Arm & Hammer Clump & Seal Platinum Cat Litter vs Dr. Elsey's Ultra Unscented Cat Litter

Arm & Hammer's baking soda formula is genuinely effective at killing odor, but the added fragrance is a real risk — cats are notoriously fragrance-averse, and a litter a cat won't use is worse than no litter at all. Dr. Elsey's zero-fragrance approach is what veterinarians actually recommend, and it still controlled odor well in Good Housekeeping's multi-cat testing. If your cat has ever snubbed a scented product, this decision is already made for you.

Dr. Elsey's medium-grain bentonite clay forms clumps that Good Housekeeping described as making scooping a literal 20-second chore — they don't crumble, smear, or stick to the box bottom. Arm & Hammer clumps are solid and better than most budget litters, but they don't reach that same rock-hard benchmark. In an automatic litter box, this gap matters even more: soft clumps break apart in the rake cycle and create a mess that defeats the whole point.

Arm & Hammer looks cheaper at $18-$22, but that's typically a smaller bag at roughly $1.05 per pound. Dr. Elsey's 40-lb bag runs about 52¢ per pound — half the price — and lasts up to two months with one cat. You're paying more upfront and hauling a heavy bag, but over six months you're spending meaningfully less. The 40-lb bag is genuinely awkward to pour, but that's a one-minute inconvenience every two months.

Multiple reviewers flag tracking as a consistent complaint with Arm & Hammer Clump & Seal — fine particles hitch a ride on paws and end up on your floors. Dr. Elsey's medium-grain granules are heavier and stay in the box better. This isn't a dealbreaker, but if you're already using a litter mat or vacuuming around the box regularly, switching to Dr. Elsey's is likely to reduce that chore noticeably.