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 $799.99$799.99
The Ecovacs Deebot T90S Omni is the better robot vacuum overall, rated 4.2 to 3.9. The Ecovacs Deebot T90S Omni leads on value and mopping. The Ecovacs Deebot T90S Omni costs $800 less ($799.99 vs $1,599.99).
Roborock Saros 20
For mixed-floor homes with high thresholds and low furniture that want a flagship that also cleans carpet well.
Amazon Roborock $1,599.99$1,599.99
Prices were last checked October 26, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Ecovacs Deebot T90S Omni for value ($800 vs $1,600) and mopping (Roller, lifts 15 mm, extends to edges vs Dual spinning pads, leaves its mop at the dock for carpet, 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 | Roborock Saros 20 |
|---|---|---|
| Overall rating | 4.2/5 | 3.9/5 |
| Cleaning 30% | 71 not yet tested; estimated from 10 tested Ecovacs robots and the median of the 70 tested robots | 80 measured 89% of sand from carpet, 88% of pet hair, no hair tangled |
| Value 25% | 50 $800 | 7 $1,600 |
| 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, optional water hookup |
| Navigation 15% | 100 LiDAR + camera | 100 LiDAR + camera |
| Mopping 10% | 95 Roller, lifts 15 mm, extends to edges | 86 Dual spinning pads, leaves its mop at the dock for carpet, extends to edges |
Independent tests
Ecovacs Deebot T90S Omni
No independent test published yet.
Roborock Saros 20
| Tested by | Carpet deep clean | Pet hair | Hair tangle (0 = none) | Area per charge | Conditions |
|---|---|---|---|---|---|
| Vacuum Wars | 89% | 88% | 0 | 1,039 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 | Roborock Saros 20 | |
|---|---|---|
| Vacuum | ||
| Claimed suction | 35,000 Pa | 36,000 Pa |
| Main brush | anti-tangle main brush (ZeroTangle 4.0) | DuoDivide anti-tangle brush |
| Dustbin | - | 259 mL |
| Extending side brush | No | Yes |
| Mopping | ||
| Mop | Roller, lifts 15 mm, extends to edges | Dual spinning pads, leaves its mop at the dock for carpet, extends to edges |
| Mop lift | 15 mm | 15 mm |
| Leaves mop at dock | No | Yes |
| Extending mop | Yes | Yes |
| Water tank | - | 65 mL |
| Dock | ||
| Dock | Washes mop + empties | Washes mop + empties |
| Self-empties | Yes | Yes |
| Washes mop | Yes | Yes |
| Hot-water wash | Yes | Yes |
| Hot-air drying | Yes | Yes |
| Detergent dosing | Yes | Yes |
| Water hookup option | - | Yes |
| Navigation & app | ||
| Navigation | LiDAR + camera | LiDAR + camera |
| Obstacle avoidance | AI camera with LED fill light (AIVI 3D 4.0) | 3D ToF and RGB camera, recognises 300+ object types |
| Climbs thresholds | 25 mm | 88 mm |
| Matter | - | Yes |
| Voice assistants | YIKO | Alexa, Google Assistant, Siri Shortcuts |
| Build | ||
| Height | - | 3.1 in (79.8 mm) |
| Retracting LiDAR | No | No |
| Battery | - | 6,400 mAh |
| Run time | - | Up to 3 h 20 min |
| Warranty | 1 year | 1 year |
| Released | 2026-09 | 2026-03 |