Whisker
Comparison · 2 robots
Whisker Litter-Robot 5 · 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
- 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 5Whisker 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
7476
- Whisker Litter-Robot 574
- Whisker Litter-Robot EVO76
18median 72 across 433 scored robots100
Coverage and navigation10% of score
Does it work the whole area, and hold that between runs
6868
- Whisker Litter-Robot 568
- Whisker Litter-Robot EVO68
0median 70 across 421 scored robots100
Edge-case recovery10% of score
Does it recover from the failures its category presents
6070
- Whisker Litter-Robot 560
- Whisker Litter-Robot EVO70
18median 52 across 320 scored robots100
Operating envelope4% of score
How far conditions can vary before performance drops
6062
- Whisker Litter-Robot 560
- Whisker Litter-Robot EVO62
28median 68 across 397 scored robots100
Dependability
Field failure rate16% of score
Documented hardware failures per owner-year
7070
- Whisker Litter-Robot 570
- Whisker Litter-Robot EVO70
6median 70 across 359 scored robots100
Software stability14% of score
Whether updates fix more than they break
6570
- Whisker Litter-Robot 565
- Whisker Litter-Robot EVO70
15median 65 across 342 scored robots100
Support longevity10% of score
Committed parts, service and updates, with dates
7272
- Whisker Litter-Robot 572
- Whisker Litter-Robot EVO72
0median 62 across 429 scored robots100
Ownership burden
Routine maintenance12% of score
Hands-on time it asks for in normal operation
7474
- Whisker Litter-Robot 574
- Whisker Litter-Robot EVO74
22median 67 across 434 scored robots100
Consumables8% of score
Parts that must be bought to keep it working
6466
- Whisker Litter-Robot 564
- Whisker Litter-Robot EVO66
8median 69 across 434 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.
Price30 with a published figure
$799$599
- Whisker Litter-Robot 5$799
- Whisker Litter-Robot EVO$599
$29median $649.50$100,000
Weight39 with a published figure
28.7 lbs21.5 lbs
- Whisker Litter-Robot 528.7 lbs
- Whisker Litter-Robot EVO21.5 lbs
0.1 lbsmedian 24.3 lbs2,646 lbs
Height36 with a published figure
29.9 in27.6 in
- Whisker Litter-Robot 529.9 in
- Whisker Litter-Robot EVO27.6 in
0.9 inmedian 22.8 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
Weight tracking separates cats in the app, and The Quality Edit saw weigh-ins that did not register.
Drawer emptying drops to about every 10 days with one cat; long-term trend history sits behind a $7.99 monthly membership.
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
- Kittens under 3 lb
- Whisker says kittens must weigh at least 3 lb to use it in automatic mode.
- Tight closets or under-counter spots
- Whisker's drawings put it at 22.2 in wide, 29.9 in tall and 27.25 in deep, with the drawer pulling out at the front.
- Homes with only 5 GHz Wi-Fi
- Whisker says it requires a 2.4 GHz network; the app, weight tracking and alerts depend on that connection.
- Owners using crystal or plant-based litter
- Whisker recommends clumping clay litter and says crystal and plant-based litters can upset the drawer-full sensor or fail to sift.
- Owners who want full history without a subscription
- The free app shows a 7-day view; up to two years of trends needs Whisker+ at $7.99 a month, per Whisker.
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
- Weekly: Empty the waste drawer and fit a new liner; Whisker cites about every 10 days with one cat.
- As needed: Top up clumping clay litter to the fill line, never above it.
- Monthly: Replace the carbon filter and OdorTrap packs, which Whisker suggests every 2 to 4 weeks.
- As needed: Sweep scattered litter around the step and entry.
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 | Provisional | 5 | Sep 2026 |
| Whisker Litter-Robot EVO | Provisional | 8 | Sep 2026 |
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