Does the Qrevo Slim's 8.2 cm height mean it fits under all couches?

No. The Roborock Qrevo Slim's record puts its height at 3.23 in (8.2 cm), which the record says reaches under most beds, couches and built-ins, not all of them. Anything with less clearance than that blocks it, and the record gives no recommended margin above the body height, so measure the gap first. For comparison, the SwitchBot S20 is 4.5 in tall and the Roborock Qrevo Curv 2 Flow 4.7 in.

Does the thinner Qrevo Slim give up suction power compared to the Curv 2 Flow?

Not verified on these records. Neither the Roborock Qrevo Slim's record nor the Roborock Qrevo Curv 2 Flow's states a suction figure, so the two cannot be compared on it. The Qrevo Slim's record notes its core autonomy and reliability track the Qrevo S, and that its slim form costs dust and water tank capacity. The SwitchBot S20's record lists 10,000 Pa.

How do the SwitchBot S20's and Roborock docks compare at washing the mop?

None of these robots' records compares wash quality between docks. The SwitchBot S20's RevoRoll roller is wetted, scrubbed, squeezed and drained continuously while it works, and its base can plumb into a water line and drain. The Roborock Qrevo Curv 2 Flow's dock washes its roller in hot water and dries it, and the Roborock Qrevo Slim's dock washes its pads in hot water and dries them with warm air. A wash temperature figure is not verified on any of the three records.

Which model runs longest on a single charge?

The Roborock Qrevo Curv 2 Flow's record lists 180 minutes and the SwitchBot S20's 165 minutes. The Roborock Qrevo Slim's record also lists 180 minutes, a figure for its quietest suction mode; runs at normal suction are shorter. Its battery is 64 Wh against the Curv 2 Flow's 75 Wh, and its record notes homes over 2,000 sq ft may need two runs a day.

Is the Qrevo Slim's $1,399 MSRP the price shoppers actually pay?

The Roborock Qrevo Slim's record lists it at $1,399, and notes the Qrevo S at $799.99 for comparison. What shoppers pay at a given moment is not on the record. The SwitchBot S20 lists at $799.99 and the Roborock Qrevo Curv 2 Flow at $999.99. Check current prices at the time of purchase.

Comparisons · Robot Vacuums3 robots · checked 2 Oct 2026

A situation

Slim and low-profile robot vacuums: cleaning under furniture without losing the dock

Furniture access is set by body height. The question is what each low robot keeps or gives up in its dock, suction and bin to get under the couch.

This page checks

Body heightThe robot alone, without its dock
Dock jobsEmpty, hot wash, refill, dry
SuctionMaker figure in Pa
Bin and mop liftWhat the thin body holds

Roborock

Qrevo Slim

IVEnvironmentalStrong

$1,399list

Where to buy

Manufacturer site Amazon

Sep 2024Launches at IFA 2024 with StarSight solid-state LiDAR

SwitchBot

Floor Cleaning Robot S20

IIIConditionalStrong

$799.99list

Where to buy

Amazon

Nov 2025SwitchBot S20 Matter 1.4 certification confirmed across major smart-home platforms

Roborock

Qrevo Curv 2 Flow

IIIConditionalStrong

$999.99list

Where to buy

Manufacturer site Amazon

Jan 2026Announced at CES 2026 with 20,000 Pa suction

Full specifications18 figures on record · 15 differ

Figure

Qrevo Slim

Floor Cleaning Robot S20

Qrevo Curv 2 Flow

List price

Qrevo Slim$1,399

Floor Cleaning Robot S20$799.99

Qrevo Curv 2 Flow$999.99

Released

Qrevo SlimSep 2024

Floor Cleaning Robot S20Sep 2025

Qrevo Curv 2 FlowJan 2026

Dock

Qrevo SlimAuto-empty, hot-water mop washing, warm-air drying, auto water refill

Floor Cleaning Robot S20Auto-empty

Qrevo Curv 2 FlowAuto-empty, mop washing, hot-water washing, drying

Onboard bin

Qrevo Slim220 mL

Floor Cleaning Robot S20310 mL

Qrevo Curv 2 Flow325 mL

Water tank

Qrevo Slim72 mL

Floor Cleaning Robot S20Not on record

Qrevo Curv 2 FlowNot on record

Dock dust bag

Qrevo Slim2.7 L

Floor Cleaning Robot S204 L

Qrevo Curv 2 Flow2.7 L

Mop lift

Qrevo Slim10 mm

Floor Cleaning Robot S207 mm

Qrevo Curv 2 Flow15 mm

Weight

Qrevo Slim9 lb

Floor Cleaning Robot S2012.1 lb

Qrevo Curv 2 Flow10.1 lb

Runtime

Qrevo Slim180 min

Floor Cleaning Robot S20165 min

Qrevo Curv 2 Flow180 min

Charge time

Qrevo Slim180 min

Floor Cleaning Robot S20240 min

Qrevo Curv 2 Flow240 min

Battery capacity

Qrevo Slim64 Wh

Floor Cleaning Robot S20Not on record

Qrevo Curv 2 Flow75 Wh

Suction

Qrevo Slim11,000 Pa

Floor Cleaning Robot S2010,000 Pa

Qrevo Curv 2 Flow20,000 Pa

Noise

Qrevo Slim66 dB

Floor Cleaning Robot S20Not on record

Qrevo Curv 2 Flow62 dB

Navigation

Qrevo SlimStarSight solid-state LiDAR + camera + obstacle avoidance

Floor Cleaning Robot S20LiDAR + camera + AI obstacle avoidance

Qrevo Curv 2 FlowLiDAR mapping with AI-assisted obstacle avoidance, camera-based dynamic detection, app-guided multi-floor selection.

Connectivity

Qrevo SlimWi-Fi, Matter, Apple HomeKit, Alexa, Google Home

Floor Cleaning Robot S20Wi-Fi, Matter

Qrevo Curv 2 FlowWi-Fi, Bluetooth, Alexa, Google Home

Size

Qrevo Slim13.9 × 13.8 × 3.23 in

Floor Cleaning Robot S2014.4 × 14.4 × 4.5 in

Qrevo Curv 2 Flow13.9 × 13.9 × 4.7 in

The same on all three

Threshold climb

Qrevo Slim0.8 in

Floor Cleaning Robot S200.8 in

Qrevo Curv 2 Flow0.8 in

Battery type

Qrevo SlimLi-ion

Floor Cleaning Robot S20Li-ion

Qrevo Curv 2 FlowLi-ion

Add a robot256 robot vacuums on record + Add a robot256 robot vacuums on record

Some links earn Robovations a commission. Nothing on this page is ranked by it.

Under the furniture

What a low body costs in the dock and the hardware

The Qrevo Slim is lowest at 3.23 in, about 1.3 in under the S20 and 1.5 in under the Curv 2 Flow. Its dock still empties, washes with hot water, refills and dries. Its suction (11,000 Pa) and bin (220 mL) are smaller than the Curv 2 Flow's (20,000 Pa, 325 mL).

RoborockQrevo Slim

SwitchBotFloor Cleaning Robot S20

RoborockQrevo Curv 2 Flow

1Body heightRobot alone, floor to top

Qrevo Slim

3.23in

Maker lists 3.23 in (82 mm).

Roborock US product page

Floor Cleaning Robot S20

4.5in

4.5 in (115 mm) in a hands-on review's spec list. SwitchBot's product page prints no height.

Hands-on review

Qrevo Curv 2 Flow

4.7in

Maker lists 4.7 in (119 mm) and 13.9 x 13.9 x 4.7 in.

Roborock US product page

2Dock jobsWhat the base does without you

Qrevo Slim

Empties the bin
Hot-water mop wash
Refills water tank
Warm-air drying

Hot wash at 140 °F. Dust bag lasts up to 7 weeks.

Roborock US product page

Floor Cleaning Robot S20

Empties the bin
Refills water tank
Warm-air drying

Drying at 122 °F. Maker page does not say the wash water is heated.

SwitchBot product page

Qrevo Curv 2 Flow

Empties the bin
Hot-water mop wash
Warm-air drying

Hot wash at 167 °F, drying at 131 °F. Maker pages do not mention refilling the robot's tank.

Roborock US product pages

3SuctionMaker figure, max mode

Qrevo Slim

11,000Pa

Roborock US product page

Floor Cleaning Robot S20

10,000Pa

SwitchBot product page

Qrevo Curv 2 Flow

20,000Pa

Roborock US product page

4Onboard dustbinBefore the dock empties it

Qrevo Slim

220mL

Hands-on review figure.

Hands-on review

Floor Cleaning Robot S20

310mL

Hands-on review figure.

Hands-on review

Qrevo Curv 2 Flow

325mL

Hands-on review figure.

Hands-on review

5Mop lift on carpetHow far the mop rises

Qrevo Slim

0.39in (10 mm)

Roborock US product page

Floor Cleaning Robot S20

0.28in (7 mm)

Hands-on review

Qrevo Curv 2 Flow

0.59in (15 mm)

Roborock US product page

Same on all three: a dock that empties the bin into a dust bag and dries the mop with warm air, and LiDAR navigation.

Fit CheckQrevo Slim, Floor Cleaning Robot S20 and Qrevo Curv 2 Flow carry the same verdict on every condition their Fit Checks share, so a fit control would give the same answer for each. Each robot’s own page has its full Fit Check.

Everything else

Where they land among 259 robot vacuums

Only the measures on which these three differ. The bar is the whole category; the block is the typical middle half; the tick is the median.

HeightRobot body

Qrevo Slim

3.2 in

Floor Cleaning Robot S20

4.5 in

Qrevo Curv 2 Flow

4.7 in

2.6typical 3.6–4 · median 3.87.8

SuctionMaker figure

Qrevo Slim

11,000 Pa

Floor Cleaning Robot S20

10,000 Pa

Qrevo Curv 2 Flow

20,000 Pa

1,000typical 5,160–22,000 · median 10,00042,000

List priceThe maker's list

Qrevo Slim

$1,399

Floor Cleaning Robot S20

$800

Qrevo Curv 2 Flow

$1,000

$160typical $549–$1,200 · median $800$2,600

Sources

Where every figure comes from

Qrevo Slim · us.roborock.com product page and Qrevo Slim page; one hands-on review for the bin size
Floor Cleaning Robot S20 · switch-bot.com product page; one hands-on review for height, bin and mop lift
Qrevo Curv 2 Flow · us.roborock.com product pages; global.roborock.com page; one hands-on review for the bin

Each figure was read from the page listed on 2 Oct 2026. Where only a review carries a number it is marked as independent.

Questions

What readers ask

Does a lower robot give up its dock features?

Not for the Qrevo Slim. Roborock lists auto-empty, hot-water mop washing, water refill and warm-air drying on its dock. The Curv 2 Flow pages list all but refilling.

Does the thinner robot have weaker suction?

On the maker figures, yes. The Qrevo Slim lists 11,000 Pa, the S20 10,000 Pa and the Curv 2 Flow 20,000 Pa. These are maker claims; no lab figure was found.

Will 3.23 in clear every couch?

Not found. Furniture clearance varies by piece, and no source here tested it. Measure the gap under yours against the 3.23 in body height.

Common questions

What readers ask about this comparison.

Next up

Self-washing vs charge-only robot vacuum docks: what changes?

Read the comparison

Comparison ID: RV–CMP–7446 · Last reviewed Jun 23, 2026 · Based on owner reports, manufacturer documentation, and firmware release notes

Suggest a correction