ScoopFree Crystal Smart specs
| Brand | PetSafe |
|---|---|
| Mechanism | Rake + crystal tray |
| Cat weight (automatic mode) | not published |
| Minimum age | 6 months (maker guidance) |
| Cats per box | Up to 2. Chewy's listing says it's designed for one or two cats. |
| Kittens & small cats | PetSafe's ScoopFree guidance: keep it unplugged and scoop by hand until a kitten is 6 months old. |
| Safety sensors | Infrared. Safety sensors start the rake about 20 minutes after the cat leaves and keep it still while a cat is present (PetSafe, Amazon listing). |
| Entrance during cleaning | Stays open. A rake moves across an open tray; the hood (front-entry version) has no door. |
| Litter | Crystal trays. ScoopFree disposable crystal trays only. |
| Waste drawer | One tray lasts about a month for one cat (PetSafe); a Chewy answer says 10–15 days with two cats. |
| Footprint | 27.6 × 19.1 in, 15.6 in tall |
| App / Wi-Fi | Yes (Wi-Fi (My PetSafe app)) |
| Odor control | Crystal litter absorbs urine and dries out stool; PetSafe claims 5× better odor control. |
| Consumables | Disposable crystal trays: $73.49 for 3 at PetSafe, about $24.50 each. Proprietary: the box needs the maker's refills. |
| Warranty | Not stated on the listing — confirm before buying |
| Price tier | $ Budget (under $300). $269.99 at PetSafe (Nov 12, 2026); snapshots showed $185.58 at PetSmart and $299.99 at Chewy. |
- PetSafe lists 27.6 × 19.1 × 6.2 in uncovered and 27.6 × 19.1 × 15.6 in front-entry.
- PetSafe doesn't state a weight limit for the Smart; its Canadian Crystal Classic FAQ says ScoopFree is designed for cats up to 15 lb.
Running costs: with our defaults, consumables for one cat come to about $24.50 a month including the litter. Trays include the litter, so there's no separate litter cost. See the full breakdown in the cost calculator.
Versions and bundles
Each option is a separate Amazon listing. Prices, where shown, are dated snapshots, not live prices.
| Option | What's different | Price |
|---|---|---|
| Crystal Smart, front-entry (hooded) | Our pick | Check price |
| Crystal Smart, uncovered | Same box without the hood | Check price |
Specs are compiled from manufacturer pages, Amazon listings and independent reviews and can change between production runs. Confirm the weight range and what's in the box on the Amazon page before buying.
We haven’t tested the PetSafe ScoopFree Crystal Smart ourselves, and none of the outlets whose testing we rely on has published results for it. This review draws on PetSafe’s product page and tray pricing, the Amazon listing, and Chewy’s listing and customer answers.
The Crystal Smart is a different kind of self-cleaning box. Instead of a turning globe or drum, a rake sweeps across a disposable tray of crystal litter. An app counts visits and tells you when the tray is due. PetSafe lists it at $269.99, and dated snapshots showed $185.58 at PetSmart and $299.99 at Chewy. Check the price, because it moves around a lot.
Who it’s for (and who should skip it)
It’s for one-cat homes where the cat already likes crystal litter and the owner wants app reminders, no moving enclosure and no litter to pour. It’s also the low-anxiety option for owners worried about a cat getting caught in a rotating box.
Skip it if your cat prefers soft clumping litter. Vets at the AAFP and ISFM note that most cats prefer soft, unscented clumping litter. Crystals aren’t that, and a cat that won’t use the tray makes the whole box pointless. Skip it too if you have two cats and a budget, because tray costs double. The ScoopFree SmartSpin is PetSafe’s clumping-litter alternative with much lower running costs.
How it cleans, and how safe it is
PetSafe and the Amazon listing say safety sensors keep the rake still while a cat is present, and the rake starts about 20 minutes after the cat leaves. Nothing encloses the cat. A rake moves across an open tray, and the hooded front-entry version has no door.
That design removes the biggest risk with self-cleaning boxes, a cat caught in a closing chamber. It doesn’t mean unsupervised kittens are fine. PetSafe says to keep ScoopFree boxes unplugged and scoop by hand until a kitten is 6 months old.
PetSafe doesn’t publish a weight limit for the Smart. Its Canadian FAQ for the Crystal Classic says ScoopFree boxes are designed for cats up to 15 lb, so a large cat may find it tight. Run your cat through the cat safety checker.
Living with it
The trays
Everything revolves around the trays. Each comes pre-filled with crystal litter, absorbs urine and dries out stool. When it’s spent, you throw the whole tray away. There’s no litter to pour and no bags to buy. PetSafe also claims the crystals are low-dust and track less than clay. It also claims five times better odor control, though that’s PetSafe’s figure, not a test result.
The app
The My PetSafe app counts visits as a basic health tracker and reminds you to swap the tray.
Size and versions
The hooded front-entry version measures 27.6 × 19.1 × 15.6 in. There’s also an uncovered version at 6.2 in tall, but its tray walls are low.
Running costs
The trays are the cost to plan for. PetSafe sells a 3-pack for $73.49, about $24.50 per tray, and the trays include the litter, so you don’t buy any separately.
| Cats | Trays per month | Monthly | Yearly | 5 years with the box at $186 |
|---|---|---|---|---|
| One | about 1 | about $24.50 | about $294 | about $1,656 |
| Two | about 2 | about $49 | about $588 | about $3,126 |
Over five years, the trays cost several times what the box does. A clumping-litter box like the SmartSpin comes out far cheaper to run, at about $88 a year for one cat in our model. Compare models side by side in the cost calculator, and read PetSafe ScoopFree vs Litter-Robot for the longer view.
What you’ll need beyond the box
- Trays: ScoopFree crystal tray refills, premium blue, 3-pack (about $73.49 at PetSafe). Stock up during sales.
- Scented alternative: lavender trays, 3-pack. Many cats dislike scented litter, so try unscented first.
- Mat: a Gorilla Grip 35 × 23 in mat for any crystals that get tracked out.
Bottom line
The Crystal Smart is the most reassuring design for a nervous owner. No globe or drum turns, the rake waits about 20 minutes after each visit, and the app tells you when to change the tray. The catch is cost: about $24.50 a tray, roughly one per cat per month, for as long as you own it. It makes sense for one cat under about 15 lb that already likes crystal litter. Otherwise, a clumping-litter box will be cheaper to live with.
If you don’t need the app, the ScoopFree Classic uses the same trays for about $100. Not sure which way to go? The litter box matcher can help, or check the Crystal Smart price.
Litter and supplies for the ScoopFree Crystal Smart
Litter, liners, odor refills and mats sold on Amazon that fit this box. Check the listing confirms your exact model before you buy.
- Crystal traysPetSafe ScoopFree crystal tray refills, premium blue, 3-packOfficial PetSafe
The ScoopFree Crystal boxes only work with these disposable trays; each lasts about a month for one cat (PetSafe). Not for the SmartSpin, which takes ordinary clumping litter.
- Crystal traysPetSafe ScoopFree crystal tray refills, lavender, 3-packOfficial PetSafe
Same leak-protected tray with a lavender-scented crystal; PetSafe says up to 30 days for one cat. Scented litter puts some cats off; most cats prefer unscented (AAFP).
- Litter matGorilla Grip cat litter mat, 35 × 23 inUniversal fit
Big enough to catch scatter from most globe boxes; textured backing stays put.
- Litter matGorilla Grip cat litter mat, extra large, 40 × 28 inUniversal fit
The size we'd put under open-top boxes, which both WIRED and Tom's Guide found fling more litter.
- Litter matiPrimio jumbo cat litter trapper mat, 32 × 30 inUniversal fit
Honeycomb two-layer mat with a waterproof layer, for cats that kick litter far.
Compatibility checked November 2026. More in our litter and supplies guide.
Featured in our guides
- The Best Self-Cleaning Litter Box for Senior Cats in 2026
- The Best Open-Top Self-Cleaning Litter Boxes of 2026
- PetSafe ScoopFree vs Litter-Robot: Crystal Trays or a Rotating Globe?
