Ecovacs Deebot T90 Pro Omni · iRobot Roomba Plus 405 Combo

The OZMO Roller 3.0 delivers near-record dried-stain scores, but the 250 ml dustbin means the robot interrupts longer sessions to self-empty, effectively capping single-pass coverage on large open floors.

Mini-ToF LiDAR navigation is reliable in open layouts; in cluttered spaces, the system avoids obstacles by skipping whole zones rather than routing around them.

The dock adds a second failure point; if AutoWash is out of service, both the spinning-pad wash and the bin evacuation stop with it. Machines whose pads are washed by hand distribute that risk.

Cluttered rooms with dense furniture and thin chair legs

This record carries no verified independent navigation testing for the T90 Pro Omni, so its behavior around thin chair legs and dense clutter is unconfirmed. In tightly furnished rooms, coverage should be treated as unknown rather than assumed.

Homes with primarily high-pile or thick shag carpet

Carpet deep-clean performance is not verified for this model in this record. The documented feature set centers on the OZMO Roller mop and the washing dock, and no independent deep-extraction measurement supports use on high-pile or shag carpet.

Owners with large dustbin needs who run infrequent cleaning sessions

The onboard dustbin is 250 ml, roughly 30% smaller than the category average, requiring frequent dock returns during long sessions. Auto-empty mitigates this if the dock is accessible mid-run.

Households that need a documented Matter or HomeKit path

Ecovacs' T90 Pro Omni specification page lists no Matter, HomeKit, Alexa or Google Home support. Its smart-home material covers the AGENT YIKO assistant and Y-SpeechAI voice control instead. Anyone depending on a particular standard should confirm with Ecovacs before buying.

High-pile or shag carpet homes

The vacuum is tuned for low-pile and hard floors. iRobot publishes no suction figure for the 405, quoting only 70x more intense suction against the 600 series; third-party estimates put it near 7,000 Pa. Carpet detection lifts or skips the mop rather than dragging pads across pile, but deep pile still wants a separate machine.

Homes with 5 GHz-only Wi-Fi networks

Requires 2.4 GHz band for dock connection and app control. Homes without 2.4 GHz coverage will experience pairing failures and unreliable autonomous scheduling.

Owners preferring set-and-forget operation over 12 months

The AutoWash dock still wants regular attention: clean and dirty water tanks to fill and empty, a debris bag on a 75-day cycle, and spinning mop pads that wear out. Not a fire-and-forget system; tank checks every 2-3 weeks are realistic.