Stop scooping. Four cats, one Litter-Robot.
I have run a Litter-Robot in this house since the 3 Connect. The 5 Pro is the first one that knows which cat used it, flags changes in bathroom habits, and stays quiet enough that Luna stopped side-eyeing it. Every model comes with a 90-day in-home trial, so if your cat refuses it, you send it back.
Which Litter-Robot should you buy?
Five models, four cats, years of daily use in one house. Here is every model side by side, then the deep dives.
| Feature | EVO | LR3 Connect | LR4 | LR5 | LR5 Pro |
|---|---|---|---|---|---|
| Price | $599 | $549 used | $699 | $799 | $899 |
| Cats | 1 to 2 | Up to 3 | Up to 4 | Up to 5 | Up to 5 |
| WiFi and app | ✓ | ✓ | ✓ | ✓ | ✓ |
| OmniSense detection | ✗ | ✗ | ✓ | ✓ | ✓ |
| WasteID odor targeting | ✗ | ✗ | ✗ | ✓ | ✓ |
| AI cameras and cat ID | ✗ | ✗ | ✗ | ✗ | ✓ |
| WhiskerTag RFID | ✗ | ✗ | ✗ | ✗ | ✓ |
| Multi-day waste drawer | ✗ | ✗ | ✗ | ✓ | ✓ |
| 90-day in-home trial | ✓ | n/a | ✓ | ✓ | ✓ |
| Our score | 8.2 | 8.8 | 9.6 | 9.2 | 9.5 |
Scores are ours, based on daily use in a four-cat house. The LR3 Connect is discontinued, so that price is the used market. Prices change often, check the current one before you buy.
Shop Litter-Robot with the 90-day trial →
The deep dives
- Litter-Robot 5 Pro vs Litter-Robot 4
- Litter-Robot 5 Pro review
- Litter-Robot 4 vs Litter-Robot 3
- Litter-Robot EVO review, the one-cat option
- Litter-Robot 3 Connect review, should you buy used?
- Best cat litter for a Litter-Robot
- The first 30 days with a Litter-Robot
- Litter box odor control setup
- Cheaper automatic litter boxes under $300
Watch it work
Litter-Robot 4 Shield: Worth It? 50-Second Honest Test
Cat Vomit Color Chart: What Each Color Means
Feline Facts, product tests on camera, and the four cats being themselves.
Litter-Robot questions we get asked most
Is the Litter-Robot worth the money?
Yes, especially with two or more cats. No daily scooping, far less odor, and on the 5 Pro the per-cat health tracking catches problems early. I was skeptical at $500 and after years of daily use I would not go back.
Which Litter-Robot should I buy?
One to four cats: the Litter-Robot 4 at $699 is the value pick. Three to five cats, or you want health monitoring: the 5 at $799 or the 5 Pro at $899. One cat in a small space: the EVO at $599. A used LR3 Connect still works but parts are getting scarce.
Will my cat actually use it?
Most cats adapt in one to two weeks. Penelope was using ours within a day, Minnie Mouse took thirteen. The trick is keeping the old box in place and letting them find it on their own. Do not force it. The full plan is in the 30-day transition guide.
What litter works best in a Litter-Robot?
Standard-weight clumping clay, unscented, medium grain, filled to the line. Lightweight litter crumbles in the sift and the dust triggers false drawer-full alerts. Pine, paper, wheat and crystal litters do not clump hard enough to sift.
How often do you empty the waste drawer?
Every four or five days with four cats. Empty it when the app says, not later, because a full drawer stops the cycle. A deodorizer pod in each new drawer bag handles the smell in between.
Does the Litter-Robot help with litter tracking?
It helps because of the step and fence at the entrance, but it does not solve it alone. Pair it with a double-layer trapping mat sized for two full steps and tracking drops to almost nothing.