Whisker
Comparison · 2 robots
Whisker Litter-Robot 5 Pro · Whisker Litter-Robot EVO
All specialty robots. Every measure below is plotted against the full class, so a difference can be read against how much the class itself varies.
- Whisker Litter-Robot 5 Pro
- Whisker Litter-Robot EVO
01 Classification
What each one does on its own.
The Autonomy Ladder is the same five rungs for every robot on the site. A rung describes the conditions a robot handles without you, not how good it is.
V
Generalized
Any task, any setting
IV
Environmental
Handles new obstacles without help
III
Conditional
Finishes familiar jobs on its own
Whisker Litter-Robot 5 ProWhisker Litter-Robot EVO
II
Assisted
Runs preset routines, needs rescue
I
Manual
One action, on command
02 Assessment
Where they actually differ.
The Robovations Score is nine inputs across three pillars, each weighted as shown and each scored so that more is better. A robot can lead on one and trail on another, which is the point of showing them apart. Cost of ownership and data handling are reported on each robot's own page and are never averaged into the score.
Capability
Task completion16% of score
Does it finish the job it is sold to do, unattended
7576
- Whisker Litter-Robot 5 Pro75
- Whisker Litter-Robot EVO76
18median 72 across 428 scored robots100
Coverage and navigation10% of score
Does it work the whole area, and hold that between runs
7068
- Whisker Litter-Robot 5 Pro70
- Whisker Litter-Robot EVO68
0median 70 across 416 scored robots100
Edge-case recovery10% of score
Does it recover from the failures its category presents
6270
- Whisker Litter-Robot 5 Pro62
- Whisker Litter-Robot EVO70
18median 52 across 317 scored robots100
Operating envelope4% of score
How far conditions can vary before performance drops
5862
- Whisker Litter-Robot 5 Pro58
- Whisker Litter-Robot EVO62
28median 68 across 392 scored robots100
Dependability
Field failure rate16% of score
Documented hardware failures per owner-year
7070
- Whisker Litter-Robot 5 Pro70
- Whisker Litter-Robot EVO70
6median 70 across 355 scored robots100
Software stability14% of score
Whether updates fix more than they break
6570
- Whisker Litter-Robot 5 Pro65
- Whisker Litter-Robot EVO70
15median 65 across 339 scored robots100
Support longevity10% of score
Committed parts, service and updates, with dates
7272
- Whisker Litter-Robot 5 Pro72
- Whisker Litter-Robot EVO72
0median 62 across 424 scored robots100
Ownership burden
Routine maintenance12% of score
Hands-on time it asks for in normal operation
7674
- Whisker Litter-Robot 5 Pro76
- Whisker Litter-Robot EVO74
22median 67 across 429 scored robots100
Consumables8% of score
Parts that must be bought to keep it working
6666
- Whisker Litter-Robot 5 Pro66
- Whisker Litter-Robot EVO66
8median 69 across 429 scored robots100
03 Measured against the class
How far apart is a long way?
A number only means something next to the spread it sits in. Each track below is the real range across every classified robot in the class, with the median marked.
Price29 with a published figure
$899$599
- Whisker Litter-Robot 5 Pro$899
- Whisker Litter-Robot EVO$599
$29median $599.99$100,000
Weight38 with a published figure
29.6 lbs21.5 lbs
- Whisker Litter-Robot 5 Pro29.6 lbs
- Whisker Litter-Robot EVO21.5 lbs
0.1 lbsmedian 24.3 lbs2,646 lbs
Height35 with a published figure
29.9 in27.6 in
- Whisker Litter-Robot 5 Pro29.9 in
- Whisker Litter-Robot EVO27.6 in
0.9 inmedian 21.8 in82 in
Not compared, because fewer than two of these robots carry a published figure: Suction, Runtime, Charge time, Noise.
04 Ownership
What the numbers leave out.
The trade-off
What each design gives up to be good at what it is good at.
Whisker Litter-Robot 5 Pro
You are trading scooping for supervision: the globe keeps you from touching soiled litter, not from being recorded by two always-on cameras aimed at the box.
Litter lock-in: the sifting mechanism is built for clumping litter, so switching to a preferred crystal or natural formula isn’t possible on this hardware.
AI cat identification and extended video storage sit behind a paid Whisker+ subscription, so the headline AI feature is not fully included at the $899 price.
Whisker Litter-Robot EVO
The compact body fits where larger Litter-Robots will not, and its smaller waste drawer fills faster, per Hello Subscription.
Weight tracking adds health insight, but readings can be off when a cat leans out onto the step, per Apartment Therapy.
Who each one is wrong for
Stated by the record itself. A robot being wrong for a household is a fact about fit, not a fault.
Whisker Litter-Robot 5 Pro
- Households running crystal or silica non-clumping litter
- The globe's sifting grate is designed around clumping litter; crystal and other non-clumping formulas do not separate correctly and are not manufacturer-supported.
- Homes with kittens under the 3 lb sensor minimum
- The weight sensor confirms a session has ended starting at a registered 3 lb minimum; kittens below that weight cannot reliably trigger automatic cycling until they grow.
- Households not comfortable with an always-on in-home camera
- Both the forward-facing and in-globe cameras record and will capture people in the room, not only the cat; recordings can be disabled or deleted, but the hardware ships active.
- Buyers expecting AI cat identification included at the base price
- Facial-recognition cat identification and expanded video storage are gated behind a paid Whisker+ membership; the $899 unit ships with camera hardware but not the full AI tier active.
Whisker Litter-Robot EVO
- Households with three or more cats
- Whisker rates the EVO for two cats at most; Vetstreet notes the Litter-Robot 5 and 5 Pro handle up to five.
- Cats over 19 lb or kittens under 3 lb
- Whisker's weight range is 3 to 19 lb. Lighter kittens need semi-automatic use with the unit switched off between cycles.
- Owners committed to non-clumping litter
- Whisker says pine, paper, pellet and most plant-based litters do not sift properly, and white crystal litter can confuse the drawer sensor.
- Homes with only 5 GHz Wi-Fi
- App notifications and history need a 2.4 GHz network, and Whisker sells and supports the EVO only in the US and Canada.
What stays your job
The upkeep ownership hands back to you, whatever the autonomy level says.
Whisker Litter-Robot 5 Pro
- Weekly: Empty and reline the waste drawer; tie-and-toss bag.
- Weekly: Top off litter to the fill line as automatic sifting reduces the level.
- Monthly: Wipe down the globe interior, base and camera lenses to prevent residue buildup.
- Every 3-6 months: Replace the carbon odor filter.
- As needed: Clear an obstruction or reset a cycle paused and flagged by the app.
- As needed: Reconnect the unit to WiFi if remote alerts or camera streaming stop working.
Whisker Litter-Robot EVO
- As needed: Empty the waste drawer and replace the liner when the drawer-full indicator lights; Whisker suggests up to 7 days for one cat.
- Monthly: Replace the carbon filter and OdorTrap packs, which Whisker recommends every 2 to 4 weeks.
- As needed: Top up clumping clay litter to the fill line.
- As needed: Deep-clean the globe using Whisker’s modular EasyClean design.
05 Evidence
How much each of these is standing on.
Classifications rest on different depths of evidence. A pre-release assessment and a verified one are not the same kind of claim.
| Robot | Evidence status | Sources reviewed | Last assessed |
|---|---|---|---|
| Whisker Litter-Robot 5 Pro | Provisional | 5 | Aug 2026 |
| Whisker Litter-Robot EVO | Provisional | 8 | Sep 2026 |
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