- Cat weight
- 2.6 to 30 lb
- Max cats
- No limit published
- Litter
- Clumping mineral or
- Waste drawer
- 11 L bagged drawer
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Oneisall Ease S1
Open top self cleaning box with no app or subscription needed
Researched by Riley Hart · updated Nov 3, 2026
Is the Oneisall Ease S1 worth it? A simple, quiet open top box for owners who want automatic sifting without an app, Wi-Fi or a subscription. It costs $420 as of Nov 4, 2026, and 3 independent reviewers tested it.
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.
Best for: owners who want no app and no subscription. Skip if: you have a small space or a senior cat.
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
3 year cost of ownership
- Robot
- $420
- Total
- $420
No subscription. The standard model needs no app.
Status and safety
- US availability
- ● On sale
- Recalls
- ● No Oneisall robot recall in the CPSC database as of Nov 4, 2026. Checked daily.
- FCC authorized
- Not checked
- Company
- ● Active
- Warranty
- ● 2 years
Parts and refills for the Ease S1
- Replacement waste bags
Oneisall lists replacement bags from $19.99 but gives no count per pack or use rate, so no 3 year figure. Notebookcheck noted the bags are a specific size and were not in stock on Oneisall's site at review time. - Shop on Amazon →
- 12 mm litter guard for tofu or mixed litter
One time purchase, only needed for non mineral litter (Oneisall) - Shop on Amazon →
Check the part number matches your model before you order. Affiliate links.
Price history
Tracked dailyTracking started Nov 4, 2026 at $420.
Each day adds a point. Turn on a price alert to hear about drops.
Where to buy
- Amazon
- See price →
- Oneisall store
- $420 →
Affiliate links. We may earn a commission. It never changes our score. Disclosure
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
What independent reviewers found
- Month long test with two cats. Sifted 5 min after each visit with no buildup in corners and came apart in under 20 s. One cat avoided it for most of a week until used litter was mixed in, and the bin sensor was overly sensitive.
- Tom's Guide
- About a month of use: very quiet (spec sheet under 45 dB), kept the box clean 99% of the time, but got stuck a few times and needed a power cycle, and the dirty bin sensor sometimes false triggered on the bag. Oneisall supplied the sample.
- Notebookcheck
- Tested for weeks: the reviewer's cat and a friend's cat refused it, but two of three cats in another home used it without issue. Cleans itself well and is easy to wash; the entry is too high for many cats and the footprint is large.
- Reviewed
Spec history
Checked dailyNo spec changes since we started tracking on Nov 4, 2026.
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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.
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