Automatic Litter Boxes for Two or More Cats, by Days Between Emptying
With a second cat the drawer, not the mechanism, decides how often you deal with the box. The figure that matters is volume, and only boxes whose maker publishes it are here. Divide it by what two cats produce in a day and the CATLINK Scooper Young Pro-X and 2 others come out on top at about 9 days. 6 of the 22 makers rate their drawer for one cat well beyond what its volume supports, which is why the maker's claim sits beside the arithmetic rather than replacing it.
How this list is ordered: Ordered by days between emptying for two cats: drawer litres ÷ (2 × 0.7 L a day), then by price. 22 of the catalog’s boxes qualify. 2 of them carry a maker safety notice, not a recall — Neakasa M1 Lite Plus, Neakasa M1 Plus — shown on the card and the model’s page.

1CATLINK
~$400CATLINK Scooper Young Pro-X
Strip the app, the radar and the infrared out of the Luxury Pro-X and what is left is this offline version with the same globe and 13-litre drawer.
- Two cats · maker's one-cat claim
- ~9 days · 14 days claimed
- Type
- Rotating drum
Automate from ~3.5 lb / ~4 months- CATLINKScooper Luxury Pro-XRotating drum
2CATLINK
~$439CATLINK Scooper Luxury Pro-X
Few boxes carry more kinds of sensor than this one: microwave radar, infrared, a scale, an anti-pinch strip and a start-up self-check.
- Two cats · maker's one-cat claim
- ~9 days · 15 days claimed
- Type
- Rotating drum
Automate from ~3.5 lb / ~4 months 
3CATLINK
~$599CATLINK Scooper Pro Ultra
CATLINK's camera model shares the Luxury Pro-X body, 65-litre globe and 13-litre drawer, then adds a 1080p camera, UVA and UVC sterilisation and a 5 GHz radio.
- Two cats · maker's one-cat claim
- ~9 days · 14 days claimed
- Type
- Rotating drum
Automate from ~3.3 lb / ~4 months- CATLINKScooper Open-XOpen-top
4CATLINK
~$169CATLINK Scooper Open-X
For about $169 this is the cheapest open-top box listed, and one of the cheapest boxes of any kind.
- Two cats · maker's one-cat claim
- ~8 days · 15 days claimed
- Type
- Open-top
Automate from ~3.3 lb / ~6 months - ELS PETOrbitieRotating drum
5ELS PET
~$360ELS PET Orbitie
ELS PET's globe claims a lot for its drawer: 12 litres and up to 20 days for one cat, level with PETKIT's Purobot Ultra for the longest one-cat claim among the drums here.
- Two cats · maker's one-cat claim
- ~8 days · 20 days claimed
- Type
- Rotating drum
Automate from ~2.5 lb / ~3 months - MeowantMW-SC10Open-top
6Meowant
~$460Meowant MW-SC10
Meowant's 2026 open-top model pairs a 72-litre open structure with an 11.9-litre drawer, much larger than its enclosed drums get.
- Two cats · maker's one-cat claim
- ~8 days · 15 days claimed
- Type
- Open-top
Automate from ~3.3 lb / ~4 months 
7CATLINK
~$699CATLINK Scoop Robot Pro
CATLINK's 2026 flagship is a tall enclosed capsule with two cameras and multi-cat recognition included for life, with no subscription.
- Two cats · maker's one-cat claim
- ~8 days · 14 days claimed
- Type
- Rotating drum
Kitten threshold not published- NeakasaM1 Lite PlusOpen-top
8Neakasa
~$329Neakasa M1 Lite PlusSafety notice
About $50 under the M1 Plus, the Lite Plus keeps the open top, the 11.23-litre bin and the 2.2-to-33 lb rating.
- Two cats · maker's one-cat claim
- ~8 days · 14 days claimed
- Type
- Open-top
Automate from ~2.2 lb / ~3 months - NeakasaM1 PlusOpen-top
9Neakasa
~$380Neakasa M1 PlusSafety notice
Neakasa's current M1 keeps the open top that made the original popular with owners of big cats, and rates it for cats from 2.2 to about 33 lb.
- Two cats · maker's one-cat claim
- ~8 days · 14 days claimed
- Type
- Open-top
Automate from ~2.2 lb / ~3 months - OneisallCB01Open-top
10Oneisall
~$230Oneisall Ease S1
For about $230, the Ease S1 claims numbers usually reserved for boxes twice the price: an 11-litre drawer, cats from 2.6 to 30 lb, and a two-year warranty.
- Two cats · maker's one-cat claim
- ~7 days · 14 days claimed
- Type
- Open-top
Automate from ~2.6 lb / ~6 months 
11PETLIBRO
~$600PETLIBRO Luma Smart Litter Box
PETLIBRO's only litter box arrives with a camera said to recognise up to ten cats and an entrance PETLIBRO lists at 17.4 inches without saying which way it is measured.
- Two cats · maker's one-cat claim
- ~7 days · no claim
- Type
- Rotating drum
Automate from ~2.2 lb / ~6 months- PopurS7Open-top
12Popur
~$640Popur S7 Split Litter System
Popur splits the box in two: an open 20.5-by-14.2-inch tray where the cat goes, and a separate bin beside it that the tray tips waste into.
- Two cats · maker's one-cat claim
- ~7 days · 35 days claimed
- Type
- Open-top
Kitten threshold not published 
13PetSnowy
~$529PetSnowy SNOW+
Most drums narrow the litter list; this one widens it, naming clay, silica crystal, tofu and clumping pine or plant litters as compatible.
- Two cats · maker's one-cat claim
- ~7 days · 14 days claimed
- Type
- Rotating drum
Automate from ~3.3 lb / ~4 months- PETKITP9903Rotating drum
14PETKIT
~$800PETKIT Purobot Ultra
Unlike PETKIT's other drums, the Ultra bags its own waste: each full load is heat-sealed from a refill ring, so emptying means lifting out a closed bag.
- Two cats · maker's one-cat claim
- ~7 days · 20 days claimed
- Type
- Rotating drum
Automate from ~3.3 lb / ~6 months 
15PetSafe
~$550PetSafe ScoopFree OpenSky
PetSafe's open-top design has no hood and no globe, so the cat never walks into an enclosure at all.
- Two cats · maker's one-cat claim
- ~6 days · 14 days claimed
- Type
- Open-top
Automate from ~3 lb / ~6 months
16PETKIT
~$500PETKIT Purobot Max Pro 2
PETKIT's camera drum puts a 1080p, 210-degree lens beside the entry and claims it can tell up to 15 cats apart, even two of similar weight.
- Two cats · maker's one-cat claim
- ~5 days · 17 days claimed
- Type
- Rotating drum
Automate from ~3.3 lb / ~4 months
17CATLINK
~$219CATLINK Scooper SE Lite
About $40 less than the SE buys the same globe and 7-litre drawer with one fewer sensor: the microwave radar is gone, while infrared, weight and anti-pinch detection stay.
- Two cats · maker's one-cat claim
- ~5 days · 7 days claimed
- Type
- Rotating drum
Automate from ~3.5 lb / ~4 months
18CATLINK
~$259CATLINK Scooper SE
CATLINK pitches the SE at older cats with limited mobility, and the low, compact 21.5-inch body fits that.
- Two cats · maker's one-cat claim
- ~5 days · 7 days claimed
- Type
- Rotating drum
Automate from ~3.5 lb / ~4 months
19PETKIT
~$400PETKIT Purobot Max 3
PETKIT's third-generation drum, and the model its US store now redirects to from the old PuraMax 2 page.
- Two cats · maker's one-cat claim
- ~5 days · 15 days claimed
- Type
- Rotating drum
Automate from ~3.3 lb / ~6 months- MeowantMW-SC09Rotating drum
20Meowant
~$650Meowant MW-SC09 Plus
The biggest Meowant has a 106-litre drum and a 30 lb rating, matching the Litter-Robot 5 on paper, with an 8.27-inch entry step.
- Two cats · maker's one-cat claim
- ~4 days · 14 days claimed
- Type
- Rotating drum
Automate from ~3.3 lb / ~4 months - MeowantMW-SC01Rotating drum
21Meowant
~$220Meowant MW-SC01
Meowant's original drum steps down just 4.8 inches to its entry, low enough for a short-legged or arthritic cat.
- Two cats · maker's one-cat claim
- ~4 days · no claim
- Type
- Rotating drum
Automate from ~3 lb / ~4 months 
22PetSafe
~$400PetSafe ScoopFree SmartSpin
Two PetSafe documents disagree about this drum.
- Two cats · maker's one-cat claim
- ~4 days · 14 days claimed
- Type
- Rotating drum
Automate from ~2.5 lb / ~6 months
Other shortlists
- Self-Cleaning Litter Boxes Rated for Large Breeds
- Automatic Litter Boxes That Detect the Smallest Cats
- What Tray, Cartridge and Refill-Ring Litter Boxes Cost to Run
- Self-Cleaning Litter Boxes That Take Tofu Litter
- Low-Step Automatic Litter Boxes for Older Cats
- Automatic Litter Boxes by Published Noise Rating
- Automatic Litter Boxes Under $300