Litter-Robot 4 Self-Cleaning Litter Box by Whisker
🔥 #1 in Self-Cleaning Litter Boxes · New The gold-standard self-cleaning litter box for multi-cat homes
Litter-Robot 4 Self-Cleaning Litter Box with App & Multi-Cat Support
Whisker 4.4
#1
in Self-Cleaning Litter Boxes
$699 →
As of Jul 13, 2026
AI-estimated. See how we score. How we score Affiliate link — we may earn a commission
01 / Spec
Top features
Cleaning MechanismRotating globe with carbon-filtered waste drawer
Litter TypeClumping litter only
Waste Drawer Capacity~10–14 days (single cat), ~5–7 days (two cats)
The Litter-Robot 4 is the flagship automatic self-cleaning litter box from Whisker, featuring a rotating globe mechanism that sifts waste into a sealed carbon-filtered drawer after each use. It uses clumping litter and accommodates multiple cats with a large waste capacity (roughly 10–14 days for a single cat, 5–7 for two). The unit includes an app for usage tracking, weight monitoring, and health insights, plus WiFi connectivity and anti-pinch safety sensors.
Key strengths: Truly hands-off operation, excellent odor containment, proven reliability among multi-cat households, strong brand trust, and a year of WhiskerCare support included.
Key limitations: High upfront cost ($699), audible cycling noise, requires power and WiFi for full features, and some cats are initially hesitant of the automated cycle. Setup and ongoing maintenance are straightforward but not trivial.
Best for: Multi-cat homes and owners willing to invest in premium automation and app-based health tracking.
02 / Signals
Why it's hot
Premium automatic litter box with app tracking and multi-cat reliability.
- Value for money 54
- Review rating & velocity 100
- Community sentiment 100
- Brand reputation 100
- Search heat 100
- Est. return & defect rate 100
03 / Verdict
Pros & cons
Pros
- Truly hands-off scooping with reliable automation
- Large waste capacity suitable for 2+ cats
- App tracks litter usage, weight, and cat health
- Excellent odor control with sealed drawer and carbon filter
- Category-leading brand reputation and owner loyalty
- Anti-pinch safety sensors and proven durability
- WhiskerCare support included for 1 year
Cons
- Expensive upfront cost ($699)
- Audible cycling noise may startle some cats
- Requires WiFi for full app functionality
- Some cats hesitant of the automated cycle initially
- Not ideal for households with very small or elderly cats
- Litter type limited to clumping varieties
- Replacement parts and subscription costs add up
Cleaning MechanismRotating globe with carbon-filtered waste drawer
Litter TypeClumping litter only
Waste Drawer Capacity~10–14 days (single cat), ~5–7 days (two cats)
Multi Cat RatingExcellent for 2–3 cats
App ConnectivityYes, WiFi app with usage and weight tracking
Health TrackingYes, weight and frequency monitoring
NoiseModerate (audible hum/cycle)
Power SourcePlug-in AC (cord required)
DimensionsApproximately 25.5″W × 28.8″H × 26.8″D
Max Cat WeightUp to ~15 lbs per cat
Warranty1 year WhiskerCare included
05 / Your take
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05 / Compare
Compare the best alternative
One useful head-to-head in Self-Cleaning Litter Boxes, with the rows most likely to separate the contenders.
Open full comparison → 
PETKIT PuraMax 2 Automatic Self-Cleaning Litter Box with App Control
Cleaning Effectiveness
Fully sifts waste, clean litter every cycle Cleanest cycle Rake-based, full sift cycles
Odor Control
Sealed drawer with carbon filter, minimal odor Best odor control Sealed drawer + N50 2.0 carbon filter
Waste-Drawer Capacity
Large drawer, ideal for 2–3+ cats 76L interior, 7L waste bin, 15-day hold
06 / Rivals
Compare with
07 / Variations
Other options
Top pick
Litter-Robot 4 Self-Cleaning Litter Box by Whisker
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Litter-Robot 4 Automatic Self-Cleaning Litter Box with Bundle Accessories
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Litter-Robot 4 Automatic Self-Cleaning Litter Box (Supply Bundle)
White · Accessory Bundle
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Whisker Litter-Robot 4 Supply Bundle – Automatic Self-Cleaning Litter Box with App Tracking
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08 / Browse
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