PETKIT Purobot Max 3 Automatic Cat Litter Box
By Arina Nikoliukina · Reviewed · Updated · Prices and recalls checked 10/09/2026
9.75OF 10
Outstanding
- Cat weight
- 3.3–22 lb
- Cats (max)
- not listed by PETKIT
- Type
- Rotating globe
- App required
- No
- Subscription
- No subscription
- First-year cost
- $488
Real cost, first year
10/09/2026| Device | $399.99 | $399.99 sale / $499.99 list |
|---|---|---|
| Shipping | $0 | free to the contiguous US per the vendor page |
| Plan (12 months) | $0 | no plan needed |
| Consumables (12 months) | $88 | Automatic Litter Box Trash Bag (fits PuraX, PuraMax, PuraMax 2 and Purobot Max 3) $29.99, every 15 days · Pet Odor Eliminator N50 2.0 $19.99, every 30 days |
| First-year cost | $488 | plus sales tax — varies by state |
| Each year after | $88 | plan and consumables at the vendor's intervals |
Category median first-year cost in our database: $622.50.
Specs and sources
Checked 10/09/2026 · source under each valueSize & pets
Manual on cat sizeManual T4-3 V1.1 p.27 (Safety Instructions): 'Strictly prohibited for use by kittens under 6 months of age. Strictly prohibited for cats weighing less than 1.5 kg.' p.26 'Suitable for: Cats over 6 months of age, weighing over 3.3 lb (1.5 kg)'. Product page: 'Suitable for cats 6+ months old, weighing 1.5–10 kg (3.3–22 lbs)'; FAQ: 'recommended weight limit of 1.5 to 10 kg (roughly 3.3 to 22 lbs). Cats do vary in length and shape. Check the entry dimensions'. Kitten Protection mode in app disables auto/periodic cleaning (manual p.17).instructions.petkit.com · 10/09/2026
Footprint24.4 W x 21.2 D x 21.7 H in (620 x 538 x 552 mm) per product page; manual p.26: 21.25 × 24.21 × 21.96 in (540 × 615 × 558 mm) '±1–3 cm'; entry size 10.51 x 10.74 in (267 x 273 mm); drum 76Linstructions.petkit.com · 10/09/2026
Mechanism
Days between emptyings (claimed)up to 15 days for one cat (7L side waste bin)petkit.com · 10/09/2026
LitterVendor: 'Works with 99% of clumping litters including clay, tofu, corn, and bentonite-based options.' Standard sifter for large particles, Honeycomb sifter for finer particles. Comparison table: 'Clumping clay / tofu / mixed litter'.petkit.com · 10/09/2026
Sensors (vendor wording)Vendor: 'xSecure, safe with & without sensors. ... 12 sensors track movement and weight in real time. If your cat steps in mid-cycle, the cylinder stops immediately and restarts only when they're out of the way.' 'The cylinder's gear is intentionally incomplete. That means a permanent opening, no matter what. Even with no power and no sensors, your cat can always back out.'petkit.com · 10/09/2026
Power & connectivity
Wi-Fi2.4 GHz Wi-Fi only (comparison table and Specs); manual p.26: Wi-Fi, BLEpetkit.com · 10/09/2026
App & subscription
App privacy labelsee petkit-purobot-ultra.json app.privacy_note (same app). Google Play: '2.4 GHz Wi-Fi required (5 GHz supported on select models)' — Max 3 is 2.4 GHz only.apps.apple.com · 10/09/2026
Without a planVendor: 'Not everyone wants to open the app every time. The top panel handles the essentials without it. Instant Clean, Odor Control, Litter Leveling, Maintenance Mode, Wi-Fi Setup, and more. We'd still recommend pairing with the PETKIT App. The full feature set lives there.' No camera, so no CARE+ video tier (comparison table: Care+ compatible row not ticked for Max 3).petkit.com · 10/09/2026
Consumables
Automatic Litter Box Trash Bag (fits PuraX, PuraMax, PuraMax 2 and Purobot Max 3)$29.99 · 1 Pack (5 Rolls), 20 bags per roll = 100 bags (petkit.com, 10/14/2026) · every 15 days (vendor)petkit.com · 10/09/2026
Pet Odor Eliminator N50 2.0$19.99 · 1 Pack (3 Pcs) 'From $19.99'; 2 Pack (6 Pcs) · every 30 days (vendor)petkit.com · 10/09/2026
Pet Odor Eliminator N60 (for Breezy Smart Odor Eliminator — Premium version / sold separately)$19.99 · 1 Pack (3 Pcs) · every 60 days (vendor)petkit.com · 10/09/2026
Safety & recalls
Buying
SupportCall +1(888)851-2770 (9am-12pm & 1pm-6pm CST Mon.-Sun.); support@petkit.comvendor support page
Brand page or manualRegulator database (CPSC)
Where to buy
Prices checked 10/09/2026petkit.com · official$399.99 sale / $499.99 listchecked 10/09/2026
Prices as printed on the store page on the date shown, before sales tax; stock and bundles differ by store.
Compared with similar self-cleaning litter boxes
All 28 self-cleaning litter boxes →| Model | Score | Price | Subscription | 1st-year cost | Cat weight | Cats (max) | Warranty | Actions |
|---|---|---|---|---|---|---|---|---|
 PETKIT Purobot Max 3 Automatic Cat Litter Box | 9.75/10 | $399.99 sale / $499.99 list | No subscription | $488 | 3.3–22 lb | not listed by PETKIT | 2 yrs | |
 CATLINK Self Cleaning Litter Box - Scooper Young Pro-X | 9.5/10 | $399.99 sale / $498 list | No subscription | $603 | 3.3–22 lb | not listed by CATLINK | 1 yr | |
 PetSafe ScoopFree SmartSpin Self-Cleaning Litter Box | 9.5/10 | $399.99 | No subscription | $431 | 2.5–25 lb | not listed by PetSafe | 1 yr | |
 PETKIT Purobot Max Pro 2 Automatic Cat Litter Box (Fence 2.0 Included) | 9.5/10 | $499.99 sale / $599.99 list | Subscription optional | not enough data (plan) | 3.3–22 lb | not listed by PETKIT | 2 yrs | |
 CATLINK Self Cleaning Litter Box - Scooper Luxury Pro-X | 9.25/10 | $439 sale / $479 list | No subscription | $642 | 3.3–22 lb | not listed by CATLINK | 1 yr |
What owners say
Checked 10/09/2026Owner reviewsToo few independent ratings
0owner reviews read
Not enough owner reviews read yet (0 read), so no Owner Complaint Index for this model: we publish it from 50 reviews.
- Petkit.com (Judge.me widget)12 read · 10/09/2026 · widget score 4.5 (188) is a grouped total that includes legacy PuraMax 2 reviews: of the 50 most recent, only 12 (08/02/2026–10/05/2026) are on Purobot Max 3; 36 are tagged 'PuraMax 2 Automatic Litter Box' and 2 'PuraMax 2 Starter Bundle' (used in petkit-puramax-2.json). Distribution shown: 5★140 / 4★20 / 3★21 / 2★2 / 1★54.5/5188 reviews
Mixed, or too few independent ratings to call. In our score this is 1.75 of 2 points. How we score
Praise that comes up again
- wide/low entry for big cats (Maine Coon mixes)
- quiet
- quick acceptance by 2–3-year-old cats and a kitten
- two owners switched from a Litter-Robot with a failed motor / $800 price
Praise
“needed a new box for our 3 cats, 2 of which are mainecoon mixes ... Much more space for our big boys too.”
Complaint
“The green plastic piece inside the litter box is prone to bending and warping, which can cause litter to get stuck and prevent the robot from cycling out dirty litter.”
Praise
“It’s super quiet and does a great job, and it looks nice in our space.”
Complaint
“Mostly good but sometimes cat goes pee and it doesn't clean. It leaves clumps because cat tries to go back in soon after finishing”
Complaint
“there is a pretty steep learning curve on PBM3; both for me at almost 84 years of age and for the two cats one of which is 70% feral.”
Quotes are word for word from the linked pages, and we pick praise and complaints alike. Reviews on the brand's own site and reviews written for a free product are not counted. Store ratings change over time; the date shows when we checked.