Your needs, this model
Does it fit your priorities?
Does the Crystal Smart require crystal rather than clumping litter?
Yes. PetSafe says the Smart is designed for its ScoopFree crystal litter and authentic trays.
Explore this need in the finder →Does it provide app access and remote usage alerts?
Yes. PetSafe describes My PetSafe app activity tracking, remote rake activation and custom tray alerts.
Explore this need in the finder →Can I demand a manufacturer-stated maximum cat count for Crystal Smart?
The product page says single- or multi-cat households but supplies no numeric capacity, so an exact-number requirement is not confirmed.
Explore this need in the finder →The only PetSafe crystal rake here with app reporting
The ScoopFree Crystal Smart keeps the crystal-tray rake mechanism but adds a My PetSafe app, LCD, health counter and custom notifications. Sensors recognize when a cat leaves, then the rake moves solid waste into the covered trap after a countdown; crystals absorb liquid. The app adds remote viewing and settings to a mechanism that still depends on physical crystal trays. It does not turn the machine into a clumping-litter system or make the tray replacement schedule automatic.
The product family includes an uncovered model, PAL00-16807, and a front-entry covered model, PAL00-16808; the product page's variant links and quick-start guide support those two exact configurations. PetSafe's support page also lists 300-3559, but does not map that number to a different shape or package. The review therefore describes the two linked configurations and retains the extra support identifier as a reference that needs exact offer-level confirmation. Published dimensions are 27.6 x 19.1 x 6.2 inches uncovered and 27.6 x 19.1 x 15.6 inches front-entry. The page does not label the horizontal axes, so measure both room directions rather than assuming those are width and depth.
What the app changes—and what it cannot tell you
PetSafe says the app tracks use in real time, can remotely activate the rake and can send customized tray-change reminders. The local counter increases each time the rake cycles. These are ways to notice patterns and manage a routine, not a diagnosis or identification of which cat used the box. In a multi-cat home, the activity record should not be treated as proof of which animal visited. The screen and app also do not remove the need to look at the crystals, inspect the waste trap or clean the sensors.
The setup instructions require a smartphone, an internet-connected router and a Wi-Fi network; PetSafe's current setup article specifies 2.4 GHz. The quick-start guide appears to print “2.5 GHz” in its preparatory checklist, so check the current in-app setup requirements or PetSafe support if your router's band configuration is strict. If an app is not useful or reliable in your home, the Crystal Plus has a tray-change light without that connected layer, while the Pro Legacy provides a local usage counter.
Crystal litter sets the operating plan
The Smart is designed for ScoopFree crystal litter only. The crystals absorb liquid and dehydrate solids; the rake carries the solids into the tray's waste trap. The quick-start guide gives a 20-minute default countdown after a cat exits and says the delay is adjustable in the app; returning during the countdown pauses and resets it. The same guide estimates a tray at 20–30 days for one cat, 10–15 for two and 7–10 for three or more. Use that as a planning range, not a guarantee. Tray life varies with humidity and cat habits, and PetSafe advises a dry, airy location. You need an accessible outlet, and you'll need to replace the tray and cover it with the supplied lid for disposal.
The covered version can help contain litter, but if your cat is new to a hood, PetSafe suggests leaving the privacy cover off until the cat is comfortable. The open version avoids that adjustment. The current product page says single- or multi-cat households but gives no numeric capacity or cat-weight range; if a certain cat count or weight must be confirmed, the finder correctly treats those values as unknown rather than assuming the Smart's app supplies them.
Important care boundary for kittens
PetSafe's quick-start guide says a kitten younger than six months should use manual scooping with the box unplugged. That detail matters even if the app can send alerts: a connected history is not a substitute for an adult supervising a young cat. The manual also recommends transitioning gradually, keeping the old tray nearby, using a few handfuls of familiar litter where helpful and leaving the new unit unplugged while the cat learns its way around. Once the cat is comfortable, the machine can begin its timed cycle. Keep the sensors clear, use mild cleaning methods and dry the parts completely before reassembling.
Is Smart worth the extra setup?
Choose the Smart when remote use logs, change alerts or an adjustable delay answer a genuine household need and your network can support the app setup. Choose the Classic if you want the simpler crystal-rake arrangement and can accept that its current product record does not establish app or counter features. Choose the Crystal Plus if a visible tray-life light is enough. Choose the current Crystal Pro if the hood and local counter matter more than app access. If keeping clumping litter is essential, look at a mechanism built for it, such as the Litter-Robot 5, and compare its large enclosed footprint with your room and cat.
Smart's trade is therefore quite specific: more remote information and controls in exchange for network setup, app dependence, a crystal-only tray system and data that should be read as activity context rather than health advice. Its best fit is a household where those app features are used, not simply appreciated in a feature list. Confirm the uncovered or PAL00-16808 front-entry package, the exact tray supply and your network before purchase.
Key details at a glance
| Cleaning mechanism | Automatic rake over a crystal tray |
|---|---|
| Manufacturer's single-cat drawer interval claim | 30 days |
| Waste-type recognition | No |
| Built-in dual-camera system | No |
| Color LCD screen | Yes |
| App reporting / remote controls | Yes |
| Litter and care limits | The Smart is designed for PetSafe ScoopFree crystal litter and genuine trays; its crystals absorb liquid and the rake transfers solid waste. Quick-start tray-life guidance varies by cat count and humidity. |
| Exact-model and package notes | Product links map PAL00-16807 to uncovered and PAL00-16808 to front-entry. The support page also lists 300-3559 without describing a distinct package or configuration. |
| Local visit counter | Yes |
| Tray-life indicator | Yes |
| Rake delay after cat exit | 20 min |
| Tray replacement guidance | Quick-start guide estimates 20-30 days for one cat, 10-15 for two, and 7-10 for three or more; real tray life varies. |
| Published size note | Uncovered: 27.6 x 19.1 x 6.2 inches; front-entry: 27.6 x 19.1 x 15.6 inches. Manufacturer does not label each axis as width/depth/height. |
| App setup note | PetSafe's setup article says the router must use 2.4 GHz. The quick-start guide's preparation list prints 2.5 GHz, a conflicting figure; verify current app setup requirements with PetSafe. |
| Wi-Fi band | 2.4 GHz stated in setup article; another instruction conflicts |
Use the exact model’s instructions for operating limits, supplied equipment and version differences.
Sources for this assessment
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