106 L cabin

UBPet C41 (automatic litter box quiet, built for large cats): our review

Brand: UBPetOur methodology

Overall scoreiScores based on comparisons of verified specifications in our catalogue. No hands-on testing. Comparison of documented models, not an exhaustive market survey. n is the number of models compared for each criterion. No hands-on testing.
8.1/10
Documentation: partialNot confirmed by a verified source: Cleaning, Litter box type.
View on Amazon →
Scale from 6.5 to 9.6, the actual range of our scores. The dotted line shows the average for models analysed. Comparison of documented models, not an exhaustive market survey. n is the number of models compared for each criterion. No hands-on testing.
Waste bin capacity: 7.3/10: 6.7 l, ahead of 24% of the models in the catalogue · n = 17. Average for models analysed: 8.1/10Unit weight: 8.6/10: 10 kg, ahead of 64% of the models in the catalogue · n = 14. Average for models analysed: 8.1/10Equipment: 8.3/10: 4 of 20 tracked features documented, ahead of 50% of the models in the catalogue · n = 34. Average for models analysed: 8/10Waste bin capacity7.3/10 · avg. 8.1Unit weight8.6/10 · avg. 8.1Equipment8.3/10 · avg. 8
The short version

UBPet C41 review: easier access shapes our opinion

The C41 pairs a low entrance with an airtight waste compartment and a removable bin. We favor that practical combination for a cat whose daily access matters more than a long feature checklist. Choose it with a realistic maintenance routine in mind.

Verdict

8.1/10

Our verdict on UBPet C41 puts everyday access first

An easier step for the cat still leaves a chore for you. We like the C41 for putting everyday access first, with a removable bin that keeps waste handling straightforward. It is well placed overall in our scores. The entrance is the draw.

Our verdict: We recommend it for households that prioritize the low threshold and keep up with maintenance. Consider PETLIBRO Luma for multiple cats: PETLIBRO Luma has higher waste bin capacity, although its unit weight is higher and its overall rating is lower.

Worth noting What holds us back is the modest waste storage. Avoid it if regular drawer emptying would erase the convenience you want, especially with cats sharing the box.

Review by Romain Brunel, founder of Self Cleaning Litter Box Picks

Who it's for

Who will appreciate this self-cleaning litter box most?

  • Senior cats that benefit from a lower entrance
  • Households that keep a regular maintenance routine
  • Owners who want recorded weight changes

This model makes sense for a household focused on comfortable access and straightforward waste handling. In an apartment where the litter box shares the bathroom, a senior cat's easier step inside could matter at every visit. It also suits someone who wants weight records while relying on veterinary advice to understand concerning changes.

Less suitable if

Skip this model if its footprint crowds the space where your cat needs to enter comfortably. It is also a poor match for anyone expecting weight tracking to explain a medical concern or an advertised sensor to remove the need to follow operating instructions.

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Dimensions

Give the C41 room beside the laundry hamper

Width50,8 cm
Depth63 cm
Height57,1 cm
Weight10 kg
Entry threshold20,3 cm
Interior volume106 L
Waste drawer capacity6,7 L

Specifications

What this automatic litter box brings to the daily routine

Minimum cat weight1 kg
Usable interior volume106 L
Waste bin capacity6,7 L
Width50,8 cm
Depth63 cm
Height57,1 cm
Entry threshold height20,3 cm
Unit weight10 kg
Noise level42 dB
For which animal?Cat
Cat monitoringWeight tracking
Safety featuresWeight sensor
Waste managementRemovable waste bin
ConditionNew
Odour control systemAirtight waste compartment
Odor control systemSealed waste compartment

Pros

The entrance and removable bin give this litter box practical appeal

  • Low entry threshold that asks less of senior legs
  • Airtight waste compartment intended to contain odors
  • Removable waste bin for direct access when emptying
  • Weight tracking for following recorded changes
  • Stated usable interior volume helps assess room inside

Cons

Where the C41 asks for more involvement

  • Waste drawer needs frequent emptying, especially with multiple cats
  • Footprint needs deliberate space in a bathroom or laundry room
  • Carrying the unit calls for 2 hands

Our scores explained

How the C41 fares across our scoring criteria

Every model on the site is scored on the same criteria, using the same scale: its position among models with verified data for that specification. Last place earns 6.5, first place 9.6, and the rest are scored in proportion to their rank. Here is how this model's scores are calculated.

Two model counts: the rank and average include product pages on this site scored for the criterion; the calculation compares the model with all catalogue models whose specification is verified, with or without a product page. A score assigned at publication may remain without a verified specification, so the first count can sometimes be higher.

Waste bin capacity: 7.3/10

UBPet C41 scores 7.3/10 on this criterion. Across the 15 product pages on the site with a score for this criterion, the average is 8.1: below average, Rank 12 out of 15.

View calculation
Shared baseline: last place in the ranking6.5
Waste bin capacity: 6.7 l ; 4 perform worse, 12 perform better, 1 are tied (including this model), among the 17 catalogue models with this specification verified+0.8
Waste bin capacity score7.3/10

Calculation: (4 + 1 ÷ 2) ÷ 17 = 26.47% of the ranking; 6.5 + 26.47% × 3.1 = 7.3/10, rounded to one decimal place.

Unit weight: 8.6/10

UBPet C41 scores 8.6/10 on this criterion. Across the 12 product pages on the site with a score for this criterion, the average is 8.1: above average, Rank 5 out of 12.

View calculation
Shared baseline: last place in the ranking6.5
Unit weight: 10 kg ; 9 perform worse, 4 perform better, 1 are tied (including this model), among the 14 catalogue models with this specification verified+2.1
Unit weight score8.6/10

Calculation: (9 + 1 ÷ 2) ÷ 14 = 67.86% of the ranking; 6.5 + 67.86% × 3.1 = 8.6/10, rounded to one decimal place.

Equipment: 8.3/10

UBPet C41 scores 8.3/10 on this criterion. Across the 29 product pages on the site with a score for this criterion, the average is 8: above average, Rank 11 out of 29.

View calculation
Shared baseline: last place in the ranking6.5
4 features found out of 20 tracked: 17 perform worse, 11 perform better, 6 are tied (including this model), among the 34 catalogue models with this specification verified+1.8
Equipment score8.3/10

Calculation: (17 + 6 ÷ 2) ÷ 34 = 58.82% of the ranking; 6.5 + 58.82% × 3.1 = 8.3/10, rounded to one decimal place.

Recorded features: Cat monitoring (Weight tracking), Safety features (Weight sensor), Waste management (Removable waste bin), Odour control system (Airtight waste compartment).

The retailer does not specify: Backup battery, Maintenance and removable parts, Consumables require replacement. These features are not counted.

Overall score: 8.1/10, the average of the 3 scores above.

Our full methodology

Detailed analysis

The cat makes a bathroom stop just after dinner, right when you are ready to leave the kitchen chores behind. The UBPet C41 combines a low entrance, weight tracking, and an airtight waste compartment. Those are useful ingredients for a less demanding routine. Our view is straightforward: comfortable access matters, and the maintenance you are willing to keep doing matters just as much.

Does the C41 automatic litter box give your cat room to turn in 106 L?

Your cat does not care how impressive a specification sounds. There needs to be room for the bathroom routine: stepping in, turning around, settling into position, and leaving without an awkward shuffle. The C41 has a stated usable interior volume of 106 L, a useful indication of space inside. That volume describes the available interior, not how comfortably your particular cat will move. Think about the cat using it, especially if unfamiliar spaces receive the enthusiasm usually reserved for a carrier.

The manufacturer's minimum cat weight is 1 kg. That is an operating limit, not a suggestion to round upward when a growing kitten seems close enough. A kitten below that minimum must not use automatic mode. For a gradual introduction, follow manufacturer guidance to leave the unit switched off or in manual mode for a few days, with the previous litter box beside it. Familiarity gets a vote here.

The C41's 20,3 cm threshold gives senior cats a lower step

A senior cat may still patrol the hallway while becoming less willing to lift a paw as high as it used to. The entry threshold is 20,3 cm, a low step that should ask less of aging legs on each bathroom visit. That accessible entrance is a meaningful reason to consider this model. For a cat with mobility difficulties, the important question is how comfortably that individual cat can cross the threshold.

Does your cat pause before stepping into the current litter box? Watch that movement before choosing a replacement. Getting inside comfortably matters every day, long after the novelty of an automatic appliance wears off. The C41 also includes weight tracking, which can help you follow recorded weight changes. Keep that information in perspective: it is not a health tool, and changes in weight or bathroom habits belong in a conversation with your veterinarian. A readout cannot explain why a cat's routine has changed.

Your C41 automatic litter box needs a corner 63 cm deep

The laundry room corner can look roomy until the hamper, detergent, and litter box all want the same real estate. At 50,8 cm wide, 63 cm deep, and 57,1 cm tall, this unit needs a deliberate place in the household. Width determines how much floor space it occupies sideways; depth determines how far it reaches into the room; height matters beneath shelving. Mark the footprint on the floor so you can judge the remaining walking space without relying on a hopeful glance.

Its 10 kg unit weight is typical for an appliance that calls for 2 hands when carrying. That matters when moving it out of a bathroom corner for cleaning, particularly if the route includes a narrow doorway. Choose somewhere you can reach comfortably. A corner that accommodates the unit but leaves you squeezed against the washer will make routine maintenance more awkward. Leave yourself room to work. Your laundry basket will continue to have opinions about the arrangement.

A 42 dB cleaning cycle still belongs in your room plan

When the litter box shares your bathroom, its cleaning cycle becomes part of the room's background activity. The advertised noise level is 42 dB, which describes sound during cleaning. Treat it as a reference when deciding where the appliance belongs, particularly near somewhere you sleep or take calls. The sound you notice will also depend on the room and where you sit or sleep.

An airtight waste compartment is intended to contain odors, a useful feature when you would rather greet guests yourself than let the litter box handle introductions. The removable waste bin gives you a part you can take out for emptying. Odor containment does not replace regular maintenance. The manufacturer identifies a weight sensor as a safety feature; that is an advertised provision, not a guarantee of your cat's safety. We like the practical combination of accessible waste handling and weight records, provided your expectations stay grounded in what those features actually offer.

How often will a 6,7 L waste drawer need your attention?

The waste drawer sets the limit on how much this appliance can take off your chore list. At 6,7 L, it needs frequent emptying, especially when household cats take turns using the same box. Coming home from a weekend away and hoping that chore can wait is understandable; the storage leaves less room for postponement. The number of cats and the litter used affect how quickly the drawer fills, so its volume does not establish a fixed emptying schedule.

The Neakasa M1 Plus alternative has a higher waste bin capacity of 11,23 L, a similar unit weight, and is better rated overall. Choose Neakasa M1 Plus when waste storage is your priority. PETLIBRO Luma is better suited to a household with multiple cats because its waste bin capacity is higher, at 11 L. PETLIBRO Luma has a higher unit weight and is less well rated overall. The C41 is well placed overall in our scores, with its low entrance remaining a persuasive reason to choose it.

Romain Brunel

Reviewed by Romain Brunel

Founder of Self Cleaning Litter Box Picks

I analyse specifications, manuals and buyer reviews to explain the differences between automatic litter boxes. I pay particular attention to the safety of the mechanism, the space available to the cat and maintenance requirements. I distinguish documented information from testimonials and information that still needs to be verified.

Updated on October 7, 2026

Frequently asked questions

Your questions about the C41 before ordering

Can a growing kitten use the C41?

The manufacturer's minimum cat weight is 1 kg. A kitten below that limit must not use automatic mode. Follow manufacturer guidance for a gradual introduction with the unit switched off or in manual mode for a few days and the previous litter box beside it.

What does the C41's weight tracking tell me?

It lets you follow recorded weight changes. Those records are not a health tool or an explanation for a change in bathroom habits. Bring concerning changes to your veterinarian instead of relying on the weight record to interpret them.

Can I use silica crystal or clumping litter?

Compatible litter types are not specified in the available information. Confirm support for silica crystal or clumping litter before choosing supplies, along with any required bags or replacement consumables. Check what needs regular replacement so you can plan your ongoing supplies.

What should I confirm before ordering this automatic litter box?

Warranty coverage, returns, support arrangements, and app or subscription requirements still need confirmation. Ask the retailer for those details in writing before ordering, including how to arrange a return and whom to contact if the unit needs attention.

In brief

UBPet C41

8.1/10Overall score

Pros

  • Low entry threshold that asks less of senior legs
  • Airtight waste compartment intended to contain odors
  • Removable waste bin for direct access when emptying
  • Weight tracking for following recorded changes

Before you buy

  • Waste drawer needs frequent emptying, especially with multiple cats
  • Footprint needs deliberate space in a bathroom or laundry room
  • Carrying the unit calls for 2 hands
View on Amazon → Check price and availability with the retailer
How this model compares

Similar models in the range

Models similar to UBPet C41 compared
Model Score Main drawback
UBPet C10 7.7Overall score Limited waste tray capacity, especially with several cats Read →
UBPet C20 6.9Overall score Ability to distinguish between cats of similar weights needs checking Read →
UBPet C41You are here 8.1Overall score Waste drawer needs frequent emptying, especially with multiple cats
The full series

Other models in this series

  • UBPet C10 7.7/10Overall score
  • UBPet C20 6.9/10Overall score
  • UBPet C41 You are here 8.1/10Overall score

Models grouped by series name. A higher number doesn't guarantee a newer model: not all manufacturers publish release dates.

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