PETKIT PUROBOT MAX 3 vs MAX PRO 2
Compare PETKIT PUROBOT MAX 3 and MAX PRO 2 by camera monitoring, entry geometry, waste capacity, Wi-Fi, price, dimensions, and daily upkeep.
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Best match in this guide
Our top recommendation: PETKIT PUROBOT MAX 3
MAX 3 is the more focused purchase when automatic cleaning, a low 8.03-inch entrance, 7-liter waste bin, and 2.4 GHz app connection cover the need. It gives up the Pro 2's camera, visual identification, larger bin, and dual-band Wi-Fi while saving about $200 at observed prices.
- Best for
- Owners who want the lower PETKIT price, a lower threshold, and app-based weight and visit records without video
- Buying note
- $399.99 sale price at research time; verify current price, stock, warranty, and included odor accessories.
On this pageBrowse sections
Decision first
Quick picks
Quick verdict
Choose PUROBOT MAX 3 when lower price and a lower step-over height matter more than video. Choose PUROBOT MAX PRO 2 when the household will use its camera and visual identification to separate several cats.
Both are enclosed automatic self-cleaning litter boxes with the same published 3.3-to-22-pound cat range and 76-liter cylinder space. The Pro 2 is not automatically roomier for every cat; it offers a larger doorway and more monitoring in a larger exterior.
Side-by-side specifications
| Decision factor | PUROBOT MAX 3 | PUROBOT MAX PRO 2 |
|---|---|---|
| Observed sale price | $399.99 | $599.99 with promotional bundle |
| Dimensions | 24.4 × 21.2 × 21.7 in | 25.86 × 21.18 × 23.74 in |
| Published entrance height | 8.03 in | 10.03 in |
| Cat-weight guidance | 3.3–22 lb | 3.3–22 lb |
| Cylinder space | 76 L | 76 L |
| Waste bin | 7 L | 8 L |
| Stated single-cat interval | Up to 15 days | Up to 17 days |
| Built-in camera | No | 1080p, 210° field of view |
| Cat identification | Weight and usage records | Camera plus weight records |
| Wi-Fi | 2.4 GHz | 2.4 and 5 GHz |
| Published operating noise | 35 dB | 35 dB |
The day counts are manufacturer estimates, not our test results. Cat size, diet, litter, waste volume, and emptying tolerance change the real interval.
The camera is the main upgrade
MAX PRO 2 adds a 1080p camera, visual multi-cat recognition, visit video, and one-way audio. That can help when two cats have similar weights or when the owner needs visual confirmation of who entered the unit. MAX 3 keeps app-based visit and weight records but does not provide video.
Do not buy the camera for diagnosis. PETKIT markets pattern and urinary-health features, but a consumer litter box cannot establish why a cat’s behavior changed. Use records as a prompt to observe the cat and contact a veterinarian when health or elimination changes are concerning.
If cameras are not wanted inside the home, MAX 3 avoids that privacy and account-management layer. If cameras are the deciding feature, verify current video storage, PETKIT Care+ terms, and what remains available without a subscription before purchase.
Doorway size and step height point in different directions
PETKIT gives MAX 3 an 8.03-inch entrance height and describes its entry as low and wide. MAX PRO 2 has a larger published opening but a 10.03-inch entrance height. A larger hole can help a broad or long-bodied cat, while a lower threshold can matter more for a short-legged or mobility-limited cat.
Measure both the cat and the path into the globe. Do not translate “larger entry” into “easier entry” without considering step height. For cats near the upper end of the published range, compare our automatic litter box guide for large cats before choosing between these two enclosures.
Footprint and cleaning access
MAX 3 is about 1.5 inches narrower and 2 inches shorter than MAX PRO 2 while sharing nearly the same depth. That difference is meaningful under a shelf or beside a cabinet, but neither unit is small. Leave clearance for the side waste bin, cylinder removal, refilling, and maintenance mode.
PETKIT instructs owners to use a firm, level surface and leave appropriate wall clearance for sensing and movement. Measure the working area, not only the exterior shell. Our small-apartment automatic litter box shortlist compares the surrounding access each unit needs.
Waste capacity and recurring supplies
MAX PRO 2 increases the waste bin from 7 to 8 liters and raises PETKIT’s single-cat interval from up to 15 to up to 17 days. Treat the extra two days as a capacity estimate, not a cleaning schedule. Waste should be removed sooner when sealing, smell, moisture, or sensor performance changes.
Both models use PETKIT litter pads, waste-bag systems, sifters, and optional odor-control supplies. Check which N50 or N60 components are included, their replacement schedule, and whether generic bags are practical. A sale bundle can change the first-year value more than the base specification table.
Who should choose MAX 3
MAX 3 is the better value for one-cat homes, cats that benefit from the lower threshold, and owners who want automatic cleaning without video. It also fits the Litter-Robot alternatives under $500 search more directly at the observed price.
Choose it only after confirming the 22-pound upper guidance, the 24.4-by-21.2-inch floor shape, current seller support, and the supplies included in the box.
Who should choose MAX PRO 2
MAX PRO 2 makes sense for similar-weight cats that are difficult to separate using weight records alone. The larger doorway, 8-liter bin, dual-band Wi-Fi, and visual records add real capability, but they do not expand the published weight range.
Skip the premium when nobody will review the video, the taller exterior conflicts with a shelf, or the lower MAX 3 threshold is more important than the larger opening.
Bottom line
PUROBOT MAX 3 is the simpler value choice. MAX PRO 2 is the camera and identification choice. Decide from the household’s hardest constraint—entry geometry, visual identification, or budget—not from the longer feature list.
Research shortlist
The picks in detail
PETKIT PUROBOT MAX 3
Best for: Owners who want the lower PETKIT price, a lower threshold, and app-based weight and visit records without video
MAX 3 is the more focused purchase when automatic cleaning, a low 8.03-inch entrance, 7-liter waste bin, and 2.4 GHz app connection cover the need. It gives up the Pro 2's camera, visual identification, larger bin, and dual-band Wi-Fi while saving about $200 at observed prices.
Why it stands out
- Lower observed purchase price
- Lower published entrance height
- Slightly smaller exterior than MAX PRO 2
Watch-outs
- No built-in camera
- Weight records may not separate similar-weight cats reliably
- Smaller 7-liter waste bin
PETKIT PUROBOT MAX PRO 2
Best for: Multi-cat homes willing to pay more for a 1080p camera, facial recognition, and longer stated waste capacity
MAX PRO 2 is the monitoring upgrade. Its camera, facial recognition, one-way audio, 8-liter bin, and 2.4/5 GHz connection offer more context, but the body is taller and wider and the published cat-weight range remains the same as MAX 3.
Why it stands out
- 1080p camera and visual multi-cat recognition
- Larger 8-liter waste bin
- 2.4 and 5 GHz Wi-Fi support
Watch-outs
- Higher observed purchase price
- Larger 25.86-by-21.18-by-23.74-inch exterior
- Camera health language does not replace veterinary evaluation
Evidence trail
Sources reviewed
These sources support the factual and safety context on this page. Product fit still depends on the individual cat, household, and current manufacturer instructions.
- PETKIT PUROBOT MAX 3 official product information ↗PETKIT PUROBOT MAX 3 specifications
Used to verify current product specifications, pricing context, compatibility, and support information.
- PETKIT PUROBOT MAX PRO 2 official product information ↗PETKIT PUROBOT MAX PRO 2 specifications
Used to verify current product specifications, pricing context, compatibility, and support information.
Frequently asked questions
Does PUROBOT MAX PRO 2 fit heavier cats than MAX 3?+
No. PETKIT publishes the same 3.3-to-22-pound range for both models. The Pro 2 has a larger doorway, but a weight limit still does not prove that a long-bodied cat can turn comfortably inside.
Does PUROBOT MAX 3 have a camera?+
No. MAX 3 uses sensors and app records without the Pro 2's built-in video camera and facial recognition. That can be enough for one cat or cats with clearly different weights.
Which PETKIT model is better for a low entry?+
MAX 3 has the lower published entrance height at 8.03 inches. PETKIT describes the Pro 2 as having a larger opening, but its published entrance height is 10.03 inches, so doorway area and step-over height are separate measurements.