PETKIT

Purobot Ultra (P9903)

Name: PETKIT Purobot Ultra (P9903)
Brand: PETKIT

rotating drum, sifting + auto waste packing/bagging

$600+ 70% documented 4/6 litter types stated

The short version

PETKIT Purobot Ultra (P9903) uses a rotating drum, sifting + auto waste packing/bagging mechanism. The manufacturer states it takes clumping clay, tofu and mixed litter. It is stated for cats up to 22 lb by the manufacturer. 1 of the 6 questions buyers most often ask is not answered anywhere in the manufacturer's own material.

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PETKIT Purobot Ultra (P9903) — AI-assisted editorial representation, not a photograph — AI-assisted editorial representation, composed by PURRINDEX from documented product characteristics and official visual reference. Not manufacturer photography.

From documented evidence only

Who this appears to fit

Good fit if…

You use clumping clay, tofu and mixed litter — the manufacturer's manual states this is supported
Your heaviest cat is under 22 lb — the stated maximum according to the manufacturer

Not a documented fit if…

Your cat is over 22 lb — the manufacturer states that as the maximum

Each line above is derived from a value the manufacturer published; the source is shown against that value in the evidence table below. PURRINDEX draws no conclusion from a field a manufacturer left blank.

What sets this one apart

Key documented differences

Other pellet litter is supported only under stated conditions
The manufacturer publishes a litter particle limit (length <=12 mm, diameter <=3 mm), so litter choice is a stated constraint rather than a guess
Entry sits 10.43 in from the floor, which matters for kittens, senior or arthritic cats
Needs a 20.94 × 32.2 in floor area (674 sq in)
Some features are subscription-gated: PETKIT Care+ optional for extended video history
Uses brand-specific consumables (refill rings, N60 odor eliminator, trash bags)
Documented 10 L waste capacity
App-connected: PETKIT app; Care+ optional
Documented 24-month warranty

What the manufacturer states

Litter compatibility

Litter type	What the manufacturer states
Clumping clay	YesSupported
Tofu	YesSupported
Mixed	YesSupported
Crystal	—Manufacturer does not state
Pine pellet	—Manufacturer does not state
Other pellet	Cond.Supported with conditions

MANUAL: two litter sitters supplied - P99031 'suitable for tofu cat litter and mixed cat litter'; P99032 'suitable for fine granular cat litter such as mineral cat litter and bentonite'. Product page publishes a particle limit of length <=12 mm, diameter <=3 mm.

Manual https://instructions.petkit.com/App%20Manual/T6/T6_User%20Manual_EN_V1.3_2025080

Stated by the manufacturer

Important restrictions

Kittens: kittens younger than 6 months prohibited; cats under 1.5 kg prohibited

Original PURRINDEX drawings

Dimensions & footprint

Drawn to scale by PURRINDEX from the published dimensions below. An original drawing, not a product likeness and not manufacturer artwork.

Factual list, not a score

Documented mechanisms

20 high-precision sensors (infrared + weight)
xSecure

These are the mechanisms the manufacturer documents. PURRINDEX does not rank or score safety, and the number of listed mechanisms is not a measure of anything. Manufacturer

Known unknowns

What the manufacturer does not state

The manufacturer does not publish interior dimensions

Absence of documentation is not evidence of a shortcoming in the product. It is a statement about what you can and cannot find out before buying.

Same decision

Compare with the closest alternatives

Chosen by documented similarity — price band, form factor and the litter types each manufacturer states. Never by what a merchant pays.

Product image: AI-assisted editorial representation, composed by PURRINDEX from documented product characteristics and official visual reference. Not manufacturer photography.

HomerunPet

CS106

$600+

You use clumping clay, tofu and mixed litter — the manufacturer states this is supported
Your heaviest cat is under 25 lb — the stated maximum according to the manufacturer
Documented 12 L waste capacity

57% documented

View product Compare

PetSnowy

SNOW+

$600+

You use clumping clay, tofu, mixed and crystal litter — the manufacturer states this is supported
Documented 10 L waste capacity
Uses brand-specific consumables (auto-sealing waste bags)

You use other pellet litter — the manufacturer excludes or advises against it

37% documented

View product Compare

PETKIT

Purobot Max Pro 2

$400–600

You use clumping clay and mixed litter — the manufacturer's manual states this is supported
Your heaviest cat is under 22 lb — the stated maximum according to the manufacturer
Entry sits 10.03 in from the floor, which matters for kittens, senior or arthritic cats

You use pine pellet litter — the manufacturer excludes or advises against it

73% documented

View product Compare

Compare these side by side

Commercial layer

Buying options

PURRINDEX chooses the product first. Where you buy it is resolved afterwards and never affects what this site recommends — how that is enforced.

PETKIT directCJ / Goaffpro · not appliedCheck availability
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Every value carries its source

Full evidence

Manufacturer list price: $899.99

Physical

Exterior height: 24.09 in
Exterior width: 20.94 in
Exterior depth: 32.2 in
Unit weight: 32.18 lb
Clearance requirement: Manufacturer does not state

Entry & interior

Entry opening: Manufacturer does not state
Entry height from floor: 10.43 in
Interior dimensions: Manufacturer does not state
Litter bed: Manufacturer does not state

Stated cat limits

Minimum cat weight: 3.3 lb
Maximum cat weight: 22 lb
Stated maximum cats: 15 recognised profiles
Kitten restriction: kittens younger than 6 months prohibited; cats under 1.5 kg prohibited

Waste handling

Waste capacity: 10 L
Stated waste interval: up to 20 days, 1 cat
Waste drawer: Manufacturer does not state
Cycle delay: Manufacturer does not state

Automation & connectivity

Cleaning mechanism: rotating drum, sifting + auto waste packing/bagging
Power: 12 V / 4 A
Wi-Fi: 2.4 / 5 GHz
App: PETKIT app; Care+ optional
Weight tracking: Yes
Cat identification: AI facial recognition, up to 15 cats
Notifications: yowling detection, 24 h inactivity, urine pH abnormality
Camera field of view: Manufacturer does not state
Cycle interruption: Manufacturer does not state

Ownership

Proprietary consumables: refill rings, N60 odor eliminator, trash bags
Subscription-gated features: PETKIT Care+ optional for extended video history
Warranty: 24 months
Trial period: Manufacturer does not state