Purobot Max Pro 2 specs
| Brand | PETKIT |
|---|---|
| Mechanism | Tilting drum |
| Cat weight (automatic mode) | 3.3–22 lb |
| Minimum age | 6 months (maker guidance) |
| Cats per box | Recognizes up to 15 cats by face and weight (PETKIT); no recommended cat count published. |
| Kittens & small cats | PETKIT: cats over 3.3 lb and older than 6 months. |
| Safety sensors | Weight, Proximity, Camera. 12 integrated safety sensors plus the camera; the drum stops when a pet is nearby (PETKIT). |
| Entrance during cleaning | Stays open. WIRED's top pick, and WIRED only recommends boxes that stay open during cycling. |
| Litter | Clumping. Most clumping litters with granules under 0.5 in (12 mm) (PETKIT). |
| Waste drawer | 8 L. up to 17 days for one cat (maker claim) |
| Entry | 10.51 × 10.74 in. 10.51 × 10.74 in, 43% larger than the previous generation (PETKIT). |
| Step-in height | About 10 in off the floor |
| Footprint | 25.86 × 21.18 in, 23.74 in tall |
| Unit weight | 24.25 lb |
| Noise | 35 dB (maker claim) |
| App / Wi-Fi | Yes (2.4 GHz and 5 GHz) |
| Camera | Yes |
| Odor control | Sealed, self-sealing bag plus two odor-eliminator cartridges. |
| Consumables | PETKIT waste bags (18-count rolls) and odor-eliminator refills. |
| Warranty | 2-year coverage per the Amazon listing |
| Price tier | $$ Mid-range ($300–$549). WIRED's Nov 6, 2026 price box: $550 at Amazon, $500 on sale (list $600). |
- PETKIT lists 657 × 538 × 603 mm and 11 kg. Amazon listings disagree (one gives 14 kg and 26.77 × 22 × 25.2 in).
- Entry height above the floor: the Amazon listing says roughly 10 in. PETKIT bundle pages give the entrance height as 250–255 mm.
- Noise: PETKIT says 35 dB; the Amazon listing says 35–45 dB.
Running costs: with our defaults, consumables for one cat come to about $4.30 a month plus litter. See the full breakdown in the 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 Max Pro 2 ourselves. This review draws on WIRED, which now calls it its favorite automatic litter box and tested it with a 17-lb cat, plus PETKIT’s specs and the Amazon listing.
The Purobot Max Pro 2 is a front-entry drum with a 1080p, 210° AI camera and a much bigger entry than earlier PETKIT boxes. WIRED’s November 6, 2026 price box showed $550 at Amazon and $500 on sale, against a $600 list price. That’s well under any Litter-Robot. Check the price, since sale prices vary between retailers.
Who it’s for (and who should skip it)
It’s for owners of large cats who found the PuraMax 2 too tight, and for anyone who wants a camera log of each visit. The 10.51 × 10.74 in entry is the reason it now beats the PuraMax 2 for big cats: WIRED’s 17-lb cat used it easily.
Skip it if you have a stiff senior cat. The Amazon listing puts the entry about 10 in off the floor, and PETKIT’s bundle pages give the entrance height as 250–255 mm. That’s a real step up. Skip it if ads in an app bother you, too. If you don’t want the camera, the PuraMax 2 does the core job for about $390. If you want the best-supported box regardless of price, the Litter-Robot 4 is our pick.
How it cleans, and how safe it is
The drum tilts to sift clumps into a sealed bin below. PETKIT says 12 integrated safety sensors plus the camera detect a pet, and the drum stops when a pet is nearby. WIRED counts it among its picks, and WIRED only recommends boxes that stay open during cycling, so the entrance stays open.
The limits are 3.3–22 lb and at least 6 months old. For kittens below that, keep automatic cleaning off. Check your cat’s weight, age and length with the cat safety checker. Our safety guide explains why open entrances and sensor minimums matter.
Living with it
The camera and app
The camera records visits, recognizes up to 15 cats by face and weight, and keeps stool and urine records, according to PETKIT. It isn’t movable. The box connects on both 2.4 GHz and 5 GHz Wi-Fi.
The app is the weak point. WIRED found it crowded with ads, and some WIRED testers found cat identification got confused after the free Care+ trial ended. If tracking each cat is the reason you’re buying, factor that in.
Litter
PETKIT says most clumping litters work as long as the granules are under 0.5 in (12 mm). A standard clumping clay is the safe default. See best litter for self-cleaning litter boxes.
Emptying and odor
The 8 L bin holds up to 17 days of waste for one cat, by PETKIT’s figure, and WIRED reports the same 17 days with one cat. Waste goes into a self-sealing bag, and two odor-eliminator cartridges sit in the bin. Our odor fixes guide helps if smells creep in.
Noise and size
PETKIT claims 35 dB, while the Amazon listing says 35–45 dB. Size figures vary by source. PETKIT lists 657 × 538 × 603 mm and 11 kg, while one Amazon listing gives 14 kg and 26.77 × 22 × 25.2 in. Measure your space with some margin.
Running costs
PETKIT’s bag listing suggests changing bags twice a week for two cats, about 4.3 bags per cat per month. We couldn’t confirm PETKIT’s own bag price, so our cost model uses Whisker’s $1-per-liner price as a stand-in. Third-party packs are usually cheaper. Litter is Dr. Elsey’s Ultra at $22.99 for 40 lb from Chewy, at our assumed 10 lb per cat per month.
That’s about $10 a month for one cat, or roughly $121 a year. Over five years, with the box at $500, we estimate about $1,103 for one cat and about $1,706 for two. Odor-eliminator refills are extra. WIRED puts PETKIT’s refills at $20 for three, about $6.67 a month if one lasts a month. Adjust everything in the cost calculator.
What you’ll need beyond the box
- Litter: Dr. Elsey’s Ultra unscented, 40 lb. Whatever you choose, check that the granules are under 0.5 in.
- Bags: PETKIT replacement waste bags, 18-count roll, listed for the PuraMax 2 and Purobot Max Pro.
- Odor refills: buy PETKIT’s cartridges for this model. The N50 refill we list for the PuraMax 2 isn’t listed as fitting the Max Pro 2.
- Mat: a Gorilla Grip 35 × 23 in mat for scatter at the entry.
The Amazon listing advertises two-year coverage.
Bottom line
The Purobot Max Pro 2 is the PETKIT to buy if your cat is big or you want a camera. WIRED’s current top pick earns that spot with a 43% larger entry, a camera that works, and an 8 L bin that lasts over two weeks for one cat, all for about $500–$550. The catches are the ad-heavy app, cat ID that got confused for some testers after the free trial, and a 10 in step-up.
For a comparison across brands, see Litter-Robot alternatives and best for large cats, or check the Purobot Max Pro 2 price.
Litter and supplies for the Purobot Max Pro 2
Litter, liners, odor refills and mats sold on Amazon that fit this box. Check the listing confirms your exact model before you buy.
- Liners & bagsPETKIT replacement waste bags for PuraMax 2 / Purobot Max Pro, 1 roll (18)Official PETKIT
PETKIT's own HDPE bags; the listing suggests about two changes a week for two average cats. Not for the Purobot Ultra, which uses bag rings for its auto-bagger.
- LitterDr. Elsey's Ultra unscented clumping clay cat litter, 40 lbCompatible, third-party
Unscented, 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.
- Litter matGorilla Grip cat litter mat, 35 × 23 inUniversal fit
Big enough to catch scatter from most globe boxes; textured backing stays put.
- Litter matGorilla Grip cat litter mat, extra large, 40 × 28 inUniversal fit
The size we'd put under open-top boxes, which both WIRED and Tom's Guide found fling more litter.
- Litter matiPrimio jumbo cat litter trapper mat, 32 × 30 inUniversal fit
Honeycomb two-layer mat with a waterproof layer, for cats that kick litter far.
Compatibility checked November 2026. More in our litter and supplies guide.
Featured in our guides
- The 8 Best Self-Cleaning Litter Boxes of 2026, Ranked for Safety and Value
- The Best Self-Cleaning Litter Box for Multiple Cats in 2026
- The Best Self-Cleaning Litter Box for Large Cats in 2026
- Best Self-Cleaning Litter Box With Health Monitoring: Weight, Visit and Camera Tracking Compared
