Ecovacs DEEBOT T90S Omni Review: A Self-Washing Roller Mop With 40,000 Pa of Suction
The DEEBOT T90S Omni brings Ecovacs' roller-mop platform down a tier: the OZMO Roller 3.0 rinses itself with a 32-way pressurized fresh-water flow while it scrubs, and the OMNI station washes the roller with hot water, dries it, empties the dust and dispenses the cleaning solution on its own. With up to 40,000 Pa of BLAST suction and a long runtime it suits hard-floor homes with rugs and pet owners, and Matter, Alexa and Google Home cover the main smart-home ecosystems. The trade-offs are a 2.4 GHz-only Wi-Fi radio, a modest 250 ml onboard dustbin and an unpublished unit weight.
- Hard floors with rugs
- Pet owners
- Multi-room homes
- Matter and smart-home households
Pros
- Up to 40,000 Pa BLAST suction with 33.9 CFM airflow
- OZMO Roller 3.0 self-washing roller mop with 32-way pressurized water flow
- OMNI station washes the roller with hot water, dries it, empties dust and dispenses detergent
- 4 L clean-water tank and 2.5 L dock dustbin for long maintenance intervals
- TruEdge 3.0 reaches about 1.5 cm past the body for edges and baseboards
- AIVI 3D 4.0 obstacle avoidance with LED assistance
- Battery rated at up to 245 minutes with 3.5-hour charging
- Matter support for Apple Home, Google Home and SmartThings
Cons
- Unit and dock weights are not published
- 2.4 GHz Wi-Fi only, no 5 GHz
- Onboard dustbin is a modest 250 ml
- Mop lift of about 15 mm is modest for thick carpet
- Apple Home and SmartThings only over Matter, no native integration
- Cliff detection and child lock are not documented
Who is the Ecovacs DEEBOT T90S Omni for?
This is a robot for homes that are mostly hard floor with rugs scattered through them, where mopping matters as much as vacuuming. The OZMO Roller 3.0 scrubs with a self-washing roller and rinses it with a 32-way pressurized fresh-water flow while it works, so the roller is refreshed as it cleans instead of smearing dirt around. Pet households are the other clear fit: the ZeroTangle 4.0 main and side brushes are designed to keep hair from wrapping, and the roller lifts about 15 mm on carpet so rugs are not left wet. Larger homes benefit from the battery rated at up to 245 minutes, which is enough for a whole-floor job without stopping halfway.
What the DEEBOT T90S Omni offers
The vacuum side is built around the BLAST system and up to 40,000 Pa of suction with 33.9 CFM of airflow, aimed at embedded dust and pet hair on both carpet and hard floor. TruEdge 3.0 extends the roller about 1.5 cm beyond the body to reach baseboards and under cabinets, while AIVI 3D 4.0 uses structured-light and RGB AI vision, with LED assistance, to recognise and avoid everyday obstacles. The OMNI station is the automation story: it washes the roller with hot water, dries it with hot air, empties the onboard 250 ml dustbin into a 2.5 L dock bin, dispenses cleaning solution automatically and refills from a 4 L clean-water tank. Matter support puts it into Apple Home, Google Home and SmartThings, and there is also an integration for Home Assistant.
What to know before you buy
Ecovacs is quiet about some basics on this model. The unit and dock weights are not published, so planning the footprint and the lift is harder than it should be. It connects over 2.4 GHz Wi-Fi only, with no 5 GHz option, and the onboard dustbin is a modest 250 ml, which is fine because the station empties it for you. The mop lift is about 15 mm, which clears most low-pile rugs but is a little short for thicker carpet compared with some rivals. Apple Home and SmartThings arrive through Matter rather than a native integration, so they need a Matter controller in the home, and cliff detection and a child lock are not documented.
Is the Ecovacs DEEBOT T90S Omni worth it?
It sits in the premium bracket, and for that money you get a genuinely automatic roller-mop system, strong suction, edge cleaning that reaches the wall and a dock that handles washing, drying, emptying and detergent. The main things you give up are published weight figures, 5 GHz Wi-Fi and native HomeKit or SmartThings; the main things you gain are the self-washing roller and a broad ecosystem reach over Matter. If the mopping and the hands-free dock matter more than spec-sheet transparency, it is a strong pick.
Frequently asked questions
Does the DEEBOT T90S Omni clean its own mop?
Yes. The OZMO Roller 3.0 rinses itself with a pressurized fresh-water flow while it scrubs, and the OMNI station then washes the roller with hot water, dries it with hot air, empties the dust and dispenses the cleaning solution automatically.
Which smart-home systems does it work with?
It works with Amazon Alexa and Google Home, and Matter support brings it into Apple Home and Samsung SmartThings. Ecovacs also provides a Home Assistant integration.
How long does it run on a charge?
The battery is rated for up to 245 minutes, and a full charge takes about 3.5 hours.
What Wi-Fi band does it use?
It connects over 2.4 GHz Wi-Fi only. There is no 5 GHz option, which is common on robot vacuums but worth knowing on a busy Wi-Fi 6 or 7 network.
Does it wet carpets?
No. During carpet cleaning the wet roller lifts about 15 mm so it stays clear of the carpet fibres while the robot vacuums.



