MW-SC09 Plus vs Purobot Crystal Duo
One requires the maker's own litter, the other takes standard litter
Meowant MW-SC09 Plus
Buy now$649.99
Currently listed price on meowant.com.
List price · checked Oct 27, 2026▼ −$10 · Oct 16, 2026Buy now
Petkit Purobot Crystal Duo
Buy now$199.99
Currently listed price on petkit.com for this open-top disposable-tray model.
List price · checked Oct 27, 2026▲ +$40 · Oct 8, 2026Buy now
Verdict
Purobot Crystal Duo has the lower list price ($199.99 vs $649.99). On the attributes both makers publish with a clear better direction, the published figures favour MW-SC09 Plus on 2 and Purobot Crystal Duo on 2. This summary uses manufacturer-published data only; we have not tested either model.
Key differences
| Attribute | MW-SC09 Plus | Purobot Crystal Duo |
|---|---|---|
| List price | $649.99 | $199.99 |
| Proprietary litter required | No | Yes |
| Subscription required | No | Yes |
| Entry height | 8.27 in | 7.08 in |
| Warranty | 12 months | 24 months |
| Litter type required | Clumping litter, particle length under 15 mm | Petkit Crystal litter disposable tray |
| Cleaning cycle trigger | Automatic after the cat leaves, plus manual and timer modes | Automatic after the cat exits, with app scheduling |
| Odor control method | Odour-proof cover plus ammonia-breaking deodorising gel | Disposable absorbent crystal litter tray |
| Footprint | 20 x 21.5 x 20 in | 32.2 x 19.96 x 13.14 in |
Who should buy which
- Choose the MW-SC09 Plus if you prioritise Proprietary litter required and Subscription required, based on published figures.
- Choose the Purobot Crystal Duo if you prioritise a lower list price, Entry height and Warranty, based on published figures.
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, $450 below MW-SC09 Plus at $649.99.
- Proprietary litter required: published for Purobot Crystal Duo, not for MW-SC09 Plus.
- Warranty: Purobot Crystal Duo 24 months versus MW-SC09 Plus 12 months (100% more). Published data favours Purobot Crystal Duo.
- Entry height: MW-SC09 Plus 8.27 in versus Purobot Crystal Duo 7.08 in (17% more). Published data favours Purobot Crystal Duo.
- Subscription required: published for Purobot Crystal Duo, not for MW-SC09 Plus.
- Litter type required: MW-SC09 Plus — Clumping litter, particle length under 15 mm; Purobot Crystal Duo — Petkit Crystal litter disposable tray.
- Cleaning cycle trigger: MW-SC09 Plus — Automatic after the cat leaves, plus manual and timer modes; Purobot Crystal Duo — Automatic after the cat exits, with app scheduling.
- Odor control method: MW-SC09 Plus — Odour-proof cover plus ammonia-breaking deodorising gel; Purobot Crystal Duo — Disposable absorbent crystal litter tray.
Full specification comparison
| Attribute | MW-SC09 Plus | Purobot Crystal Duo |
|---|---|---|
| Multi-cat suitable | Yes | Yes |
| Minimum cat weight | 3.3 lbs | 3.3 lbs |
| Maximum cat weight | 30 lbs | Not published |
| Waste drawer capacity | 6.7 L | Not published |
| Litter type required | Clumping litter, particle length under 15 mm | Petkit Crystal litter disposable tray |
| Proprietary litter required | No | Yes |
| Proprietary waste bags required | No | No |
| Subscription required | No | Yes |
| Cleaning cycle trigger | Automatic after the cat leaves, plus manual and timer modes | Automatic after the cat exits, with app scheduling |
| Adjustable cycle delay | Yes | Yes |
| App control | Yes | Yes |
| Weight sensing | Yes | Yes |
| Health monitoring | Yes | Yes |
| Odor control method | Odour-proof cover plus ammonia-breaking deodorising gel | Disposable absorbent crystal litter tray |
| Entry height | 8.27 in | 7.08 in |
| Interior dimensions | 106 L interior space | Not published |
| Footprint | 20 x 21.5 x 20 in | 32.2 x 19.96 x 13.14 in |
| Operating noise | 36 dB | Not published |
| Power source | Not published | AC adapter, 12V/2A |
| Battery backup | Not published | No |
| Warranty | 12 months | 24 months |