Goal-based/Robot Vacuums/3 robots compared/Reviewed Jun 2026
Slim and low-profile robot vacuums: cleaning under furniture without losing the dock
Full specifications20 measurements · 50 of 60 documented
The investigation
5 questions this comparison examines
How low does each robot's body actually sit?
Body height is the first constraint. Manufacturer-published dimensions determine whether a robot can enter at all, before any discussion of what it does once inside.
Roborock Qrevo Slim
SwitchBot Floor Cleaning Robot S20
Qrevo Curv 2 FlowRoborock Qrevo Slim dimensions verified against Roborock US product page and spec verification records in the Robovations product records, checked 2026-06-23.
SwitchBot S20 height of 3.7 in drawn from SwitchBot US product page specifications, accessed June 2026. Minimum clearance not documented by manufacturer.
Roborock Qrevo Curv 2 Flow height of 3.8 in per manufacturer spec sheet referenced in the Robovations product records, last evaluated April 2026.
Does a slimmer body mean weaker suction?
Reducing chassis height requires engineering choices about motor placement and airflow. Manufacturer suction ratings offer the clearest proxy for whether those compromises carry through to cleaning power.
Roborock Qrevo SlimSwitchBot Floor Cleaning Robot S20Qrevo Curv 2 FlowQrevo Slim suction rated at 11,000 Pa per Roborock specification sheet; product FAQ in Robovations database confirms slim form does not reduce motor output versus Qrevo S.
Qrevo Curv 2 Flow suction rated at 20,000 Pa per manufacturer spec, the only figure in this comparison materially above the 10,000-11,000 Pa band of the slim-form units.
SwitchBot S20 suction rated at 10,000 Pa per manufacturer product page. No independent third-party bench measurement documented for this comparison.
What dock automation does each robot retain at slim height?
Dock automation (auto-empty, mop wash, water management) often scales with robot height because dock connectors and plumbing grow with chassis size. This section traces what each product retains.
Roborock Qrevo SlimSwitchBot Floor Cleaning Robot S20Qrevo Curv 2 FlowRoborock Qrevo Slim dock water capacity (4L clean, 3L waste) drawn from product FAQ in Robovations product records; mop wash at dock confirmed in Roborock documentation.
SwitchBot S20 RinseSync dock mop-pad washing documented on SwitchBot US product page; owner reports in Robovations entry note pad saturation across consecutive washes.
Qrevo Curv 2 Flow dock heats water to 104F (40C), confirmed in product FAQ within Robovations product records, making it the only model in this group with documented heated wash.
How does runtime compare across body heights?
A slimmer chassis constrains battery volume. Runtime in large or furniture-dense homes depends on whether that constraint translates to materially fewer minutes per charge.
Roborock Qrevo SlimSwitchBot Floor Cleaning Robot S20Qrevo Curv 2 FlowQrevo Slim 110-minute runtime and 64 Wh battery pulled from manufacturer spec in Robovations product records; product FAQ notes 1,500-1,700 sqft single-pass coverage estimate.
SwitchBot S20 165-minute runtime per SwitchBot US product page. Battery Wh not published by manufacturer. Robovations database notes 3,000 sqft single-pass coverage estimate from manufacturer.
Qrevo Curv 2 Flow 180-minute runtime and 75 Wh battery per Roborock spec sheet in Robovations product records. Longer charge time reflects larger pack.
What does each model cost relative to its clearance benefit?
Slim profiles command price premiums in this category. Documenting MSRP and where current prices sit relative to that reveals whether the clearance differential is priced proportionally.
Roborock Qrevo SlimSwitchBot Floor Cleaning Robot S20Qrevo Curv 2 FlowQrevo Slim MSRP of $1,399 and current price of $799 drawn from Robovations product records, verified June 2026. The $600 spread is unusually wide.
SwitchBot S20 MSRP $799.99 per the Robovations product record; current price not on file as of June 2026. price range record shows $799.
Qrevo Curv 2 Flow MSRP $999.99 per the Robovations product record; the recorded price range shows $800-$900, suggesting street price below list. Released January 2026 per the release date record.
In closing
What the evidence shows
Patterns that emerged across the questions above.
Slim height carries a real but narrow access advantage
The Qrevo Slim's 8.2 cm body is meaningfully shorter than the 9.4-9.65 cm bodies of the S20 and Curv 2 Flow; on furniture sitting 8.5-9 cm off the floor that gap determines access, not merely convenience.
Dock automation is largely preserved across all three
All three models include auto mop-pad washing at dock; the Qrevo Curv 2 Flow adds documented heated water at 40C, a feature absent in published specifications for the other two.
The slim-form premium is priced at the MSRP level, not street level
Qrevo Slim MSRP of $1,399 is $400-$600 above the other two, but a documented current price of $799 collapses that gap; price comparison depends heavily on which figure applies at time of purchase.
Common questions