Whisker Litter-Robot 5

Whisker Litter-Robot 5 is a rotating globe box for cats of 3 to 30 lb, by the maker's figures. Its sources claim 5 of the 6 safety layers: weight sensor, entry sensor, anti-pinch, cycle delay and stop button. Not found in the sources yet: open entry. The brand says it cleans without Wi-Fi. Its sources give two different figures for the drawer lasts, one cat, the depth, the height and the minimum cat weight; the spec sheet shows both, and lists use the more cautious one.

17 of 22 key fields sourcedData checked October 8, 2026

Video from Litter-Robot, the brand's own YouTube channel, shown so you can see the mechanism move. It is the brand's advertising, not a source for any value on this page, and it may mention prices or offers we do not check. Open on YouTube

Safety layers

Which protections a source claims for this model. A claim on paper, not a test result.

Weight sensorEntry sensorAnti-pinchOpen entryCycle delayStop button
  • Weight sensor: claimed, with a source
  • Entry sensor: claimed, with a source
  • Anti-pinch: claimed, with a source
  • Open entry: not found in the sources yet
  • Cycle delay: claimed, with a source
  • Stop button: claimed, with a source
Claimed, with a sourceNot found in the sources yetNot claimed anywhere we looked

Spec sheet

Manufacturer claims, not our measurements. The numbers in brackets lead to the source list at the bottom of the page.

How it cleans
Rotating globe[1]
Minimum cat weight
Brand site: 3 lb (1.4 kg) claimed[2]. Manual: 2 lb (0.9 kg) claimed[1].
Heaviest cat
30 lb (13.6 kg) claimed[2][1]
Cats per unit
5 claimed[2]
Step-in height (floor to entry edge)
7 in (17.8 cm) claimed[1]
Entry opening height
15.8 in (40 cm) claimed[2][1]
Width
22 in (55.9 cm) claimed[2][1]
Depth
Manual: 27.3 in (69.2 cm) claimed[1]. Brand site: 27 in (68.6 cm) claimed[2].
Height
Manual: 29.5 in (74.9 cm) claimed[1]. Brand site: 29.9 in (75.9 cm) claimed[2].
Unit weight
28.7 lb (13 kg) claimed[2]
Litter it takes
clumping litter (clay-clumping recommended); litter beads/crystals small enough to pass the screen (translucent/white not recommended); no non-clumping, loose-clumping, newspaper or wood pellet litter[2][1]
Without Wi-Fi
Runs without Wi-Fi[3][1]
App
Whisker app[2][1]
Weight sensor
Yes[1]
Entry presence sensor
Yes (laser curtain)[1]
Anti-pinch
Yes[1]
Default delay before cleaning
7 min[1]
Stop button on the unit
Yes[1]
Bags and filters
Ordinary bags and litter, no brand-only refills[1]
Warranty
12 months (brand claim)[2]
Drawer lasts, one cat
Brand site: 10 days claimed[2][1]. Manual: 7 days claimed[1].

Key fields not found in the sources yet: Entry, Drum or tray volume, Waste drawer, FCC ID, FCC grantee (company that filed). Other details not found: Noise.

When it acts up

From the troubleshooting section of the manual, in plain words.

LED blinks yellow

Why: Attention needed: waste drawer almost full, filter due, or WiFi connection lost.

What to do: Check the LCD screen; empty the drawer or replace the filter, then press Cancel. After a WiFi outage the unit reconnects by itself.[1]

LED blinks red and the robot stops cycling

Why: The waste drawer is full (detected on three cycles in a row) or the drawer was removed.

What to do: Empty or reinstall the drawer, press Cancel to clear the alert, then short-press Cancel to zero the SmartScale.[1]

False 'drawer full' warning

Why: The liner rides above the drawer sides, or a dark bag or white/translucent litter confuses the sensor.

What to do: Push the bag below the rim, use a white bag, avoid translucent or white litter.[1]

All 8 problems and fixes

Listed in and related reading

Which automatic litter boxes notice a kitten?Low entries for senior cats with stiff jointsAutomatic litter boxes for big catsAutomatic litter boxes for multi-cat homesCompact automatic litter boxesAutomatic litter boxes for crystal litterAutomatic litter boxes that keep cleaning without Wi-FiAre automatic litter boxes safe for cats?Why is my self-cleaning litter box drum not turning?

Sources

  1. Litter-Robot 5 Instruction Manual (Whisker; covers LR5 and LR5 Pro), p. 3, 8, 16-17, 19-24, 29, 31-32, 34-35, 41-43, 48, checked Oct 8, 2026
  2. Litter-Robot 5 product page (Whisker), Details / Specs / FAQ, checked Oct 8, 2026
  3. Litter-Robot FAQ (Whisker), Can I use Litter-Robot without the app?, checked Oct 8, 2026