera, the livestream and the health tracking sit behind PETKIT Care+. The box still scoops without it, but a meaningful part of what the sticker price bought is rented rather than owned, and PETKIT does not publish an Australian dollar price for the subscription.

What litter can I use in a PETKIT Purobot Ultra?

Tofu, bentonite clay and mixed litters, with the exclusion stated by size rather than type: nothing longer than 12mm or wider than 3mm. That is the clearest and most useful compatibility rule in the category, because it tells you what to measure instead of which brands to trust.

What does the PETKIT Purobot Ultra cost to run?

We cannot tell you, and that is the finding. The auto-packing needs PETKIT's own refill rings, and neither PETKIT Australia nor the Australian resellers we checked publish a price or pack size for them. It is the only model we track whose running cost cannot be calculated from published figures.