Last updated November 8, 2026. How these were picked: from product details and prices published by retailers. We don't claim hands-on testing.
PetSafe ScoopFree OpenSky Litter Box
OpenSky: clumping litter and app control
Best for: Cat owners who want to keep using clumping litter and can spend more
- App-enabled and self-cleaning, and it works with clumping litter.
- The waste drawer holds up to two weeks of clumps for one cat.
- Measures 20 by 18.8 by 24 inches, a smaller footprint than the Crystal Smart.
Check before buying: At $549.99 it costs $280 more, and it is 24 inches tall, so measure your space.
$549.99 price when listed
Check price at PetSafe →PetSafe ScoopFree Crystal Smart Litter Box
Crystal Smart: lower price with app monitoring
Best for: Budget-minded shoppers who are fine with crystal litter
- Self-cleaning with app monitoring, at $269.99.
- Uses crystal litter instead of clumping litter.
- The uncovered version is only 6.2 inches tall, so it suits low spaces.
Check before buying: The uncovered version is 27.6 inches long, and no waste storage time is listed.
$269.99 price when listed
Check price at PetSafe →Bottom line
The OpenSky suits shoppers who want clumping litter and a stated two-week drawer capacity for one cat. The Crystal Smart suits those who want app monitoring at a lower price and can work with crystal litter and a longer, lower box.
Questions
What kind of litter does each box use?
The OpenSky uses clumping litter. The Crystal Smart uses crystal litter.
How long does the OpenSky waste drawer last?
The listing says it stores up to two weeks of clumps for one cat. Multi-cat homes should not assume the same interval.
How big are these litter boxes?
The OpenSky measures 20 by 18.8 by 24 inches. The uncovered Crystal Smart measures 27.6 by 19.1 by 6.2 inches.
Do both boxes have app features?
Yes. The OpenSky is listed as app-enabled and the Crystal Smart as having app monitoring. The listings do not say what each app does.
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