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.

  1. CATLINK Scooper Young Pro-X self-cleaning litter box

    1CATLINK

    ~$400

    CATLINK 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
  2. CATLINKScooper Luxury Pro-XRotating drum

    2CATLINK

    ~$439

    CATLINK 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
  3. CATLINK Scooper Pro Ultra self-cleaning litter box

    3CATLINK

    ~$599

    CATLINK 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
  4. CATLINKScooper Open-XOpen-top

    4CATLINK

    ~$169

    CATLINK 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
  5. ELS PETOrbitieRotating drum

    5ELS PET

    ~$360

    ELS 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
  6. MeowantMW-SC10Open-top

    6Meowant

    ~$460

    Meowant 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
  7. CATLINK Scoop Robot Pro self-cleaning litter box

    7CATLINK

    ~$699

    CATLINK 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
  8. NeakasaM1 Lite PlusOpen-top

    8Neakasa

    ~$329

    Neakasa 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
  9. NeakasaM1 PlusOpen-top

    9Neakasa

    ~$380

    Neakasa 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
  10. OneisallCB01Open-top

    10Oneisall

    ~$230

    Oneisall 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
  11. PETLIBRO Luma Smart Litter Box self-cleaning litter box

    11PETLIBRO

    ~$600

    PETLIBRO 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
  12. PopurS7Open-top

    12Popur

    ~$640

    Popur 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
  13. PetSnowy SNOW+ self-cleaning litter box

    13PetSnowy

    ~$529

    PetSnowy 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
  14. PETKITP9903Rotating drum

    14PETKIT

    ~$800

    PETKIT 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
  15. PetSafe ScoopFree OpenSky self-cleaning litter box

    15PetSafe

    ~$550

    PetSafe 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
  16. PETKIT Purobot Max Pro 2 self-cleaning litter box

    16PETKIT

    ~$500

    PETKIT 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
  17. CATLINK Scooper SE Lite self-cleaning litter box

    17CATLINK

    ~$219

    CATLINK 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
  18. CATLINK Scooper SE self-cleaning litter box

    18CATLINK

    ~$259

    CATLINK 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
  19. PETKIT Purobot Max 3 self-cleaning litter box

    19PETKIT

    ~$400

    PETKIT 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
  20. MeowantMW-SC09Rotating drum

    20Meowant

    ~$650

    Meowant 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
  21. MeowantMW-SC01Rotating drum

    21Meowant

    ~$220

    Meowant 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
  22. PetSafe ScoopFree SmartSpin self-cleaning litter box

    22PetSafe

    ~$400

    PetSafe 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