PETKIT Purobot Crystal Duo review: Best Health Monitoring

The Purobot Crystal Duo is PETKIT’s answer to a real problem: urinary disease in cats is common, expensive, and almost invisible until it is advanced. This open-top automatic litter box puts an AI camera over the tray to watch for early signs, and it costs around ₱12,800 as of August 12, 2026, well under half the price of the Pura X.

Is the health monitoring genuinely useful?

The idea is sound. PETKIT describes it as the first automatic litter box with an AI camera for urinary health monitoring, watching for loose stool and abnormal urine pH and pushing an alert through the app, with FLUTD as the condition it is aimed at. FLUTD is exactly the kind of illness where a few days of early warning changes the outcome and the bill.

Set expectations properly, though. This flags a pattern worth checking, it does not diagnose anything. The right response to an alert is a vet visit, not a conclusion. We cannot independently verify PETKIT’s detection accuracy, and neither can any owner.

Does open-top make a difference?

It is the reason to choose this over the Pura X for a lot of households. The Pura X caps out at 8kg with an 8.6-inch opening in an enclosed drum. This one is open-top, PETKIT points specifically at large breeds like Maine Coons, and the only stated weight rule is a minimum of 1.5kg. The entrance sits about 7 inches off the ground, which is an easier step than the Pura X’s twelve.

Cats that refuse enclosed boxes, and there are plenty, also do better here.

The trade is odor. An open tray between cleaning cycles contains less smell than a sealed drum, which is why PETKIT builds in a fan and an N60 deodorizer.

What is the catch?

The litter. It is built around the PETKIT Crystal Litter Set, and the AI analysis depends on how that specific litter reacts. That ties you to a proprietary consumable for the life of the box, which is a real ongoing commitment rather than a one-off cost.

The second consideration is the camera itself. It is an internet-connected camera in your home, pointed at a corner of a room you live in. That is a fair trade for many people and a dealbreaker for some.

Who should buy it

Buy this if you have a large cat, a cat with a history of urinary trouble, or a breed prone to it, and you want automation with an early-warning system rather than just a motor. It is our Best Health Monitoring pick in the best cat litter boxes in the Philippines roundup. Our cat litter box buying guide covers the open-top versus enclosed decision in more detail.

Alternatives to consider

If your cat is average sized and you would rather have an enclosed drum with four-sensor safety and per-visit weight logging, the PETKIT Pura X is the flagship. If the automation is not the point and you mainly want odor handled, the PETKIT Pura smart litter box does that manually for far less.