Litter-Robot 4 vs Pura X compared on specs, price, and real reviews — we help you pick the right one for your needs.
| Litter-Robot 4 | Pura X | |
|---|---|---|
| 2.3 kg | Min. cat weight | 1.5 kg |
| Clumping | Litter type | Clumping |
| 6 L | Waste capacity | 7 L |
| Yes | App control | Yes |
| Yes | Health monitoring | Yes |
| Yes | Safety sensor | Yes |
| Yes | Odor control | Yes |
| Yes | Multi-cat | Yes |
Two and a half times the price, yet app control, health logging, a safety sensor and multi-cat support appear on both, so the spec sheet shows no gap. What does differ is the minimum cat weight: 2.3 kg for the Litter-Robot 4 against 1.5 kg for the Pura X, so kittens and small cats may not register on the LR4 at all. The waste drawer is actually larger on the Pura X — 7 L against 6 L. On specifications alone the Pura X wins; the LR4 earns its price on things the table does not show.