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 3.8. The Ecovacs Deebot T90S Omni leads on value. The Ecovacs Deebot T90S Omni costs $900 less ($799.99 vs $1,699.99).
Roborock Saros 20 Flow
For homes with lots of hard floor that want a roller mop with flagship suction and threshold climbing.
Amazon $1,699.99$1,699.99
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 $1,700).
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 Flow |
|---|---|---|
| Overall rating | 4.2/5 | 3.8/5 |
| Cleaning 30% | 71 not yet tested; estimated from 10 tested Ecovacs robots and the median of the 70 tested robots | 74 measured 89% of sand from carpet, 76.2% of pet hair, no hair tangled |
| Value 25% | 50 $800 | 3 $1,700 |
| Dock 20% | 100 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent | 90 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 | 95 Roller, lifts 15 mm, extends to edges |
Independent tests
Ecovacs Deebot T90S Omni
No independent test published yet.
Roborock Saros 20 Flow
| Tested by | Carpet deep clean | Pet hair | Hair tangle (0 = none) | Area per charge | Conditions |
|---|---|---|---|---|---|
| Vacuum Wars | 89% | 76.2% | 0 | 1,421 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 Flow | |
|---|---|---|
| Vacuum | ||
| Claimed suction | 35,000 Pa | 36,000 Pa |
| Main brush | anti-tangle main brush (ZeroTangle 4.0) | dual anti-tangle brush system |
| Dustbin | - | 245 mL |
| Extending side brush | No | No |
| Mopping | ||
| Mop | Roller, lifts 15 mm, extends to edges | Roller, lifts 15 mm, extends to edges |
| Mop lift | 15 mm | 15 mm |
| Leaves mop at dock | No | No |
| Extending mop | Yes | Yes |
| Water tank | - | 67 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 | - | No |
| Navigation & app | ||
| Navigation | LiDAR + camera | LiDAR + camera |
| Obstacle avoidance | AI camera with LED fill light (AIVI 3D 4.0) | Reactive AI with RGB recognition, 300+ object types |
| Climbs thresholds | 25 mm | 88 mm |
| Matter | - | Yes |
| Voice assistants | YIKO | - |
| Build | ||
| Height | - | 3.5 in (89.8 mm) |
| Retracting LiDAR | No | Yes |
| Battery | - | 6,400 mAh |
| Run time | - | Up to 5 h 1 min |
| Weight | - | 11.5 lb (5.2 kg) |
| Warranty | 1 year | 1 year |
| Released | 2026-09 | 2026-09 |