Does the Roborock Qrevo MaxV's camera really recognize 62 different object types?

That figure is Roborock's. The Roborock Qrevo MaxV record cites manufacturer specs for an RGB camera with structured-light assist that recognizes roughly 62 object types across 20 categories and works in dim light with LED assist. The record cites no independent test of that count, and it notes occasional false-positive obstacle detection causing path delays. The Ecovacs Deebot T50S Pro Omni and Dreame L40 Ultra Gen 2 records state no object count for their obstacle avoidance.

Does the Ecovacs Deebot T50S Pro Omni dock actually empty the dust bin automatically?

Yes, according to its record. The Ecovacs Deebot T50S Pro Omni station empties the robot into a 3 L dust bag, and it also washes the pads at 167°F, dries them and refills the robot's tank between passes. The owner still keeps the reservoir topped up, empties the dirty-water tank and replaces the dust bag. Separately, its readiness is listed as Known Issues because independent testing documented a room-targeting failure that recurred after a factory reset.

Do higher Pa suction numbers mean better carpet cleaning?

Not consistently. The Ecovacs T50S Pro Omni and Dreame L40 Ultra Gen 2 both list 25,000 Pa, over three times the Qrevo MaxV's 7,000 Pa, yet all three separately document reduced performance on high-pile or shag carpet in their own specification records.

Which of these three vacuums works with a voice assistant offline?

Of these three, only the Roborock Qrevo MaxV record documents an offline voice assistant: it responds to "Hello Rocky" without cloud relay, and Roborock also documents Alexa, Google Home and Siri Shortcuts integration for networked control. Neither the Ecovacs Deebot T50S Pro Omni record nor the Dreame L40 Ultra Gen 2 record mentions voice-assistant support, so it is not verified for either.

Which product publishes a specific number for edge or corner mopping coverage?

None of the three records gives an edge coverage percentage. The Roborock Qrevo MaxV record says its FlexiArm reaches within 1.85 mm of walls and corners. The Ecovacs Deebot T50S Pro Omni record names TruEdge 2.0, which reaches into edge corners, without a figure. The Dreame L40 Ultra Gen 2's Dual Flex Arm swings the mop pad out toward the baseboard and extends the side brush into corners; its record gives no figure either.

Comparisons · Robot Vacuums3 robots · checked 2 Oct 2026

Claims against testing

Do robot vacuum AI navigation features actually work as advertised?

Each maker says its camera and sensors steer the robot around what is on the floor. This page sets those claims beside what independent testing recorded for the same model.

This page checks

What the maker says it seesObject counts and the items named
What it sees withSensors and whether a camera is fitted
The independent lab scoreHow the model did on a set obstacle course
Objects testers put in its pathCables, pet mess, toys

Roborock

Qrevo MaxV

IIIConditionalExemplary

$1,399.99list

Where to buy

Manufacturer site Amazon

Aug 2024Firmware update addresses Qrevo MaxV obstacle detection and mop lift accuracy

Ecovacs

Deebot T50S Pro Omni

IIIConditionalNot scored yet

$499.99list

Where to buy

Amazon

Apr 2026T50S Pro Omni Owner Reports Document Dock Filter and Mop-Pad Clogging Patterns

Dreame

L40 Ultra Gen 2

IIIConditionalStrong

$799.99list

Where to buy

Amazon

Apr 2026Receives post-launch software update addressing mapping edge cases

Full specifications18 figures on record · 15 differ

Figure

Qrevo MaxV

Deebot T50S Pro Omni

L40 Ultra Gen 2

List price

Qrevo MaxV$1,399.99

Deebot T50S Pro Omni$499.99

L40 Ultra Gen 2$799.99

Released

Qrevo MaxVApr 2024

Deebot T50S Pro OmniJan 2026

L40 Ultra Gen 2May 2026

Dock

Qrevo MaxVAuto-empty, mop washing, hot-water washing, drying, auto water refill

Deebot T50S Pro OmniAuto-empty, mop washing, hot-water washing, drying, auto water refill

L40 Ultra Gen 2Auto-empty, mop washing, drying, auto water refill

Onboard bin

Qrevo MaxV330 mL

Deebot T50S Pro Omni206 mL

L40 Ultra Gen 2250 mL

Water tank

Qrevo MaxV80 mL

Deebot T50S Pro Omni70 mL

L40 Ultra Gen 2Not on record

Dock dust bag

Qrevo MaxV2.7 L

Deebot T50S Pro Omni3 L

L40 Ultra Gen 23.2 L

Mop lift

Qrevo MaxV0.39 in

Deebot T50S Pro Omni0.35 in

L40 Ultra Gen 20.41 in

Weight

Qrevo MaxV9.9 lb

Deebot T50S Pro Omni11.5 lb

L40 Ultra Gen 28.58 lb

Runtime

Qrevo MaxV150 min

Deebot T50S Pro OmniNot on record

L40 Ultra Gen 2231 min

Charge time

Qrevo MaxV240 min

Deebot T50S Pro Omni240 min

L40 Ultra Gen 2210 min

Battery capacity

Qrevo MaxV75 Wh

Deebot T50S Pro OmniNot on record

L40 Ultra Gen 2Not on record

Suction

Qrevo MaxV7,000 Pa

Deebot T50S Pro Omni25,000 Pa

L40 Ultra Gen 225,000 Pa

Noise

Qrevo MaxV67 dB

Deebot T50S Pro Omni63 dB

L40 Ultra Gen 2Not on record

Navigation

Qrevo MaxVLiDAR SLAM (PreciSense) + RGB camera + structured light obstacle classification

Deebot T50S Pro OmnidToF LiDAR, 3D structured light and RGB cameras (AIVI 3D)

L40 Ultra Gen 2LiDAR mapping with obstacle avoidance; cliff sensors at drops and stair edges.

Connectivity

Qrevo MaxVWi-Fi, Alexa, Google Home

Deebot T50S Pro OmniWi-Fi, Alexa, Google Home

L40 Ultra Gen 2Wi-Fi, Bluetooth

Size

Qrevo MaxV13.8 × 13.8 × 4 in

Deebot T50S Pro Omni13.9 × 13.9 × 3.2 in

L40 Ultra Gen 213.4 × 13.8 × 3.82 in

The same on all three

Threshold climb

Qrevo MaxV0.8 in

Deebot T50S Pro Omni0.8 in

L40 Ultra Gen 20.8 in

Battery type

Qrevo MaxVLi-ion

Deebot T50S Pro OmniLi-ion

L40 Ultra Gen 2Li-ion

Add a robot206 more robot vacuums on record + Add a robot206 more robot vacuums on record

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

The record

What was claimed, and what testing saw

The Dreame L40 Ultra Gen 2 scored 30% in an independent obstacle test against a 66% average, after Dreame dropped its RGB camera. The Qrevo MaxV scored among the lowest a lab has recorded until a 2024 firmware update. No independent obstacle test was found for the T50S Pro Omni.

RoborockEcovacsDreame

Qrevo MaxV

Deebot T50S Pro Omni

L40 Ultra Gen 2

What the maker says it sees

From each maker's own US product page

Qrevo MaxV: 62object typesIn 20 categories. Smallest object about 2 in wide and 1.2 in tall, from the maker's own testing.Roborock US product page
Deebot T50S Pro Omni: No object countNames cords, shoes and pet messes. Gives no object count.Ecovacs US product page
L40 Ultra Gen 2: Not foundUS product page would not load in full when read, so no claim was captured. Searched the maker's blog and manual too.Dreame US product page

What it sees with

Sensors named on the page or in a hands-on report

Qrevo MaxV: Camera fittedStructured light and an RGB camera, in light or dim rooms.Roborock US product page
Deebot T50S Pro Omni: Camera fittedLiDAR, 3D structured light and AI RGB cameras, with a vision-language model.Ecovacs US product page
L40 Ultra Gen 2: No RGB camera3DAdapt structured light and LiDAR. The RGB camera of the first L40 Ultra was removed.Hands-on report, Oct 2026

The independent lab score

Obstacle test in a published review

Qrevo MaxV: Low, then improvedImproved by updateSame score as the older Qrevo, among the lowest seen. A 23 Aug 2024 firmware update improved it. No figure printed.Independent lab, updated Jun 2026
Deebot T50S Pro Omni: No test foundOnly the older T50 Pro Omni was reviewed. That is a different model, so none is used here.Searched hands-on reviews
L40 Ultra Gen 2: 30%obstacle scoreCategory average in that review: 66%. The review says the missing RGB camera clearly hurts here.Hands-on review, May 2026

Objects testers put in its path

Items placed deliberately

Qrevo MaxV: No placed-object test foundThe review names 62 object types but lists no cable, sock or pet-mess results.Independent lab, updated Jun 2026
Deebot T50S Pro Omni: No placed-object test foundSearched hands-on reviews
L40 Ultra Gen 2: Weak on carpetTested with cables and simulated pet waste. Avoidance on carpet was described as nearly nonexistent.Hands-on review, May 2026

Qrevo MaxV Roborock US product page · Independent lab, updated Jun 2026Deebot T50S Pro Omni Ecovacs US product page · Searched hands-on reviewsL40 Ultra Gen 2 Dreame US product page · Hands-on report, Oct 2026 · Hands-on review, May 2026

Same on all three: each uses structured light as one of its obstacle sensors.

At floor height in a hall nook, the Roborock Qrevo MaxV rolls off its tall white dock toward a small toy brick, a pale fan of light from its front sensor landing on the brick.

Your home

How each one fits a home like yours

Set the conditions that describe your home. Each robot answers from its own Fit Check; nothing is scored until you choose.

Fit check

Describe your home

Pick what applies. Each robot answers from its own record.

Home size

Primary floors

Upkeep you accept

Across what you setEach robot’s own Fit Check

Qrevo MaxVSet a condition

Deebot T50S Pro OmniSet a condition

L40 Ultra Gen 2Set a condition

Home sizeNot set

Qrevo MaxVNot set

Deebot T50S Pro OmniNot set

L40 Ultra Gen 2Not set

Primary floorsNot set

Qrevo MaxVNot set

Deebot T50S Pro OmniNot set

L40 Ultra Gen 2Not set

Upkeep you acceptNot set

Qrevo MaxVNot set

Deebot T50S Pro OmniNot set

L40 Ultra Gen 2Not set

Everything else

Where they land among 261 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.

HeightClearance it needs under furniture

Qrevo MaxV

4 in

Deebot T50S Pro Omni

3.2 in

L40 Ultra Gen 2

3.8 in

2.6typical 3.6–4 · median 3.87.8

WeightThe robot alone

Qrevo MaxV

9.9 lb

Deebot T50S Pro Omni

11.5 lb

L40 Ultra Gen 2

8.6 lb

3.6typical 7.5–10.4 · median 8.725

List priceThe maker's list

Qrevo MaxV

$1,400

Deebot T50S Pro Omni

$500

L40 Ultra Gen 2

$800

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

Sources

Where every figure comes from

Qrevo MaxV · Roborock US product page (read 2 Oct 2026); Vacuum Wars review, updated 10 Jun 2026
Deebot T50S Pro Omni · Ecovacs US product page (read 2 Oct 2026); no model-specific independent test found
L40 Ultra Gen 2 · Vacuum Wars (1 Oct 2026); Vacuum Chef review (17 May 2026); Dreame US page could not be read in full

Claims are quoted from each maker's US page as read on 2 Oct 2026. Independent results are used only when the review names the exact model.

Questions

What readers ask

Does the Qrevo MaxV's camera really recognize 62 object types?

Roborock’s page says it recognizes 62 types in 20 categories. A review noted the camera did not lift avoidance as expected at first, then found large gains after a 23 Aug 2024 firmware update.

Does a camera matter for obstacle avoidance?

In the one pairing here, the Dreame L40 Ultra Gen 2 dropped its RGB camera and scored 30% against a 66% category average in a review that said the missing camera clearly hurts.

Is there an independent obstacle test for the T50S Pro Omni?

None was found for this exact model. Reviews exist for the older T50 Pro Omni, but that is a different robot, so its results are not used.

Questions

What readers ask about this comparison.

Next up

Roborock Qrevo 2 Pro vs Narwal and Dreame: how do they differ?

Read the comparison

Comparison ID: RV–CMP–7708 · Last reviewed Jul 19, 2026 · Based on owner reports, manufacturer documentation, and firmware release notes

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