PuraMax 2 (P9902)

• Tofu, Mixed and Other pellet litter is supported only under stated conditions
• The manufacturer publishes a litter particle limit (length <=1.2 cm, diameter <=3 mm), so litter choice is a stated constraint rather than a guess
• Needs a 24.41 × 21.18 in floor area (517 sq in)
• Uses brand-specific consumables (N50 2.0 deodorizer, waste bags)
• Documented 7 L waste capacity
• App-connected: PETKIT app
• Documented 24-month warranty

• Kittens: cats older than 6 months

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

• xSecure
• infrared sensor
• weight sensors
• accident protection

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. Retailer-declared

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

rotating drum

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

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rotating drum

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

PETKIT

Purobot Max 3 (P9906)

$400–600

• You use clumping clay, tofu and mixed litter — the manufacturer states this is supported
• Your heaviest cat is under 22 lb — the stated maximum according to the manufacturer
• Entry sits 8.03 in from the floor, which matters for kittens, senior or arthritic cats

You use crystal litter — the manufacturer excludes or advises against it

57% documented

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rotating globe

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

Whisker

Litter-Robot EVO

$400–600

• You use clumping clay litter — the manufacturer's manual states this is supported
• Your heaviest cat is under 19 lb — the stated maximum according to the manufacturer
• Entry sits 10.75 in from the floor, which matters for kittens, senior or arthritic cats

You use tofu, pine pellet and other pellet litter — the manufacturer excludes or advises against it

80% documented

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Price band

$400–600

Band only

Why a band and not a price

The observed price came from a retail listing rather than the manufacturer. PURRINDEX shows a band in that case: retailer prices change constantly and we do not display live retail pricing or marketplace data.