OfficialLitter-Robot 4
“We recommend a high-quality, standard-weight, clay-based clumping litter”Official source
Tradeoff guide
Low tracking vs screen fit in Litter-Robot 4
A product can stay off the floor yet lose clean litter through the screen; tracking and machine compatibility need separate observations.
Decision rail
Four checks, in order
Passing one check does not override a failure or unknown in the next. This is a compatibility decision, not a popularity ranking.
- 01Floor
Map where particles travel
Separate the step, mat edge, nearby floor, and farther rooms instead of assigning one tracking label.
- 02Drawer
Inspect clean-litter loss
Intact unused particles in the drawer indicate a screening issue, not paw tracking.
- 03Context
Record coat, mat, and fill
Coat length, exit behavior, mat setup, particle shape, and bed depth belong with the observation.
- 04Decision
Keep both tradeoffs visible
A clean floor cannot compensate for repeated waste, and normal sifting cannot guarantee low tracking.
Published boundary
What Litter-Robot actually says
These statements describe classes and limits. They are not PawExact tests and do not automatically approve every product using the same marketing term.
OfficialLitter-Robot 4
“Some silica gel litter beads and crystals can also be used with Litter-Robot, as long as they pass through the screen. However, translucent or white-colored litter (most often seen in crystal litter) may impact the litter level and Drawer Full Indicator (DFI) accuracy in Litter-Robot 4 and are therefore not recommended.”Official source
OfficialLitter-Robot 4
“Alternative, plant-based litters typically do not work with Litter-Robot as these may not be filtered properly through the sifting system.”Official source
Exact-product records
Products that show why the class label is not enough
The selected records preserve tracking and screening as separate fields. They do not support a universal low-tracking winner.
Single report1 public report
Really Great Cat Litter
Tuft + Paw
- Material
- Tofu
- Clumping
- Clumping
- Weight
- Lightweight
One long-haired-cat report says no tracking but preserves a fill-dependent clean-litter-loss warning.
Compatible with conditions
Read exact recordSingle report1 public report
Low Tracking & Dust Control
World's Best Cat Litter
- Material
- Corn
- Clumping
- Clumping
- Weight
- Lightweight
The accepted report concerns screening waste, not measured floor tracking.
Not recommended
Read exact recordSingle report2 public reports
BoxiePro Deep Clean Probiotic
Boxiecat
- Material
- Clay
- Clumping
- Clumping
- Weight
- Standard
A separate long-haired-cat report describes high tracking even with an LR4 mat.
Not recommended
Read exact recordSingle report1 public report
Extra Strength Unscented
Ever Clean
- Material
- Clay
- Clumping
- Clumping
- Weight
- Standard
Likely compatible
Read exact recordReport applicability
Keep each observation with its original conditions
Read the same owner's floor observation and drawer warning as two outcomes from one LR4 household, not as independent product trials.
Single reportJul 13, 2023
Really Great Cat Litter
No tracking was reported, but long clean particles could reach waste above the owner's low-fill condition.
- Original source
- Original public text was readable when reviewed
- Use mode
- Standalone versus mixture not stated
- Accessory
- Unknown
- Use duration
- Unknown; qualitative wording is not converted to days
Single reportJul 13, 2023
BoxiePro Deep Clean Probiotic
The same owner reported heavy floor tracking with a different exact formula and an LR4 mat.
- Original source
- Original public text was readable when reviewed
- Use mode
- Standalone versus mixture not stated
- Accessory
- Litter-Robot mat present
- Use duration
- Unknown; qualitative wording is not converted to days
Stop transfer: A changed floor trail cannot certify clean-particle return. Coat, mat, fill, and the observation window were not held to a measured protocol.
Before a larger purchase
A small, observable first-use check
This is not a controlled test protocol. It is a way to notice an obvious mismatch before treating one successful cycle as proof.
- Check 1Photograph the step, mat edge, and floor after a defined cycle interval, keeping floor scatter separate from drawer contents.
- Check 2Inspect the drawer for intact unused particles versus damp broken clumps after those same cycles.
- Check 3Record exact SKU, particle form, coat context, mat, physical fill relative to MAX, and cleaning routine.
- Check 4Avoid changing mat, fill, and litter together when trying to identify which observation changed.
- Check 5If floor scatter improves but dry clean grains collect in the drawer, record a tradeoff rather than calling the formula a compatibility improvement.
Known limits
What the current evidence cannot prove
- PawExact has not measured tracked mass, distance, or clean-litter waste.
- Reports do not standardize cats, coat, paws, mats, static, humidity, fill, or floor plan.
- Current observations cannot establish a product-wide tracking or screening rate.
Evidence readiness
What this guide can support today
This checkpoint separates a useful answer from claims the current official rules and exact records still cannot support. It is an editorial evidence review, not a PawExact test.
- Question scope
- Photograph floor scatter and the waste drawer as separate locations under one LR4 fill level. A low-tracking observation answers where grains went after exit, not whether unused grains returned through the screen.
- Direct official boundary
- Today's LR4 FAQ conditions crystals on screen pass-through and warns that plant litter may filter poorly; the current no-cycle page separately directs removal of overfill. Neither source makes a low-tracking claim or supplies a universal safe fill percentage for long tofu grains.
- Exact-product evidence
- One accepted Tuft + Paw report from a long-haired-cat home describes no tracking and a fill-dependent clean-litter-loss warning. The same owner described high tracking with BoxiePro Deep Clean; this is one household contrast, not two independent trials.
- Remaining gap
- The one same-home contrast did not weigh floor scatter and drawer loss under matched fill and mat conditions. The owner-reported roughly twenty-percent point is not the manufacturer's threshold, and the broader tracking issue page already covers part of this intent.
Intent boundary
Keep the next question narrower
Use this page to keep floor tracking and screen loss as two observations. A particle can stay near the box yet fail the screen, or travel farther while still separating correctly; neither result proves the other.