Purobot Crystal Duo vs S7
One requires the maker's own litter, the other takes standard litter
Petkit Purobot Crystal Duo
Buy now$199.99
Currently listed price on petkit.com for this open-top disposable-tray model.
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Where the published data differs
Every line below is computed from the two manufacturers’ own figures. Attributes neither brand publishes are omitted.
- Purobot Crystal Duo lists at $199.99, $449.96 below S7 at $649.95.
- Proprietary litter required: published for Purobot Crystal Duo, not for S7.
- Warranty: Purobot Crystal Duo 24 months versus S7 12 months (100% more). Published data favours Purobot Crystal Duo.
- Entry height: S7 10.6 in versus Purobot Crystal Duo 7.08 in (50% more). Published data favours Purobot Crystal Duo.
- Subscription required: published for Purobot Crystal Duo, not for S7.
- Litter type required: Purobot Crystal Duo — Petkit Crystal litter disposable tray; S7 — Clumping litter; default 6 mm sifter for fine clay.
- Cleaning cycle trigger: Purobot Crystal Duo — Automatic after the cat exits, with app scheduling; S7 — App/schedule modes with pet sensing; cycle about 2.5 minutes.
- Odor control method: Purobot Crystal Duo — Disposable absorbent crystal litter tray; S7 — External sealed waste bin with L-shaped gasket and 360 double-bag wrap.
Full specification comparison
| Attribute | Purobot Crystal Duo | S7 |
|---|---|---|
| Multi-cat suitable | Yes | Yes |
| Minimum cat weight | 3.3 lbs | Not published |
| Maximum cat weight | Not published by either | Not published by either |
| Waste drawer capacity | Not published | 11 L |
| Litter type required | Petkit Crystal litter disposable tray | Clumping litter; default 6 mm sifter for fine clay |
| Proprietary litter required | Yes | No |
| Proprietary waste bags required | No | No |
| Subscription required | Yes | No |
| Cleaning cycle trigger | Automatic after the cat exits, with app scheduling | App/schedule modes with pet sensing; cycle about 2.5 minutes |
| Adjustable cycle delay | Yes | Not published |
| App control | Yes | Yes |
| Weight sensing | Yes | Yes |
| Health monitoring | Yes | Yes |
| Odor control method | Disposable absorbent crystal litter tray | External sealed waste bin with L-shaped gasket and 360 double-bag wrap |
| Entry height | 7.08 in | 10.6 in |
| Interior dimensions | Not published by either | Not published by either |
| Footprint | 32.2 x 19.96 x 13.14 in | 29.1 x 20.5 x 15.8 in (bin included) |
| Operating noise | Not published | 40 dB |
| Power source | AC adapter, 12V/2A | DC 12V 3A / 36W |
| Battery backup | No | Not published |
| Warranty | 24 months | 12 months |