Ecovacs Deebot X9 Pro Omni vs SwitchBot S20
Researched by Riley Hart · prices checked Oct 31, 2026
As of Oct 31, 2026, the Ecovacs Deebot X9 Pro Omni costs $800 and the SwitchBot S20 costs $800. The Ecovacs Deebot X9 Pro Omni scores higher in our ranking (7.7 vs 7.0 out of 10). Pick the Ecovacs Deebot X9 Pro Omni for hard floor homes that want top mopping. Pick the SwitchBot S20 for hard floor homes that want roller mopping on a budget.
- Suction
- 16,600 Pa and 16.3 L/s
- Navigation
- dToF laser
- Mopping
- OZMO Roller 175 mm
- Runtime
- Up to 252 min silent
A former flagship that now costs about $800, with one of the best mops Vacuum Wars has tested and very strong airflow. It suits homes with lots of hard floor and pets. Skip it if you need long runtime per charge or a big onboard bin, or if fringed rugs are common in your home.
Full Ecovacs Deebot X9 Pro Omni review →- Suction
- 10,000 Pa
- Navigation
- dToF LiDAR
- Mopping
- RevoRoll roller mop
A good value all in one mopping robot when it is on sale, with a roller mop that testers liked and AI camera obstacle avoidance. It is loud, tall and large, and TechRadar saw docking problems, so it suits open homes more than tight ones. Skip it if you need a mop only mode or quiet runs.
Full SwitchBot S20 review →Side by side
| Ecovacs Deebot X9 Pro Omni | SwitchBot S20 | |
|---|---|---|
| Price | $800 | $800 |
| 3 year cost | $1,100 | $1,100 |
| Our score | 7.7/10 | 7.0/10 |
| Rank in Floors | #12 | #22 |
| Status | on sale | on sale |
| Warranty | 1 year (MacRumors) | 1 year (SwitchBot store) |
| Suction | 16,600 Pa and 16.3 L/s airflow (Ecovacs); Vacuum Wars measured 2.76 kPa and 27 CFM, the highest airflow it had recorded at the time | 10,000 Pa with four levels (SwitchBot, Expert Reviews) |
| Navigation | dToF laser with TruEdge 3D edge sensor (Ecovacs); Vacuum Wars measured 0.93 m2 per minute, above the 0.70 average, but BGR saw mapping errors that took about 20 minutes to fix | dToF LiDAR plus AI camera (SwitchBot); Expert Reviews found mapping fast, while TechRadar saw some erratic routes and frequent failed docking |
| Obstacle avoidance | RGBD camera with structured light, AIVI 3D 3.0 (Ecovacs); Vacuum Wars scored 19 of 24 against a 17 average | AI camera, front infrared and side PSD sensors (SwitchBot); TechRadar saw it avoid a cable and a shoe but push a tissue box across the room |
| Mopping | OZMO Roller 175 mm roller mop, 3,700 Pa pressure, up to 220 rpm, extends to edges, 10 mm lift (Ecovacs); Vacuum Wars scored 158 of 184 on dried stains against a 93 average | RevoRoll roller mop with 1 kg of pressure, 300 scrubs per minute and a 4 step rinse while mopping (SwitchBot); no mop only mode (Expert Reviews, HomeKit News) |
| Self empty | Yes, 3 L dust bag in the dock (Ecovacs) | Yes, the station stores dust for up to 90 days (SwitchBot); TechRadar lists a 4 L dock bin |
| Dock features | Auto empty, hot water mop wash (40 to 75 C), 63 C hot air drying, auto detergent, 4 L clean and 2.2 L dirty tanks, station self cleaning (Ecovacs) | Auto empty, auto water refill, mop washing and 50 C hot air drying (SwitchBot); 2.5 L clean and 2.5 L dirty tanks (TechRadar, Expert Reviews), while SwitchBot's launch notice listed 2.7 L clean; an Auto-Fill and Drain version connects to home plumbing |
| Runtime | Up to 252 min silent vacuum, 158 min vacuum and mop (Ecovacs); Vacuum Wars measured 200 min at low power and about 876 sq ft per charge, below the 1,015 sq ft average | Not stated by SwitchBot; 4,000 mAh battery and under 4 hours to charge (SwitchBot) |
| Dustbin | 220 ml robot bin (Ecovacs; Vacuum Wars notes the 388 ml average) | n/a |
| Height | 98 mm, 3.86 in (Ecovacs); Vacuum Wars measured 3.80 in; MacRumors says 3.85 in | 115 mm (4.5 in) tall, 365 mm (14.4 in) wide (SwitchBot, TechRadar) |
| Pet hair | Vacuum Wars measured 93% flattened pet hair pickup and 0% hair wrap on its 7 in hair test | Expert Reviews measured 5 of 5 g pet hair on hard floor and 3.8 of 5 g on carpet |
| App | Ecovacs Home app with YIKO voice assistant; Matter support (MacRumors needed iOS 18.4 or later for Apple Home) | SwitchBot app, Alexa, Google Assistant and Matter 1.4; HomeKit News found rooms show in Apple Home, but the SwitchBot app is still needed for setup and maps |
| Threshold | 20 mm (Ecovacs; Vacuum Wars calls this average) | Crosses obstacles up to 20 mm (SwitchBot) |
| Noise | 64.5 dBA vacuuming, 79.2 dBA while emptying (Ecovacs); MacRumors found vacuuming too loud for night use | Expert Reviews measured 65 dBA at 1 m; TechRadar called it louder than average in every mode with a very loud auto empty |
| Best for | hard floor homes that want top mopping | hard floor homes that want roller mopping on a budget |
| Skip if | you have many fringed or thin rugs | you want quiet cleaning or have low furniture |
Specs are maker claims unless a reviewer is named. Prices from the stores we link, checked daily.
What reviewers found
Ecovacs Deebot X9 Pro Omni
- Vacuum Wars: Measured 2.76 kPa suction and 27 CFM airflow, 93% pet hair pickup, 0% hair wrap, 158 of 184 on dried stains and 89% carpet deep clean. Coverage was 876 sq ft per charge against a 1,015 sq ft average. Source
- MacRumors: Three months of testing. Long hair did not tangle the brush, mopping and navigation beat the X8 Pro Omni, and Siri control through Matter worked. Thin rugs caused frequent tangles and vacuuming was loud. About 1,000 sq ft per charge. Source
- BGR (9/10): Called the roller mop the best robot mop available and vacuuming very good. Mapping was error prone and needed about 20 minutes of fixes, and tanks are no longer see through. Source
SwitchBot S20
- TechRadar: Effective roller mop and strong obstacle avoidance, but louder than average in every mode, regular docking failures and some erratic navigation. Subscores: Value 3.5/5, Design 4/5, Performance 3/5, App 3.5/5. Source
- Expert Reviews: Picked up 50 of 50 g rice and 5 of 5 g pet hair on hard floor, 29.4 of 50 g flour on carpet, and removed dried mud in two passes and ketchup in three. Measured 65 dBA at 1 m. Source
- HomeKit News (8/10): Solid obstacle avoidance that was sometimes overcautious; Matter 1.4 rooms work in Apple Home, but there is no mop only option and cleaning fluid must be added by hand. Source
Pros and cons
Ecovacs Deebot X9 Pro Omni
Pros
- Top mopping scores from Vacuum Wars
- Very high measured airflow and pet hair pickup
- No hair wrap in Vacuum Wars testing
- Hot water wash, hot air drying and auto detergent
- Matter support for Apple Home and others
Cons
- Coverage per charge below average
- Small 220 ml robot bin
- Mapping errors reported by BGR
- Thin and fringed rugs tangle it, per MacRumors
- Chatty voice prompts
SwitchBot S20
Pros
- Roller mop cleans itself while it mops
- Good AI obstacle avoidance
- Full dock with hot air drying
- Matter 1.4 with room support in Apple Home
- Often discounted well below list price
Cons
- Loud, especially when auto emptying
- Docking problems in TechRadar testing
- No mop only mode
- Large robot and dock
- Cleaning solution added by hand
Questions buyers ask
Which is better, the Ecovacs Deebot X9 Pro Omni or the SwitchBot S20?
The Ecovacs Deebot X9 Pro Omni scores higher in our ranking (7.7 vs 7.0 out of 10). Pick the Ecovacs Deebot X9 Pro Omni for hard floor homes that want top mopping. Pick the SwitchBot S20 for hard floor homes that want roller mopping on a budget.
What is the difference between the Deebot X9 Pro Omni and the S20?
Suction: 16,600 Pa and 16.3 L/s airflow (Ecovacs); Vacuum Wars measured 2.76 kPa and 27 CFM, the… on the Deebot X9 Pro Omni, 10,000 Pa with four levels (SwitchBot, Expert Reviews) on the S20. Navigation: dToF laser with TruEdge 3D edge sensor (Ecovacs); Vacuum Wars measured 0.93 m2 per… on the Deebot X9 Pro Omni, dToF LiDAR plus AI camera (SwitchBot); Expert Reviews found mapping fast, while… on the S20. Obstacle avoidance: RGBD camera with structured light, AIVI 3D 3.0 (Ecovacs); Vacuum Wars scored 19 of 24… on the Deebot X9 Pro Omni, AI camera, front infrared and side PSD sensors (SwitchBot); TechRadar saw it avoid a… on the S20.
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