Best Self Cleaning Litter Boxes · head-to-head
Litter-Robot 4 vs Leo's Loo Too
A sourced, side-by-side spec comparison. Leo's Loo Too is cheaper at $599.99. Every spec and price links to its source.
Side by side
| Litter-Robot 4 | Leo's Loo Too | |
|---|---|---|
| US price | $699 (MSRP 'as low as $699', base unit (whisker.com)) | $599.99 (Regular price $599.99 on casaleopet.com (a $699.99 'sale' figure is also shown on page)) |
| Brand | Whisker | Casa Leo |
| Released | 2022 | 2021 |
| mechanism | rotating | rotating |
| capacity cats | 4 | 4 |
| waste drawer capacity | 8–13 gal liner (approx. 30–49 L) | 9.5 L |
| app connectivity | true | true |
| weight sensor | true | true |
| litter type | clumping | clumping |
| dimensions in | 22 x 27 x 29.5 in | 24 x 22 x 27.6 in |
| release | 2022 | 2021 |
Sources — Litter-Robot 4: whisker.com (verified 2026-06-19). Leo's Loo Too: casaleopet.com (verified 2026-06-19).