Self-cleaning litter box · UPFAS

UPFAS Automatic Litter Box with Weight Monitoring

A budget drum box for medium cats

Updated October 2026

Quick verdict

A capable budget box.

Strength
Weight tracking at a low price.
Trade-off
Sized for medium cats.
Right buyer
Budget buyers with medium-size cats.
Noise (seller)
35 dB
Dimensions (seller)
22.44"L x 18.23"W x 19.84"H
Product weight
23 pounds
Prices change often; the button shows today's price.

Each button opens this exact model. We may earn a commission on tracked links; it never changes what we publish. Disclosure

Why it matters

UPFAS sizes this drum for medium cats and kittens, in one- or multi-cat homes. The app connects over 2.4 GHz Wi-Fi or Bluetooth and logs each visit's weight, time spent and frequency.

UPFAS puts cleaning noise below 35 dB. The drum lifts out and is fully washable. It needs about 30 minutes of assembly; UPFAS suggests watching its video and reading the manual first.

Who it's for, and who should skip it

Good fit if

  • Budget buyers
  • Medium cats
  • Bluetooth setup

Look elsewhere if

  • Homes without a level spot near an outlet
  • Cats that are afraid of moving parts
  • Kittens under the maker's minimum weight

Pros and cons

Pros

  • Low price
  • Weight tracking
  • Quiet

Cons

  • Sized for medium cats
  • Assembly required
  • Cat count not stated

Limitations to weigh

  • Set it on a hard, level floor near an outlet. Weight sensors read wrong on carpet or uneven tile, which can stop or trigger cycles.
  • Automatic cycling has a minimum cat weight; keep automatic mode off for kittens under it and run cleans manually.
  • Empty the waste bin before it's full and keep spare bags; an overfull bin is the most common cause of a stalled cycle.
  • Running costs come from the bags, liners, filters and litter the maker specifies. The compatibility checker lists refills that state they fit.

Specifications

Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.

MaterialPolypropylene (PP)Retailer
Dimensions (seller)22.44"L x 18.23"W x 19.84"HRetailer
Product weight23 poundsRetailer
In the pack1 CountRetailer
Features (seller)Automatic litter boxRetailer
In the boxAutomatic self cleaning cat litter boxRetailer
Model numberCAST-LB500CRetailer
Warranty1 YearRetailer
Noise (seller)35 dBRetailer

Alternatives worth comparing

More self-cleaning litter boxes we cover

All self-cleaning litter boxes, compared in one table

Final verdict

Fine for medium cats on a budget; larger cats need a bigger box.

Where to buy

Our links open this exact model's product page. Prices and stock change; check what's included before you order.

Prices change often; the button shows today's price.

Each button opens this exact model. We may earn a commission on tracked links; it never changes what we publish. Disclosure

Questions buyers ask

What size cats is the UPFAS box for?
Medium cats and kittens, per UPFAS.
Does it need assembly?
Yes, about 30 minutes.