PetSafe ScoopFree OpenSky vs Neakasa M1 Plus
The Neakasa M1 Plus detects lighter cats: 2.2 lb against 3 lb for the PetSafe ScoopFree OpenSky, which matters most in a home with a kitten on the way. With two cats the Neakasa M1 Plus's 11.23-litre drawer lasts about 8 days to the PetSafe ScoopFree OpenSky's 6. Every other published figure for both is in the table, with the rows where they differ tinted.
PetSafe
PetSafe ScoopFree OpenSky
~$550
PetSafe's open-top design has no hood and no globe, so the cat never walks into an enclosure at all.
Best for: Large or hood-shy cats in a home that uses clay clumping litter
- 1 cat
- ~12
- days
- 2 cats
- ~6
- days
- 3 cats
- ~4
- days
Neakasa
Neakasa M1 Plus
~$380
Neakasa's current M1 keeps the open top that made the original popular with owners of big cats, and rates it for cats from 2.2 to about 33 lb.
Best for: Maine Coons and other large cats, or cats that avoid covered boxes
- 1 cat
- ~16
- days
- 2 cats
- ~8
- days
- 3 cats
- ~5
- days
| Specification | PetSafe ScoopFree OpenSky | Neakasa M1 Plus |
|---|---|---|
| Approx. price | ~$550 | ~$380 |
| Type | Open-top | Open-top |
| Kitten gate | Automate from ~3 lb / ~6 months | Automate from ~2.2 lb / ~3 months |
| Min. detection weight | 3 lb | 2.2 lb |
| Maker's minimum age | 6 months | not published |
| Max. cat weight | 33 lb | 33 lb |
| Big-cat fit | Rated for large breeds (to 33 lb) | Rated for large breeds (to 33 lb) |
| Entry step | not published | 13.86 in off the floor |
| Footprint | 20 × 18.8 in × 24 in tall | 22.83 × 19.69 in × 26.83 in tall |
| Drawer volume | 8.5 L | 11.23 L |
| Days between emptying | ~12 / 6 / 4 days for 1 / 2 / 3 cats | ~16 / 8 / 5 days for 1 / 2 / 3 cats |
| Maker's drawer claim | Up to 14 days, one cat | Up to 14 days, one cat |
| Litter system | Clumping litter | Clumping litter |
| Litters listed | clumping clay | clumping clay |
| Litters to avoid | tofu, clumping wood/pine | non-clumping, paper, pellets |
| Weight sensor | Yes | Yes |
| Anti-pinch protection | Not stated by the maker | Stated by the maker |
| Infrared / radar | Yes | Yes |
| Camera | No | No |
| Noise | not published | 50 dB (maker's rating) |
| Wi-Fi app | Yes | Yes |
| Running cost | No required consumable | No required consumable |
| Bags / liners | PetSafe OpenSky waste bin liners | Neakasa pull-and-wrap bags (from $19.99 for 2 rolls) |
| Warranty | 1 year | 2 years |
| First listed | 2025 | 2024 |
PetSafe ScoopFree OpenSky: what it gives up
- At about $550, the priciest PetSafe
- Pine and tofu pellets may not work, per the user guide
- The two-week figure assumes one cat; PetSafe says 1–2 emptyings a week for two
- Open sides give scattered litter nowhere to land but the floor
Neakasa M1 Plus: what it gives up
- Rated at up to 50 dB, the loudest published figure among the boxes that give one
- Clay and mineral litters only; wood pellets and paper jam it
- Neakasa's own sealing bags cost extra
- Open design lets litter scatter over the rim
Full pages: PetSafe ScoopFree OpenSky · Neakasa M1 Plus