The Ease S1 Smart Litter Box Is the First Auto-Litter Box You Can Actually Wash in Seconds

Oneisall’s CES 2026 debut features modular steel construction and triple-sensor safety for multi-cat homes

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Al Landes Avatar

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Ease S1

Key Takeaways

Key Takeaways

  • Oneisall Ease S1 features fully modular stainless-steel components for complete residue-free cleaning.
  • Twelve sensors create protective bubble, stopping cleaning cycle in 0.3 seconds when cats approach.
  • Open rectangular design with 30% larger entry reduces cat claustrophobia versus dome competitors.

Daily litter scooping feels like Groundhog Day, except with more ammonia fumes and the constant dread of forgotten waste. Multi-cat households know this dance intimately—the endless cycle of maintenance that never quite stays ahead of the mess. Enter the Oneisall Ease S1, unveiled at CES 2026, which tackles the core issues that make automatic litter boxes fail: residue buildup, safety concerns, and cat anxiety around enclosed spaces.

Modular Design Finally Makes Sense

Stainless-steel components rinse completely clean in five seconds.

The Ease S1’s breakthrough lies in its fully modular construction. Every component that touches waste—the stainless-steel sifting screen, the 360° silicone liner, even the base—detaches completely for thorough cleaning. Oneisall calls it “5-second rinse, zero dead-angle residue” technology, addressing the biggest complaint about existing units: those unreachable corners where waste accumulates. You can literally hose down the entire system without worrying about electronics or hidden crevices that trap odors and bacteria.

Safety System Built for Chaos

Triple sensors stop the cleaning cycle in 0.3 seconds when cats approach.

Nine motion sensors plus three radar sensors monitor the box continuously, creating what amounts to a protective bubble around your cats. The system halts operation the instant it detects movement, solving the nightmare scenario of automatic cleaning mechanisms trapping or injuring curious pets. For multi-cat households where territorial disputes happen near the box, this redundant safety system prevents accidents that could permanently turn your cats against the device.

Open Design Reduces Cat Anxiety

Thirty percent larger entry eliminates the enclosed-box claustrophobia.

Unlike dome-shaped competitors that feel like space pods, the Ease S1 uses an open rectangular design that mimics traditional litter boxes. The entrance is significantly larger than standard models, reducing the trapped feeling that makes some cats avoid automatic systems entirely. The dual-layer motor operates below 45 decibels—quieter than most refrigerators—so even skittish cats won’t bolt at the first mechanical sound.

Pre-Order Timing and Real Value

One-dollar deposit secures seventy-dollar discount for April 2026 delivery.

Pre-orders are live now through Oneisall’s website, with full units shipping after the official April launch. The $1 reservation fee unlocks a $70 discount code, though final pricing remains unclear. For households spending 10-15 minutes daily on litter maintenance, the time savings alone could justify the investment. More importantly, this represents genuine innovation in automated pet care designed around actual cat behavior rather than just engineering convenience.

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