# PETKIT Purobot Ultra Review (2026): Safety, Pros & Cons > PETKIT Purobot Ultra review: tilting drum self-cleaning box for cats 3.3–22 lb. Safety sensors, running costs, pros, cons and our 7.9/10 verdict. - Source: https://selfcleaninglitterboxguide.com/litter-boxes/petkit-purobot-ultra/ - Markdown version: https://selfcleaninglitterboxguide.com/litter-boxes/petkit-purobot-ultra.md - Last updated: 2026-11-12 --- - [Home](https://selfcleaninglitterboxguide.com/) - [Compare litter boxes](https://selfcleaninglitterboxguide.com/litter-boxes/) - PETKIT Purobot Ultra 7.9 ![PETKIT Purobot Ultra](https://selfcleaninglitterboxguide.com/_astro/petkit-purobot-ultra.Ca4bd3Io_ZKM8Ed.webp) PETKIT · Flagship # PETKIT Purobot Ultra Review Owners who want a camera on every visit and never want to touch a waste bag. - Tilting drum - Cats 3.3–22 lb - Clumping litter $$$$ Flagship Price tier: Flagship price tier · see Amazon for today's price [Check price on Amazon](https://www.amazon.com/dp/B0DFYJ29XG?tag=selfcleaninglitterboxguide.com-20)[Safe for my cat?](https://selfcleaninglitterboxguide.com/tools/cat-safety-checker/#model=petkit-purobot-ultra) Opens Amazon in a new tab. By [Self-Cleaning Litter Box Guide Editorial Team](https://selfcleaninglitterboxguide.com/about/) · Updated November 12, 2026 · [How we score](https://selfcleaninglitterboxguide.com/how-we-research/) We haven't tested this box ourselves. Our score comes from maker specs and manuals, named hands-on reviews and owner reports; where a test result appears, we name the outlet. ## The verdict The Purobot Ultra is the gadget pick: it bags its own waste and films every visit, and WIRED found it kept odors down without trouble. For most homes, though, the camera adds more novelty than health insight, the arm makes refilling awkward, and the running costs are proprietary. The Purobot Max Pro 2 gives you the camera with a larger entry for less money. ### What we like - Auto-seals full bags and loads a new one - Camera with night vision, two-way audio and stool snapshots after each cycle - Multi-cat facial recognition and usage logs - WIRED (8/10) found it worked well and kept smells at bay ### Watch out for - WIRED: hard to refill with litter because of the camera arm, and "kind of cramped" - Camera video is black-and-white and low detail (WIRED) - 46 lb and about 33 in tall - Proprietary bag rings and odor refills ## Score breakdown Cat safety 8.4 Cleaning & odor 8.8 Ease & reliability 7.2 Value 6.6 Tilting drum · cats 3.3–22 lb · Weight, Proximity, Camera ## Purobot Ultra specs | Brand | PETKIT | | --- | --- | | Mechanism | Tilting drum | | Cat weight (automatic mode) | 3.3–22 lb | | Minimum age | 6 months (maker guidance) | | Cats per box | The maker gives no number | | Kittens & small cats | PETKIT recommends it for cats 6+ months old and at least 3.3 lb. | | Safety sensors | Weight, Proximity, Camera. Weight and proximity sensors plus an AI camera on a swiveling arm that tracks the cat (PETKIT, WIRED). | | Entrance during cleaning | Not confirmed by the maker or a named review | | Litter | Clumping. Clumping litter; PETKIT sells tofu and mixed litters for it. | | Waste drawer | Seals the full bag and loads a new one automatically. | | Footprint | 20.87 × 26.77 in, 32.68 in tall | | Unit weight | 46 lb | | App / Wi-Fi | Yes (2.4 GHz and 5 GHz) | | Camera | Yes | | Self-bagging | Yes, seals waste bags automatically | | Odor control | Self-sealing bags plus a proprietary odor eliminator ($20 for three refills, per WIRED). | | Consumables | PETKIT bag rings for the auto-bagger and odor-eliminator refills. PETKIT says its N50 refill is not compatible. Proprietary: the box needs the maker's refills. | | Warranty | 2 years per the Amazon listing | | Price tier | $$$$ Flagship ($800 and up). WIRED's review page showed $800 at Amazon on Nov 12, 2026; Amazon bundle listings showed about $762–$802. | - Dimensions (20.87 × 26.77 × 32.68 in), weight (46 lb) and the 3.3–22 lb / 6+ months guidance come from the Amazon listing. - We couldn't confirm the entry size from PETKIT, so the safety checker can't size it for large cats. Running costs: with our defaults, consumables for one cat come to about $10.97 a month plus litter. See the full breakdown in the [cost calculator](https://selfcleaninglitterboxguide.com/tools/litter-box-cost-calculator/). Specs are compiled from manufacturer pages, Amazon listings and independent reviews and can change between production runs. Confirm the weight range and what's in the box on the Amazon page before buying. We haven’t tested the PETKIT Purobot Ultra ourselves. This review draws on WIRED’s full review, which gave it 8 out of 10, and its automatic litter box roundup, plus the Amazon listing for specs. The Purobot Ultra is PETKIT’s gadget flagship. It’s a front-entry drum that sifts waste, seals the full bag and loads a new one by itself, and films every visit with an AI camera on a swiveling arm. WIRED’s review page showed $800 at Amazon on November 12, 2026, and Amazon bundle listings ran about $762–$802. [Check the price](https://www.amazon.com/dp/B0DFYJ29XG?tag=selfcleaninglitterboxguide.com-20) before you buy. ## Who it’s for (and who should skip it) It’s for owners who want a camera on every visit and never want to handle a waste bag. If self-bagging matters to you, this is the PETKIT that does it. WIRED found it worked well and kept smells at bay. Skip it if you want the best value from PETKIT. The [Purobot Max Pro 2](https://selfcleaninglitterboxguide.com/litter-boxes/petkit-purobot-max-pro-2/) gives you a camera and a published 10.51 × 10.74 in entry for about $250–$300 less, and it’s WIRED’s current top pick. Skip it too if you lift litter in and out often, because WIRED found it hard to refill. If you mainly want a self-bagging box at a lower price, read our [Furbulous review](https://selfcleaninglitterboxguide.com/litter-boxes/furbulous-self-packing/) first, as a warning rather than a recommendation. ## How it cleans, and how safe it is PETKIT and WIRED say weight and proximity sensors work alongside the camera, which sits on a swiveling arm that tracks the cat. PETKIT recommends it for cats 6 months and older that weigh at least 3.3 lb. Two safety points remain open. First, whether the entrance stays open through the whole cycle is not confirmed: neither PETKIT nor a named review in our sources states it for the Ultra. Second, we couldn’t confirm the entry size, so our [cat safety checker](https://selfcleaninglitterboxguide.com/tools/cat-safety-checker/#model=petkit-purobot-ultra) can check weight and age but can’t size the entry for a large cat. WIRED’s description of the interior as “kind of cramped” suggests big cats may be better off elsewhere. For the background on why entrance design matters, read [are self-cleaning litter boxes safe?](https://selfcleaninglitterboxguide.com/posts/are-self-cleaning-litter-boxes-safe/). ## Living with it ### Auto-bagging This is the Ultra’s main selling point. When the bag is full, the box seals it and loads a new one, so emptying means lifting out a sealed bag. That’s genuinely less handling than any other box we cover except the Furbulous, which cats.com found unreliable. ### The camera The camera offers night vision, two-way audio and stool snapshots after each cycle, and it recognizes multiple cats by face. WIRED found the video black-and-white and low detail, and the analytics flat. It’s fun to check, but don’t buy it expecting a vet-grade health monitor. ### Refilling and size WIRED found it hard to refill with litter because of the camera arm. The box is 20.87 × 26.77 × 32.68 in and weighs 46 lb, far heavier than any other box we have a weight for. Measure the space, including height, before you order, and place it somewhere you won’t need to move it. It connects on both 2.4 GHz and 5 GHz Wi-Fi. ### Litter It uses clumping litter, and PETKIT sells tofu and mixed litters for it. See [best litter for self-cleaning litter boxes](https://selfcleaninglitterboxguide.com/posts/best-litter-for-self-cleaning-litter-boxes/). ## Running costs The Ultra’s consumables are proprietary. The odor eliminator costs $20 for three refills (WIRED), about one a month. We couldn’t confirm the bag-ring price, so our cost model uses Whisker’s $1-per-liner price as a stand-in at PETKIT’s suggested change rate of about 4.3 per cat per month. Litter is Dr. Elsey’s Ultra at $22.99 for 40 lb from Chewy, at 10 lb per cat per month. That’s about $16.71 a month, or roughly $201 a year, for one cat. Over five years, with the box at $800, we estimate about $1,803 for one cat and about $2,406 for two. Because the bag-ring price is a stand-in, treat those totals as rough. Enter your own figures in the [cost calculator](https://selfcleaninglitterboxguide.com/tools/litter-box-cost-calculator/). ## What you’ll need beyond the box - **Bag rings and odor refills:** buy PETKIT’s own, made for the Ultra. PETKIT says its N50 refill doesn’t fit, and the standard PETKIT bag rolls are for the PuraMax 2 and Max Pro, not the Ultra’s auto-bagger. - **Litter:** [Dr. Elsey’s Ultra unscented, 40 lb](https://www.amazon.com/dp/B0009X29WK?tag=selfcleaninglitterboxguide.com-20), or PETKIT’s tofu or mixed litter. - **Mat:** a [Gorilla Grip 35 × 23 in mat](https://www.amazon.com/dp/B07HKN7HMP?tag=selfcleaninglitterboxguide.com-20). The Amazon listing gives a two-year warranty. ## Bottom line The Purobot Ultra is for gadget lovers. It bags its own waste and films every visit, and WIRED rated it 8 out of 10 and found it kept odors down. For most homes, though, the camera adds more novelty than health insight, the arm makes refilling awkward, it’s huge, and the running costs are proprietary. We’d steer most people to the Purobot Max Pro 2, which has the camera and an entry WIRED’s 17-lb cat used easily, for less, or the [Litter-Robot 4](https://selfcleaninglitterboxguide.com/litter-boxes/whisker-litter-robot-4/) at a lower price than the Ultra. If self-bagging is the feature you can’t live without, it’s the better of the two self-bagging boxes we cover. See how it ranks in [best self-cleaning litter boxes of 2026](https://selfcleaninglitterboxguide.com/posts/best-self-cleaning-litter-boxes-2026/), or [check the Purobot Ultra price](https://www.amazon.com/dp/B0DFYJ29XG?tag=selfcleaninglitterboxguide.com-20). Ready to buy? · 7.9/10 PETKIT Purobot Ultra $$$$ Flagship Price tier: Flagship · Tilting drum · cats 3.3–22 lb [Check price on Amazon](https://www.amazon.com/dp/B0DFYJ29XG?tag=selfcleaninglitterboxguide.com-20) ## Litter and supplies for the Purobot Ultra Litter, liners, odor refills and mats sold on Amazon that fit this box. Check the listing confirms your exact model before you buy. - Litter**Dr. Elsey's Ultra unscented clumping clay cat litter, 40 lb**Compatible, third-partyUnscented, hard-clumping, standard-weight clay: the type Whisker recommends and most globe and drum boxes are tuned for. Not for ScoopFree crystal trays. Check your box's sifter: PETKIT asks for granules under 0.5 in.[Check price](https://www.amazon.com/dp/B0009X29WK?tag=selfcleaninglitterboxguide.com-20) - Litter mat**Gorilla Grip cat litter mat, 35 × 23 in**Universal fitBig enough to catch scatter from most globe boxes; textured backing stays put.[Check price](https://www.amazon.com/dp/B07HKN7HMP?tag=selfcleaninglitterboxguide.com-20) - Litter mat**Gorilla Grip cat litter mat, extra large, 40 × 28 in**Universal fitThe size we'd put under open-top boxes, which both WIRED and Tom's Guide found fling more litter.[Check price](https://www.amazon.com/dp/B08QNCB6YF?tag=selfcleaninglitterboxguide.com-20) - Litter mat**iPrimio jumbo cat litter trapper mat, 32 × 30 in**Universal fitHoneycomb two-layer mat with a waterproof layer, for cats that kick litter far.[Check price](https://www.amazon.com/dp/B01AUU90IW?tag=selfcleaninglitterboxguide.com-20) Compatibility checked November 2026. More in our [litter and supplies guide](https://selfcleaninglitterboxguide.com/accessories/). ## Featured in our guides - [Best Self-Cleaning Litter Box With Health Monitoring: Weight, Visit and Camera Tracking Compared](https://selfcleaninglitterboxguide.com/posts/best-self-cleaning-litter-box-with-health-monitoring/) - [PETKIT Purobot Ultra vs Litter-Robot 5: Self-Bagging Camera Box or Big-Cat Globe?](https://selfcleaninglitterboxguide.com/posts/petkit-purobot-ultra-vs-litter-robot-5/) ## Purobot Ultra FAQ ### Can kittens use the Purobot Ultra? PETKIT recommends it for cats at least 6 months old and 3.3 lb, per the Amazon listing. Keep automatic cleaning off and use a regular box until a kitten meets both conditions. ### What bags and refills does the Purobot Ultra use? It uses PETKIT's own bag rings for its auto-bagger and a proprietary odor eliminator, which WIRED priced at $20 for three refills. PETKIT's standard bag rolls and its N50 refill don't fit the Ultra. ### Is the Purobot Ultra's camera worth it? It records visits, takes stool snapshots after each cycle, offers two-way audio and night vision, and recognizes cats by face. WIRED found the video black-and-white and low detail, and the analytics flat. For most homes it's more novelty than health insight. ### How big is the Purobot Ultra? It's large: 20.87 × 26.77 × 32.68 in and 46 lb, per the Amazon listing. PETKIT rates it for cats from 3.3 to 22 lb, but WIRED found it kind of cramped inside, and we couldn't confirm the entry size. ## Sources - [amazon.com](https://www.amazon.com/dp/B0DFYJ29XG?tag=selfcleaninglitterboxguide.com-20) - [wired.com](https://www.wired.com/review/petkit-purobot-ultra-automatic-cat-litter-box/) - [wired.com](https://www.wired.com/gallery/best-automatic-cat-litter-boxes/) Not sold yet? ## Alternatives to the Purobot Ultra ![Casa Leo Leo's Loo Too](https://selfcleaninglitterboxguide.com/_astro/casa-leo-leos-loo-too.ulfQbOzG_woviz.webp) ### [Casa Leo Leo's Loo Too](https://selfcleaninglitterboxguide.com/litter-boxes/casa-leo-leos-loo-too/) 7.8 - Tilting drum - 1–20 lb Small apartments with small or medium cats where litter scatter is the main complaint. $$$$ Premium Price tier: Premium typical street price; check Amazon for today's [Check price on Amazon](https://www.amazon.com/dp/B09LL9S99B?tag=selfcleaninglitterboxguide.com-20)[Read the full review](https://selfcleaninglitterboxguide.com/litter-boxes/casa-leo-leos-loo-too/) ![Whisker Litter-Robot 5](https://selfcleaninglitterboxguide.com/_astro/whisker-litter-robot-5.JMut0Qu8_EdAxV.webp) ### [Whisker Litter-Robot 5](https://selfcleaninglitterboxguide.com/litter-boxes/whisker-litter-robot-5/) 8.5 - Rotating globe - 3–30 lb - Up to 5 cats Big and multi-cat households (up to five cats, up to 30 lb) that want health data on top of hands-off scooping. $$$$ Premium Price tier: Premium typical street price; check Amazon for today's [Check price on Amazon](https://www.amazon.com/dp/B0HN8C8TFM?tag=selfcleaninglitterboxguide.com-20)[Read the full review](https://selfcleaninglitterboxguide.com/litter-boxes/whisker-litter-robot-5/) ![PetSafe ScoopFree SmartSpin Self-Cleaning Litter Box](https://selfcleaninglitterboxguide.com/_astro/petsafe-scoopfree-smartspin.BIyzfviQ_Z2dYtaz.webp) ### [PetSafe ScoopFree SmartSpin Self-Cleaning Litter Box](https://selfcleaninglitterboxguide.com/litter-boxes/petsafe-scoopfree-smartspin/) 7.9 - Tilting drum - 2.5–25 lb Owners who want a big-brand globe box with app tracking under $400. $$$$ Mid-range Price tier: Mid-range typical street price; check Amazon for today's [Check price on Amazon](https://www.amazon.com/dp/B0D4GHS7V6?tag=selfcleaninglitterboxguide.com-20)[Read the full review](https://selfcleaninglitterboxguide.com/litter-boxes/petsafe-scoopfree-smartspin/) [Compare all 14 litter boxes →](https://selfcleaninglitterboxguide.com/litter-boxes/) ## Helpful guides [Top picks ### The 8 Best Self-Cleaning Litter Boxes of 2026, Ranked for Safety and Value The best self-cleaning litter boxes of 2026, ranked: Litter-Robot 4, PETKIT PuraMax 2, Purobot Max Pro 2, Neakasa M1 and more, with safety and cost notes. Updated Nov 12, 2026](https://selfcleaninglitterboxguide.com/posts/best-self-cleaning-litter-boxes-2026/)[Multi-cat ### The Best Self-Cleaning Litter Box for Multiple Cats in 2026 The best self-cleaning litter boxes for two to five cats: maker cat limits, real drawer capacity, weight-based cat ID, and why the n+1 box rule still applies. Updated Nov 12, 2026](https://selfcleaninglitterboxguide.com/posts/best-self-cleaning-litter-box-for-multiple-cats/)[Large cats ### The Best Self-Cleaning Litter Box for Large Cats in 2026 The best self-cleaning litter boxes for big cats, compared on what matters: maker weight limits, entry size, interior height, step-up height and open tops. Updated Nov 12, 2026](https://selfcleaninglitterboxguide.com/posts/best-self-cleaning-litter-box-for-large-cats/) Purobot Ultra $$$$ Flagship Price tier: Flagship [Check price](https://www.amazon.com/dp/B0DFYJ29XG?tag=selfcleaninglitterboxguide.com-20)