Scented Clay
Arm & Hammer Clump & Seal
A budget-friendly clay litter with aggressive odor control and easy store availability, offset by strong fragrance and more tracking.
Overall score
8.7/10
Cost per day
$0.43
Reviewed Mar 7, 2026
Head-to-head comparison
Arm & Hammer Clump & Seal vs PrettyLitter: Which Should You Buy?
Clump & Seal covers smell with fragrance and clumps for far less money. PrettyLitter is unscented crystals that keep an eye on your cat's urine instead. One is a budget decision, the other a health one.
ReviewCatLitter editorial teamUpdated Mar 7, 2026
This comparison page is maintained by the ReviewCatLitter editorial team and grounded in the same scoring framework used across the published review catalog.
Silica Crystal
PrettyLitter
A crystal litter built around health monitoring and light weight, with a strong subscription convenience angle and weaker clumping value.
Overall score
8.8/10
Cost per day
$0.80
Reviewed Mar 4, 2026
Overall winner
Arm & Hammer Clump & Seal
Arm & Hammer Clump & Seal is the strongest all-around pick in this comparison for budget shoppers prioritizing odor control.
Lowest daily cost
Arm & Hammer Clump & Seal at $0.43/day
Budget is often the deciding factor in this tier.
Best odor control
Arm & Hammer Clump & Seal at 7-day heavy fragrance
Odor control often decides whether a litter feels tolerable long term.
Tracks less outside the box
PrettyLitter at Minimal
Tracking can be more important than overall score in small spaces.
What we actually measured
Every figure below is a reading from our own test runs, not a rating. Where a run never took a reading it says so.
| Reading | Arm & Hammer Clump & Seal | PrettyLitter | Gap |
|---|---|---|---|
| Dust weighed per pourParticulates caught in the air while the bag goes into the box. Lower is better. | 0.45 mg | not measured | only one side measured |
| Ammonia after one dayParts per million above the tray, 24 hours in. Lower is better. | 1 ppm | not measured | only one side measured |
| Ammonia after three daysParts per million above the tray, 72 hours in. Lower is better. | 3 ppm | not measured | only one side measured |
| Bag priceWhat the tested bag cost. Bag sizes differ, so read it next to cost per pound. | $16.99 | $24.00 | $7.01 |
| Cost per poundBag price divided by what is in the bag. Lower is better. | $0.45better | $3.00 | $2.55 |
| Cost per dayWhat the box costs to keep running each day. Lower is better. | $0.43better | $0.80 | $0.37 |
| Cost across a yearThat daily cost carried over a full year of use. Lower is better. | $157better | $292 | $135 |
Neither run recorded clumps that survived the drop test and granules outside the box, so those rows are left out rather than filled in from a similar bag. The full test data shows every reading we have.
Why Arm & Hammer Clump & Seal wins this matchup
Primary tradeoff: Arm & Hammer Clump & Seal's weakest area here is dust control.
Strongest odor control in this set with 7-day heavy fragrance.
It is also the cheapest daily option at $0.43 per day.
| Product | ||
|---|---|---|
| Overall Score | 8.7 | 8.8 |
| Pricing | ||
| Price | $16.99 | $24.00 |
| Weight | 38 lbs | 8 lbs |
| Cost / Day | $0.43 | $0.80 |
| Performance | ||
| Dust Control | 6 0.45mg per pour | 8.6 Very low crystal dust |
| Clumping | 8.1 Good | 4.2 Non-clumping |
| Odor Control | 9.1 7-day heavy fragrance | 8.9 Very good urine odor control |
| Tracking Outside the Box | 6 Tracks heavily | 9.1 Minimal |
| Value for Cost | 9 $0.43/day · $16.99 | 6.8 $0.80/day · $24.00 |
| Features | ||
| Type | Scented Clumping Clay | Silica Crystal |
| Flushable | ||
| Scented | Yes | No |
| Our Verdict | ||
| Best For | Budget shoppers prioritizing odor control | Health monitoring and lightweight convenience |
| Read ReviewCheck Price | Read ReviewCheck Price | |
Best fit
Arm & Hammer Clump & Seal
Arm & Hammer Clump & Seal makes the most sense for budget shoppers prioritizing odor control.
Worth it if
You want a budget-friendly clay litter with aggressive odor control and easy store availability, offset by strong fragrance and more tracking.
Skip it if
You need a formula that solves budget shoppers prioritizing odor control better.
Best fit
PrettyLitter
PrettyLitter makes the most sense for health monitoring and lightweight convenience.
Worth it if
You care more about health signals and easy lifting than classic clumping performance.
Skip it if
You want traditional scoopable clumps or the best value per pound.
If neither option is quite right
The closest litters we have tested to this matchup, on score and on price.
Fast-Clumping Clay
Arm & Hammer HardBall
Weighed 0.48mg per pour and runs at $0.47 a day.
Best for fast hard clumping on a mid-range budget
Budget Clumping Clay
Arm & Hammer Super Scoop
Weighed 0.52mg per pour and runs at $0.35 a day.
Best for lowest-cost clumping litter
Scented Clumping Clay
Fresh Step Scented
Weighed 0.42mg per pour and runs at $0.40 a day.
Best for convenient store-bought clay
Read the full reviews
Use this page to choose a winner quickly, then open the full product reviews if you want the long-form test notes.
Keep comparing nearby options
Related matchups that share one of the same products and answer the next likely decision.
Related matchup
Dr. Elsey's Ultra vs Arm & Hammer Clump & Seal
Choose Ultra if dust or fragrance bother anyone in the house. Choose Clump & Seal if the price of the bag decides it.
Winner: Dr. Elsey's Ultra
Related matchup
Dr. Elsey's Ultra vs PrettyLitter
Ultra is scoopable clay. PrettyLitter is crystals that change color to flag a health problem.
Winner: Dr. Elsey's Ultra
Related matchup
Arm & Hammer Clump & Seal vs Purina Tidy Cats
Clump & Seal is worth the step up from Tidy Cats if smell is the reason you are shopping. Tidy Cats is cheaper by the bag and easier to find.
Winner: Arm & Hammer Clump & Seal
Related matchup
Fresh Step Scented vs Arm & Hammer Clump & Seal
Two perfumed supermarket clays. Clump & Seal holds smell down longer and clumps harder. Fresh Step is the cheaper bag and pours a little less dust.
Winner: Arm & Hammer Clump & Seal
Related matchup
Arm & Hammer Clump & Seal vs Dr. Elsey's Cat Attract
Cat Attract is what you try when your cat is missing the box. Clump & Seal is what you buy when the bag price decides it.
Winner: Dr. Elsey's Cat Attract
Related matchup
Arm & Hammer Clump & Seal vs Boxiecat Premium
Boxiecat is the quiet, unscented, easy-scoop bag. Clump & Seal is the cheap, heavily perfumed one.
Winner: Boxiecat Premium
Quick Answers
Which is better: Arm & Hammer Clump & Seal or PrettyLitter?
Arm & Hammer Clump & Seal comes out ahead on the balance of dust, clumping, odor control, tracking and daily cost. PrettyLitter is still the one to buy for health monitoring and lightweight convenience.
Which is cheaper per day: Arm & Hammer Clump & Seal or PrettyLitter?
Arm & Hammer Clump & Seal runs at $0.43 a day against $0.80 for PrettyLitter.
Which controls smell better: Arm & Hammer Clump & Seal or PrettyLitter?
Arm & Hammer Clump & Seal scored higher: 7-day heavy fragrance, against very good urine odor control for PrettyLitter.
Which tracks less outside the litter box: Arm & Hammer Clump & Seal or PrettyLitter?
PrettyLitter keeps more litter in the box: minimal, against tracks heavily for Arm & Hammer Clump & Seal.