Ohio State University College of Veterinary Medicine, Third-party source, Reviewed October 3, 2026
Cat must be able to stand and turn. Keep access clear, avoid startling appliances and blocked routes, retain familiar litter during changes and provide multiple locations including each floor. Used as general care context, not an endorsement of any automatic machine or a comparative safety test.
Meowant, Manufacturer specification, Reviewed October 3, 2026
19.3 by 19.3 by 21.45 inch body, 6.1 inch entry and 3.6 L waste bin. 75 L assembled volume is separate from 51.7 L toileting space. Actual cat fit and service access remain necessary.
Meowant, Manufacturer specification, Reviewed October 3, 2026
Visually reviewed exact manual. Cat weight 3.3 to 22 lb and age above four months. Toileting space 51.7 L. Clumping tofu pieces under 15 mm. Liner replacement recommended every three to five days. Firm level floor, mat in front rather than under weighing feet and no rinsing or immersion of the electrical base.
Meowant, Manufacturer specification, Reviewed October 3, 2026
Enclosed drum, 24.8 by 20 by 22.48 inch body, 8 inch entry and 6.7 L waste bin. Body volume is not directly comparable with another model’s usable toileting volume. No four-cat maximum inferred from multi-cat wording.
Meowant, Manufacturer specification, Reviewed October 3, 2026
Visually reviewed exact manual. Above 3.3 and below 30 lb, older than four months. Excludes entry or exit difficulties. At least three inches from walls, firm level floor, 2.4 GHz setup and three to five day liner-change recommendation. Electrical base must not be rinsed.
Meowant, Manufacturer specification, Reviewed October 3, 2026
White MW-SC10 open top, 25.79 by 16.93 by 21.26 inch body, 9.48 inch entry and 11.9 L waste drawer. Main weight specification says 3.3+ lb while the comparison card says up to 30 lb. No unlimited-weight inference. IPX5 wording is qualified by the exact operating manual.
Meowant, Manufacturer specification, Reviewed October 3, 2026
Visually reviewed pages 1 to 16. Age above six months, at least 3.3 lb in troubleshooting, and no entry or exit difficulties. At least three inches from walls, firm level floor, 2.4 GHz app setup or button-only operation. Liner change recommended every three to five days. Pages 13 to 15 separate washable drum, drawer and liner from wipe-only electrical base. No individual-cat identification inferred from visit totals.
Original M1 purchase destination now identifies M1 Plus
Amazon US, Product listing, Reviewed October 3, 2026
Creators API exact lookup at 01:03 UTC selected M1 Plus Model, part M1 Plus, model PS0120, Grey. Original M1 historical identity is preserved and its purchase action paused. This is a generation mismatch, not an availability failure.
Popur X5 cardboard-bin new offer not verified
Amazon US, Product listing, Reviewed October 3, 2026
Creators API exact lookup at 01:03 UTC identified X5 Cardboard Bin but returned no new-condition offer. No global stock or discontinued claim is made. Original identity is retained and purchase action paused.
PetSafe, Manufacturer specification, Reviewed September 20, 2026
Model-specific operating limits, construction and supplied tools checked for this comparison research.
PetSafe ZAL00-18120 exact Amazon listing
Amazon, Product listing, Reviewed September 20, 2026
Exact ASIN identity checked on September 20. Delivery availability depends on destination. Research requests defaulted to France, so blocked international delivery is not evidence of unavailable US stock.
PetSafe, Manufacturer specification, Reviewed September 20, 2026
Model-specific operating limits, construction and supplied tools checked for this comparison research.
PetSafe SmartSpin exact Amazon listing
Amazon, Product listing, Reviewed September 20, 2026
Exact ASIN identity checked on September 20. Delivery availability depends on destination. Research requests defaulted to France, so blocked international delivery is not evidence of unavailable US stock.
PETKIT, Manufacturer specification, Reviewed September 20, 2026
Model-specific operating limits, construction and supplied tools checked for this comparison research.
PETKIT P9902 exact Amazon listing
Amazon, Product listing, Reviewed September 20, 2026
Exact ASIN identity checked on September 20. Delivery availability depends on destination. Research requests defaulted to France, so blocked international delivery is not evidence of unavailable US stock.
PetSafe, Manufacturer specification, Reviewed September 20, 2026
Model-specific operating limits, construction and supplied tools checked for this comparison research.
PetSafe Crystal Pro Legacy exact Amazon listing
Amazon, Product listing, Reviewed September 20, 2026
Exact ASIN identity checked on September 20. Delivery availability depends on destination. Research requests defaulted to France, so blocked international delivery is not evidence of unavailable US stock.
Whisker, Manufacturer specification, Reviewed September 20, 2026
Model-specific operating limits, construction and supplied tools checked for this comparison research.
Whisker Litter-Robot 4 exact Amazon listing
Amazon, Product listing, Reviewed September 20, 2026
Exact ASIN identity checked on September 20. Delivery availability depends on destination. Research requests defaulted to France, so blocked international delivery is not evidence of unavailable US stock.
Popur X5 exact Amazon model and dimensional specification
Popur on Amazon, Product listing, Reviewed September 20, 2026
Exact listing checked September 20. 33 lb is litter load. Length is 30.4 in and width is 21.2 in. No current US New offer, so no new comparison featuring this listing was published.
CATLINK, Manufacturer specification, Reviewed September 20, 2026
25.6 by 23.6-inch floor outline, 13.8-inch entrance, six-inch all-side clearance. Conflicting litter and single/multi-cat wording is not resolved into a permissive claim.
Neakasa, Manufacturer specification, Reviewed September 20, 2026
Elevated front fence marketed for high-pee containment. No verified final entrance height, spray-containment percentage or leak-proof guarantee.
M1 weighing and floor placement
Neakasa, Manufacturer specification, Reviewed September 20, 2026
Firm level placement. Avoid carpet and placing the machine on its litter mat.
Former original M1 Amazon destination now names M1 Plus
Amazon US, Product listing, Reviewed September 20, 2026
Public HTML title, canonical and selected ASIN read back. This destination now identifies M1 Plus. No verified replacement original-M1 listing found in a bounded search. Hold purchase links in VS pages without substituting Plus specifications.
Petlibro, Manufacturer specification, Reviewed September 20, 2026
Open top, 11 L waste drawer, 2.4 and 5 GHz, adult cats over 2.2 and under 22 lb. Cloud AI is needed for recordings and analysis, not basic cleaning or live viewing.
PETKIT, Manufacturer specification, Reviewed September 20, 2026
P9902 regional manufacturer page. Used only for common hardware entry height 7.87 inches, 7 L drawer and 3.3 to 22 lb cat range, corroborated by current US Amazon branded description. UK pricing, power adapter and warranty not transferred.
Petlibro Luma selected US listing
Amazon, Product listing, Reviewed September 20, 2026
Exact ASIN B0GTM9P94B checked in visible browser between 09:31 and 09:40 UTC with delivery ZIP 10001. Current New main offer showed In Stock and Add to cart and Buy Now. Shipper and seller Amazon.com. Availability is a dated location-specific snapshot. No purchase action taken.
PetSafe SmartSpin White selected US listing
Amazon, Product listing, Reviewed September 20, 2026
Exact ASIN B0D4GHS7V6 checked in visible browser between 09:31 and 09:40 UTC with delivery ZIP 10001. Current New main offer showed In Stock and Add to cart and Buy Now. Shipper and seller Amazon.com. Availability is a dated location-specific snapshot. No purchase action taken.
PETKIT PuraMax 2 Basic Bundle selected US listing
Amazon, Product listing, Reviewed September 20, 2026
Exact ASIN B0DFYF2D7D checked in visible browser between 09:31 and 09:40 UTC with delivery ZIP 10001. Current New main offer showed In Stock and Add to cart and Buy Now. Shipper and seller PETKIT-US. Availability is a dated location-specific snapshot. No purchase action taken.
PetSafe, Manufacturer specification, Reviewed September 20, 2026
Clumping-litter sifting, sealed six-liter drawer, weight tracking and Pet Companion app. The broad any-litter marketing line is not used to establish crystal compatibility.
PETKIT, Manufacturer specification, Reviewed September 20, 2026
Exact P9902 manual. 24.41 by 21.18 by 21.73 inches, about 22 pounds. Over six months and at least 1.5 kg. Hard flat floor required.
PuraMax 2 basic US bundle and offer
Amazon US, Product listing, Reviewed September 20, 2026
Exact currentAsin matched. Cookie-free curl HTTP 200 with enabled Add to cart and Buy Now submit inputs. Listing gives 76 L interior, 7 L waste drawer, 3.3 to 22 pound cats, 2.4 GHz Wi-Fi and no K3 spray compatibility in this basic version.
PetSnowy, Manufacturer specification, Reviewed September 20, 2026
Recommends up to four cats, 3.3-pound minimum for automatic mode, hard flat floor and compatible self-sealing liners. Clay clumping recommended. Some plant litter can work with more frequent maintenance.
PetSnowy SNOW+ exact US Premium offer
Amazon US, Product listing, Reviewed September 20, 2026
Current 2026 Premium title, exact currentAsin, cookie-free HTTP200 and enabled Add to cart and Buy Now submit inputs. 2.4 GHz app connection. Basic use works without a smartphone.
Whisker, Manufacturer specification, Reviewed September 20, 2026
22 by 27 inch footprint, 29.5 inch height, 24 pounds, 3 to 25 pound cats. Sealed waste drawer. Clumping clay recommended and plant-based litter typically unsuitable. 2.4 GHz only. Carpet Tray can improve scale accuracy on carpet.
PETLIBRO, Manufacturer specification, Reviewed September 20, 2026
23.3 by 22.5 by 28.1 inches, 33.01 pounds, 11 L drawer, 2.4 and 5 GHz, live video without subscription. Recorded video and advanced analysis need Video Cloud AI. Hard flat floor with four-inch clearance. Automatic cleaning disabled for cats under six months, under 2.2 pounds, pregnant or nursing.
Neakasa Support Center, Manufacturer specification, Reviewed September 20, 2026
Original support article dated March 29, 2024. Supports fast-clumping bentonite and mineral granules, with a maximum diameter of 3 mm and length of 10 mm. Explicitly excludes tofu litter and mixtures containing tofu. The current M1 storefront has changed to M1 Plus, so Plus claims are not transferred to original ASIN B0CSKBWBF6.
Original Neakasa M1 household recommendation
Neakasa Support Center, Manufacturer specification, Reviewed September 20, 2026
Support article dated June 20, 2024 recommends sharing among two or three cats. This is a household recommendation, not a guaranteed interval between cleaning or a reason to leave cats unattended.
Original Neakasa M1 and M1 Lite bundle comparison
Neakasa Support Center, Manufacturer specification, Reviewed September 20, 2026
Support article dated January 20, 2025 and its embedded comparison image were inspected. Original M1 is gray with Odor-Seal Electric Door, litter mat and two waste-bag rolls. Original M1 Lite is white without the door or mat and with one waste-bag roll. The image does not state bags per roll. Exact Amazon package contents still need confirmation. This original comparison differs from the current Plus comparison.