Litter Robot 3 Connect vs Litter Robot 4
Verdict: Litter-Robot 4 outperforms on capacity and odor control with 10-14 day drawer life versus 8-10 days on the 3 Connect per Whisker specs and Chewy reviews. The 3 Connect remains a solid lower-cost option for 1-2 cat homes but trails in sensor accuracy and quietness. Litter-Robot 4 wins for most users needing reduced maintenance.
How we scored it
Spec verificationOwner sentimentLive pricing (4h refresh)Editorial review
Our methodology
Winner: Litter-Robot 4
Litter Robot 3 Connect: 7/10
Litter Robot 4: 8.5/10
Spec-by-spec comparison
| Litter Robot 3 Connect | Litter Robot 4 | |
|---|---|---|
| Waste Drawer Capacity | 8-10 days | 10-14 days |
| Weight | 24 lbs | 28 lbs |
| Dimensions | 28.5 x 23 x 29.5 inches | 29.5 x 24.5 x 30 inches |
| Connectivity | Wi-Fi app control | Wi-Fi app control with notifications |
Litter Robot 3 Connect
What works
- Reliable automatic raking cycle
- Lower entry price point
- Proven long-term durability in owner reports
What doesn't
- Smaller waste capacity requires more frequent emptying
- Basic odor control compared to newer models
Litter Robot 4
What works
- Larger waste drawer and improved sensors
- Better odor filtration system
- Quieter operation and easier maintenance
What doesn't
- Higher purchase price
- Slightly larger footprint
Bottom line
Our pick: Litter-Robot 4.
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