# Oneisall Ease S1 review

Open top self cleaning box with no app or subscription needed

- Our score: not scored yet
- Price: $420 (checked Nov 4, 2026)
- Status: on sale
- Best for: owners who want no app and no subscription
- Skip if: you have a small space or a senior cat
- HTML version: https://robotsforthat.com/robot/oneisall-ease-s1/

## Verdict

A simple, quiet open top box for owners who want automatic sifting without an app, Wi-Fi or a subscription. Reviewers found it kept the box clean and easy to wash, though some cats refused it at first and the full bin sensor can trip early. Skip it if space is tight or you have a senior cat that struggles with a high entry.

## Pros

- No app or subscription needed
- Large 11 L drawer, up to 14 days for one cat
- 12 sensors pause cleaning when a cat approaches
- Tool free setup and easy to wash
- 2 year warranty

## Cons

- Bulky footprint, about 22 x 23 in
- High entry; step sold separately
- Full bin sensor can trigger early
- Some cats took a week or more to accept it
- Single unit price not shown on Oneisall's US store when checked

## Specs

- cat weight range: 2.6 to 30 lb, cats 6 months or older (Oneisall)
- max cats: No limit published; the drawer lasts up to 14 days for one cat and less with more cats (Oneisall). Reviewed saw it used in a three cat home
- waste drawer: 11 L bagged drawer, up to 14 days for one cat (Oneisall); slides out from either side (Notebookcheck)
- sensors: 12 sensors, 9 motion and 3 radar; cycle stops in 0.3 s when a cat approaches (Notebookcheck). Restarts 5 to 10 s after the area is clear (Oneisall)
- app: None on the standard Ease S1 that reviewers tested; Oneisall's store also sells a Pro with app version on 2.4 and 5 GHz Wi-Fi plus Bluetooth
- litter type: Clumping mineral or bentonite with the standard 5 mm guard; tofu and mixed litter need the 12 mm guard, sold separately at $39.99 (Oneisall)
- size: 22.05 x 23.03 x 21.97 in, open top (Oneisall); Reviewed found the entry too high for many cats without the optional step
- noise: Under 45 dB per the spec table in Notebookcheck's review; Oneisall publishes no dB figure
- cleaning cycle: Sifts 5 min after the cat leaves (Tom's Guide, Reviewed)
- warranty: 2 years, 30 day money back (Oneisall)

## Safety

- recalls: No CPSC recall found for Oneisall as of 2026-11-03 (web search of cpsc.gov recall listings; the CPSC database could not be queried directly from our tools, recheck before publishing).
- fcc: Not checked
- company status: Active
- warranty: 2 years

## Questions buyers ask

### Does it need an app or subscription?

No. The Ease S1 reviewers tested has no app and no subscription. Oneisall also sells a Pro version with app control over Wi-Fi and Bluetooth.

### What litter can I use?

Clumping mineral or bentonite litter works with the included 5 mm guard. For tofu or mixed litter, Oneisall sells a 12 mm guard for $39.99.

### Will my cat use it?

Not always right away. Tom's Guide's older cat avoided it for most of a week until used litter was mixed in, and Reviewed had two cats refuse it while two of three cats in another home took to it.

### How often do I empty it?

Oneisall says the 11 L drawer holds up to 14 days of waste for one cat, less for more cats.

## Sources

1. [Oneisall store: self cleaning automatic cat litter box](https://oneisall.com/products/oneisall-self-cleaning-automatic-cat-litter-box-for-multi-cat-homes)
2. [Tom's Guide: I handed over litter box duty to a robot for a month](https://www.tomsguide.com/home/i-handed-over-litter-duty-to-a-robot-for-a-month-and-my-cats-had-opinions)
3. [Notebookcheck: Oneisall Ease S1 review](https://www.notebookcheck.net/Oneisall-Ease-S1-auto-litterbox-review-Looks-as-good-as-it-performs.1261900.0.html)
4. [Reviewed: Oneisall Ease S1 review](https://www.reviewed.com/pets/content/oneisall-ease-self-cleaning-litter-box-review)