Ecovacs Deebot T90S Omni
A slightly cheaper T90S roller-mop robot for mixed-floor homes; check the price gap to the T90S Pro Omni before buying.
Amazon $679$679
The Ecovacs Deebot T90S Omni is the better robot vacuum overall, rated 4.3 to 4.2. The Ecovacs Deebot T90S Omni leads on mopping. The Dreame L40s Ultra AE costs $9.01 less ($669.99 vs $679).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Dreame L40s Ultra AE
For buyers who want an AI camera for obstacle avoidance and remote viewing on a full self-cleaning dock; for carpet and pet hair, the plain L40s Ultra measured better.
Amazon $669.99$669.99
Which should you buy?
- Choose the Ecovacs Deebot T90S Omni for mopping (Roller, lifts 15 mm, extends to edges vs Dual spinning pads, lifts 10.5 mm, extends to edges).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every self-cleaning dock robot vacuum; a clear win is highlighted. How we rank explains each one.
| Factor weight | Ecovacs Deebot T90S Omni | Dreame L40s Ultra AE |
|---|---|---|
| Overall rating | 4.3/5 | 4.2/5 |
| Cleaning 30% | 69 not yet tested; estimated from 11 tested Ecovacs robots and the median of the 80 tested robots | 66 measured 85% of sand from carpet, 80.8% of pet hair, no hair tangled |
| Value 25% | 60 $679 | 60 $670 |
| Dock 20% | 100 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent | 100 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent |
| Navigation 15% | 100 LiDAR + camera | 100 LiDAR + camera |
| Mopping 10% | 95 Roller, lifts 15 mm, extends to edges | 76 Dual spinning pads, lifts 10.5 mm, extends to edges |
Independent tests
Ecovacs Deebot T90S Omni
No independent test published yet.
Dreame L40s Ultra AE
| Tested by | Carpet deep clean | Pet hair | Hair tangle (0 = none) | Area per charge | Conditions |
|---|---|---|---|---|---|
| Vacuum Wars | 85% | 80.8% | 0 | 1,591 sq ft | Embedded sand in medium-pile carpet; flattened 2.5 in pet hair on carpet, two runs; 7 in hair tangle on hard floor (0 = none wrapped). |
Specifications
| Ecovacs Deebot T90S Omni | Dreame L40s Ultra AE | |
|---|---|---|
| Vacuum | ||
| Claimed suction | 35,000 Pa | 19,000 Pa |
| Main brush | anti-tangle main brush (ZeroTangle 4.0) | Liftable rubber brush with TriCut hair-cutting |
| Dustbin | - | 395 mL |
| Extending side brush | No | No |
| Mopping | ||
| Mop | Roller, lifts 15 mm, extends to edges | Dual spinning pads, lifts 10.5 mm, extends to edges |
| Mop lift | 15 mm | 10.5 mm |
| Leaves mop at dock | No | No |
| Extending mop | Yes | Yes |
| Dock | ||
| Dock | Washes mop + empties | Washes mop + empties |
| Self-empties | Yes | Yes |
| Dust bag | - | 3.2 L |
| Washes mop | Yes | Yes |
| Hot-water wash | Yes | Yes |
| Hot-air drying | Yes | Yes |
| Detergent dosing | Yes | Yes |
| Clean water tank | - | 4.5 L |
| Navigation & app | ||
| Navigation | LiDAR + camera | LiDAR + camera |
| Obstacle avoidance | AI camera with LED fill light (AIVI 3D 4.0) | AI camera, recognises 120+ object types |
| Climbs thresholds | 25 mm | 20 mm |
| Voice assistants | YIKO | Alexa, Google Assistant |
| Build | ||
| Height | - | 3.8 in (97 mm) |
| Retracting LiDAR | No | - |
| Battery | - | 5,200 mAh |
| Run time | - | Up to 3 h |
| Weight | - | 8.8 lb (4 kg) |
| Warranty | 1 year | 3 years |
| Released | 2026-09 | 2025-08 |