Rotating drum~$899Whisker
What the extra $100 over the LR5 buys is a pair of AI cameras: one identifies which cat walked in by face, the other looks down at the litter bed. Everything mechanical matches the LR5, down to the 3–30 lb range and five-cat rating. It is also the only Litter-Robot that will join a 5 GHz network.
Approx. price
~$899
maker's store, not a live price
Best for: Multi-cat homes where telling similar-weight cats apart matters
Whisker says the sensor detects cats from 3 lb. At the usual rate of about a pound a month, that means leaving automatic cleaning off until roughly 3 months. Below the threshold, a kitten may not register at all, and the box could start a cycle with it inside.
Detection: weight, infrared / radar, camera. The maker does not state any anti-pinch protection.
How minimum weights work, and what to do below themThe maker publishes no drawer volume, so the days cannot be worked out. Its own claim is up to 10 days for one cat.
The two lists above are drawn from the maker’s own pages, manuals and prices, not from owner reports. Where owner discussion has been read it appears in its own section below, so the two are never mistaken for each other.
The Litter-Robot 5 Pro is Whisker's most expensive box, and it has drawn the most divided reaction of any model in the community. Owners broadly agree the hardware is a step up: the build feels premium, the globe is roomier, and cats take to it. Many owners with one or two cats report using it happily with no mechanical faults.
The complaints centre on software rather than the drum. WasteID, which is meant to tell urine from stool and adjust the cycle, is widely described as unreliable, and owners blame it for smearing wet clumps. Camera-based cat identification works for some and not for others. Recording from the interior camera was missing for months after launch, while the outward-facing camera could record. Bug lists add laser-board faults, false alerts and slow camera loading, and Whisker's pace of fixes is a sore point.
Buy it for Whisker's largest globe and the camera features, and only if being an early adopter of software that is still changing sounds acceptable. Owners who mainly want reliable self-cleaning frequently recommend the LR4 or the standard LR5 instead, and anyone buying for WasteID or visual identification should read recent owner experience first.
Owner experience is mixed at best. Many describe it misclassifying visits, and some blame it for cycling on wet clumps and smearing the globe. Owners who did not buy it for WasteID are generally happier with the robot.
For months after launch only the outward-facing camera could record; the interior camera offered live view only. Check Whisker's current release notes before buying if interior recordings matter to you.
Some owners say it does well after a first month of learning; others with similar-weight cats find it unreliable even with the paid camera identification and RFID tags.
Owners most often mention laser-board faults, position faults and false low-litter alerts. Some are rare and harmless; others were resolved with a reset walked through by support, and a few units were replaced.
Owners point out that an out-of-warranty base replacement for the LR5 Pro costs $649, which is a large share of the robot's price and the reason several recommend the extended cover.
Rotating drum
Best for: Large multi-cat homes that want visit-level tracking without a camera
Rotating drum
Best for: Two or three average cats in a home that already uses clay clumping litter
Rotating drum
Best for: One or two average-size cats in an apartment