PetSafe ScoopFree Crystal Smart.

The Gavler Review.

PetSafe ScoopFree Crystal Smart Review: The Rake That Started It All

The PetSafe ScoopFree Crystal Smart sits at rank seven on our Best Automatic Litter Boxes list with an 8.0. It's the box that put PetSafe's ScoopFree name on the map — a motion-sensing rake that sweeps waste into a covered trap on a disposable crystal tray, rather than a globe that sifts clumping litter. Tom's Guide's hands-on testing over a full month found the crystal-based odor control genuinely effective, with one real mechanical wrinkle: dried waste can jam the rake and needs manual clearing. Buy it for open-air access and crystal odor control if you're willing to subscribe to trays; buy a clumping-litter globe if you'd rather not.

What it actually is

Model PAL00-16807, verified against Amazon /dp/B087C6XZCL, pairs a motion-sensing rake with PetSafe's disposable, pre-filled crystal litter trays. After a cat leaves, the rake sweeps solid waste into a covered trap; the crystals themselves absorb urine and dehydrate feces, which is the mechanical basis for PetSafe's claim of 5-times-better odor control than a traditional clay box — this is tray chemistry, not an ionizer or carbon filter. The official ScoopFree Smart product page promises weeks of hands-free operation between tray changes, tray-change reminders and an activity log through the My PetSafe app, and leak-proof tray construction. It's available in hooded or uncovered configurations; the version Gavler prices here is the Complete Smart kit bundling the litter box with its first tray. The pan sits low and open — no tunnel to refuse, which matters for cats that reject enclosed globes entirely.

In use — the rake does the work, the app does the reporting

Tom's Guide tested the Crystal Smart's odor performance directly and came away convinced: "The PetSafe litter crystals also did a good job at mitigating the smell of the cats' waste... we didn't detect any extra odors, even after him using it for a month." That's a meaningful data point specifically because it's the kind of claim easiest to fake and hardest to verify without sustained real-world use. The My PetSafe app tracking, meanwhile, was framed as a genuine utility rather than a gimmick: "In the PetSafe app, you can monitor how many times the litter box was used, and when your little fur babies went to the bathroom" — a lightweight version of the health-monitoring feature that's become a bigger selling point on pricier automatic boxes.

The mechanical friction point showed up during the same testing period: "Several times, I found that cat excrement had become stuck in the rake, which caused the litter to get pushed back and forth. I then had to scrape off the dried poop from the rake to make sure things worked as they should." That's a hands-on task the "hands-free" framing doesn't fully account for, and it lines up with a broader pattern of owner-reported motor and sensor issues that can interrupt the automatic cleaning cycle — problems that are annoying rather than dangerous, but real enough to budget for.

Strengths

The odor-control claim held up under a full month of real testing, not just a first-week impression — that's the strongest kind of evidence a crystal-litter product can offer. The open, low-pan design is a genuine alternative for cats that have rejected an enclosed globe entirely, without the mess trade-offs of a fully open-top design like the Neakasa M1. The My PetSafe app adds real utility with usage logging and tray-change reminders, and the rake mechanism works independently of the app if you'd rather run it manually.

Trade-offs — who should skip it

The recurring cost is the honest catch: replacement crystal trays are an ongoing subscription-style expense, not a one-time purchase, and multi-cat households will burn through them faster — this is fundamentally a single-cat or light two-cat box. The rake-jamming issue Tom's Guide encountered means "hands-free" comes with an asterisk; budget for the occasional manual clear. And if you've already committed to clumping clay litter, switching to crystals is a real behavioral and financial change, not a minor adjustment.

How it compares

Against the PetSafe ScoopFree SmartSpin (rank four on this list), the decision is litter type: Crystal Smart if you want crystal-based odor control and don't mind trays, SmartSpin if you refuse to give up clumping clay. Against the Litter-Robot 4 (rank one), the Crystal Smart trades a sealed carbon-filtered drawer for a much lower upfront price and an open-air design some cats simply accept more readily.

The Gavler verdict

An 8.0 for a genuinely effective, if narrow, product: real crystal-based odor control, verified over a full month of testing, in a low-pan format that works for cats that won't use an enclosure. The rake's occasional jamming and the ongoing tray cost keep it from climbing higher on this list, but for the single-cat household it's built for, it still does the one job — odor control without scooping — that its name promises.

Common Questions

Is the PetSafe ScoopFree Crystal Smart worth buying?

For a single-cat or light two-cat household willing to subscribe to disposable crystal trays, yes. Tom's Guide's hands-on testing found the crystal litter genuinely controlled odor — 'we didn't detect any extra odors, even after him using it for a month' — though the mechanical rake occasionally jams on dried waste and needs manual clearing.

What litter does the ScoopFree Crystal Smart use?

PetSafe's own disposable crystal trays only — this is not a clumping-litter box like the ScoopFree SmartSpin. The crystals absorb urine and dehydrate solid waste, which is the source of PetSafe's 5x-better-than-clay odor claim, but it also means an ongoing subscription cost for replacement trays rather than a bag of litter from any store.

PetSafe ScoopFree Crystal Smart vs SmartSpin — which should I buy?

Buy the Crystal Smart if you want open-air access, crystal-based odor control, and don't mind subscribing to trays. Buy the SmartSpin (rank four on this list) if you refuse to switch off clumping clay — it uses a rotating sift instead of a rake and works with any litter you already buy, at a higher upfront price but no recurring tray cost.

What's the most common complaint about the Crystal Smart?

Mechanical reliability. Owners report occasional motor failures that halt the automatic cleaning cycle and sensor misreads that disrupt cycle timing. Tom's Guide's own testing found solid waste can get stuck in the rake mechanism, requiring the dried material to be manually scraped off before the box functions properly again.