THE COMPARED PICK
Whisker Litter-Robot 4 (Base Unit)
LOWEST · TIED — the button goes to Amazon
Prices checked Oct 17, 2026
PET SUPPLIES
Whisker Litter-Robot 4 Self-Cleaning Litter Box
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WHY THIS COMPARISON
The self-cleaning box everyone measures the others against. Watch the bundle trap: the $749–$799 listings add supplies — they are not a price cut on the same box.
This comparison is based on prices checked Oct 17, 2026.
Specifications
- Type
- Self-cleaning · automatic sifting after every visit
- Cats
- 3–25 lb · up to 4 cats
- Size
- 29.5" tall · 22" × 27" footprint · 24 lb
- Entry
- 15.75" × 15.75"
- Odor
- Sealed waste drawer with carbon filter