Petkit PuroBot Ultra vs Whisker Litter-Robot 5

Researched by Riley Hart · prices checked Oct 26, 2026

Short answer · checked Oct 26, 2026

As of Oct 26, 2026, the Petkit PuroBot Ultra costs $699 and the Whisker Litter-Robot 5 costs $799, so the Petkit PuroBot Ultra is $100 cheaper. The Petkit PuroBot Ultra has a published review score and ranks #9 in our self cleaning litter boxes ranking; the Whisker Litter-Robot 5 is not scored yet. Pick the Petkit PuroBot Ultra for health tracking with minimal handling. Pick the Whisker Litter-Robot 5 for large cats and multi cat homes.

Litter box

PetkitPuroBot Ultra

Cat weight: 3.3 lb and up
Litter: Clumping only
Waste drawer: Auto sealed bags

6.8/10Price tracked daily

$699Check price at Sam's Club →

The PuroBot Ultra is for owners who want camera health logs and sealed waste bags they rarely touch. It is expensive, deep at 32.2 inches, and Cats.com found larger cats avoided it. Several features sit behind a subscription.

Full Petkit PuroBot Ultra review →

Litter box

WhiskerLitter-Robot 5

Cat weight: 3 to 30 lb
Max cats: Up to 5
Litter: Clumping clay
Waste drawer: Sealed

ON SALEPrice tracked daily

$799Check price at Whisker store →

The sensible pick in the Litter-Robot 5 family: same globe, drawer and weight tracking as the Pro without the cameras. It suits larger cats and multi cat homes better than the Litter-Robot 4, but the LitterHopper add on is listed separately and settings live only in the app.

Full Whisker Litter-Robot 5 review →

Side by side

	Petkit PuroBot Ultra	Whisker Litter-Robot 5
Price	$699	$799
3 year cost	$699	$955
Our score	6.8/10	Not scored yet
Rank in Litter box	#9	#18
Status	on sale	on sale
Warranty	1 year (per Catster)	1 year (WhiskerCare), extendable to 3 years; 90 day in home trial
Cat weight range	3.3 lb and up (Catster)	3 to 30 lb
Max cats	Not stated; identifies cats by face, size and coat	Up to 5
Waste drawer	Auto sealed bags, 14+ days for one cat (Catster)	Sealed drawer with carbon filter, up to 10 days for one cat (maker claim)
Sensors	20 sensors plus a rotating camera (Sam's Club listing)	Multiple lasers, weight sensing, SmartScale, WasteID urine vs stool detection, SafeCat system
App	Petkit app with live camera, two way talk and logs; full playback needs a Care+ plan	Whisker app (2.4 GHz WiFi); free tier shows 7 days of visits and weights
Litter type	Clumping only, clay or tofu; two sifters included	Clumping clay recommended; plant based, non clumping, paper and pellet litters not recommended
Size	21 x 32.2 x 24 in, 32 lb (Catster)	22 x 27 in footprint, 29.9 in tall, 15.75 x 15.75 in entry, 28.7 lb empty
Noise	n/a	No dB rating published; QuietSift motor
Best for	health tracking with minimal handling	large cats and multi cat homes
Skip if	you have large cats or want no subscription	you want the lowest price from Whisker

Specs are maker claims unless a reviewer is named. Prices from the stores we link, checked daily.

What reviewers found

Petkit PuroBot Ultra

Cats.com (3.8/5): Six weeks of testing: scooping and sealing worked well, but larger cats would not use it, face recognition sometimes confused two cats, bags tore easily and litter leaked around the edges. Source
Catster (4.9/5): Six weeks with one cat: no litter smell noticed, and the camera helped the tester spot a period of constipation; filling it with litter was awkward and there is no low litter alert. Source

Whisker Litter-Robot 5

Cats.com: Described in the October 2026 roundup as nearly the same as the 5 Pro without cameras, saving $100. Source
9to5Toys: Review of the 5 series found it quieter, smoother and less sensitive to placement on carpet than the Litter-Robot 4, with a better carbon filter. Source

Pros and cons

Petkit PuroBot Ultra

Pros

Seals waste into bags automatically
Camera helped a Catster tester spot constipation
Strong odor control in two reviews
Open front never fully closes

Cons

Larger cats avoided it in Cats.com testing
Face ID mixed up two cats at times
Full playback needs a Care+ subscription
Thin bags tore; no low litter alert

Whisker Litter-Robot 5

Pros

Rated for cats up to 30 lb and up to 5 cats
WasteID tells urine from stool
Free app tracking without a subscription
90 day in home trial

Cons

$799 is still a high entry price
No camera
Large footprint at 22 x 27 in
Reviewers prefer the Litter-Robot 4's raised buttons

Questions buyers ask

Which is better, the Petkit PuroBot Ultra or the Whisker Litter-Robot 5?

The Petkit PuroBot Ultra has a published review score and ranks #9 in our self cleaning litter boxes ranking; the Whisker Litter-Robot 5 is not scored yet. Pick the Petkit PuroBot Ultra for health tracking with minimal handling. Pick the Whisker Litter-Robot 5 for large cats and multi cat homes.

Which is cheaper?

The Petkit PuroBot Ultra at $699, versus $799 for the Whisker Litter-Robot 5, checked Oct 26, 2026. Over 3 years with running costs: $699 vs $955.

What is the difference between the PuroBot Ultra and the Litter-Robot 5?

Cat weight range: 3.3 lb and up (Catster) on the PuroBot Ultra, 3 to 30 lb on the Litter-Robot 5. Max cats: Not stated; identifies cats by face, size and coat on the PuroBot Ultra, Up to 5 on the Litter-Robot 5. Waste drawer: Auto sealed bags, 14+ days for one cat (Catster) on the PuroBot Ultra, Sealed drawer with carbon filter, up to 10 days for one cat (maker claim) on the Litter-Robot 5.

Also consider

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Litter box · Catlink Scooper Open-X $2308.9/10 Litter box · Neakasa M1 $4308.5/10 Litter box · CatGenie A.I. Self-Washing Cat Box $4697.7/10 Litter box · PetSnowy SNOW+ $5297.7/10

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