Popur S7 Split Litter System: Born for Cat, Built for Life

Rotating self-cleaning litter boxes keep drawing the same complaints: waste sits in the same sealed drum as clean litter, filters and fragrances only mask smells, and ammonia quietly corrodes electronics. Popur S7, from Seattle, takes a different path with its Split Litter System: like a mini-split AC, the interior convertible tray handles the cat's business while a separate exterior bin collects waste through a fully exposed gravity channel, leaving no hidden corners. Cleaning runs three steps: a 90-degree tilt lets litter wrap and isolate waste, a precision sifter launches clumps into the outer bin, and fresh litter is leveled back. A patented brim guides urine to prevent leaks; the 25-pound fill stretches over 35 days per cat; every module snaps in and out tool-free. Safety combines a 2.5-inch ground clearance with mmWave-radar ActiveShield and a Sentinel mode that halts near skittish cats. Launched in July 2025, it drew 2,891 backers and $1,175,640 — 2,351% funded, with fulfillment already completed.