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What robot vacuums know about your house

A robot vacuum builds a floor plan of your home and, on many models, carries a camera. Whether that matters is your call — it should be an informed one.

By Scooter M.Published
A padlock fastened on a wooden door

Disclosure — some links on this page go to Amazon, and we earn a commission if you buy through them. It costs you nothing extra and it does not change what we recommend or in what order. The full disclosure.

Every mapped robot vacuum builds a floor plan of your home and stores it in the manufacturer's cloud so the app can display it. Camera-based models also capture images to navigate or to recognize obstacles. Models that map with LiDAR or dToF and have no camera collect no images at all.

This question comes up constantly and gets answered badly in both directions — either dismissed as paranoia or inflated into surveillance. The accurate version is more boring and more useful, and it differs sharply depending on which navigation hardware you buy.

What is definitely collected

  • A floor plan of your home. Room shapes, sizes, doorways, and the positions of large furniture. This is not incidental — it is the product. The app cannot show you a map without one existing.
  • Where that plan lives. On mapped models it is stored in the manufacturer's cloud so the app can render it from anywhere. That is what makes it a privacy question rather than a device question.
  • Usage data. When it runs, how long, which rooms, error events. Standard connected-device telemetry.
  • Camera images, on camera-based models. A vSLAM robot navigates by camera and cannot work without one. Many LiDAR robots add a camera purely for obstacle recognition.

What differs by navigation type

Navigation hardware by model — the thing that decides whether a camera is involved

23 of 23 models publish this figure. Every number below links to the page it came from.

ModelNavigation systemCondition and source
Roborock Qrevo CurvRoborockPreciSense LiDARSource: Roborock Qrevo Curv product page — navigation (retrieved 2026-09-01)
Roborock Qrevo CurvXRoborockRetractSense LiDAR with Reactive AI obstacle recognitionRoborock states the turret retracts in tight spaces and that the system recognizes 108 object types.Source: Roborock Qrevo Curv Series page — navigation (retrieved 2026-09-01)
Roborock Saros 10RRoborockStarSight Autonomous System 2.0Solid-state sensing rather than a raised LiDAR turret, which is what allows the low body.Source: Roborock Saros 10R product page — navigation (retrieved 2026-09-01)
Roborock Qrevo Curv S5XRoborockReactive Tech obstacle avoidanceSource: Roborock Qrevo Curv S5X navigation — manufacturer listing on Amazon.com (retrieved 2026-09-01)
Roborock Qrevo MasterRoborockObstacle avoidance, system not named on the listingSource: Roborock Qrevo Master navigation — manufacturer listing on Amazon.com (retrieved 2026-09-01)
Roborock Qrevo SRoborockSmart obstacle avoidance, system not named on the listingSource: Roborock Qrevo S navigation — manufacturer listing on Amazon.com (retrieved 2026-09-01)
Roborock Qrevo ProRoborockIntelligent dirt detection with obstacle avoidanceSource: Roborock Qrevo Pro features — manufacturer listing on Amazon.com (retrieved 2026-09-01)
Roborock Qrevo (QV 35A)RoborockSmart obstacle avoidance, system not named on the listingSource: Roborock Qrevo QV 35A navigation — manufacturer listing on Amazon.com (retrieved 2026-09-01)
Roborock Q7 M5Roborock360-degree LiDAR with multi-level mappingSource: Roborock Q7 M5 product page — navigation (retrieved 2026-09-01)
Dreame X50 UltraDreameVersaLift DToF with 360-degree scanning and 3D structured lightSource: Dreame X50 Ultra product page — navigation (retrieved 2026-09-01)
Dreame L40s UltraDreameNot named on the listingThe listing describes app and voice control but does not name the mapping system.Source: Dreame L40s Ultra features — manufacturer listing on Amazon.com (retrieved 2026-09-01)
Dreame X40 UltraDreameAI navigation, system not named on the listingSource: Dreame X40 Ultra navigation — manufacturer listing on Amazon.com (retrieved 2026-09-01)
Dreame L40 UltraDreameNot named on the listingSource: Dreame L40 Ultra features — manufacturer listing on Amazon.com (retrieved 2026-09-01)
Dreame L10s UltraDreameAI navigation, system not named on the listingSource: Dreame L10s Ultra navigation — manufacturer listing on Amazon.com (retrieved 2026-09-01)
eufy X10 Pro OmnieufyiPath Laser Navigation with AI.Map 2.0Source: eufy X10 Pro Omni product page — navigation (retrieved 2026-09-01)
eufy 11S MAXeufyNo mapping — bump-and-turn cleaning pattern, self-chargingThe listing describes it as super thin, quiet and self-charging with no app or mapping features named.Source: eufy 11S MAX listing description — manufacturer listing on Amazon.com (retrieved 2026-09-01)
ECOVACS DEEBOT X8 PRO OMNIECOVACSdToF with AIVI 3D 3.0 and a TruEdge 3D edge sensorSource: ECOVACS DEEBOT X8 PRO OMNI product page — navigation (retrieved 2026-09-01)
ECOVACS DEEBOT T30S ComboECOVACSNot named on the listingSource: ECOVACS DEEBOT T30S Combo features — manufacturer listing on Amazon.com (retrieved 2026-09-01)
iRobot Roomba Combo j9+iRobotPrecisionVision Navigation on iRobot OSSource: iRobot Roomba Combo j9+ product page — navigation (retrieved 2026-09-01)
iRobot Roomba j9+iRobotPrecisionVision obstacle avoidance with smart mappingSource: iRobot Roomba j9+ navigation — manufacturer listing on Amazon.com (retrieved 2026-09-01)
iRobot Roomba Max 705 VaciRobotLiDAR navigation with obstacle and anti-fall detectionSource: iRobot Roomba Max 705 navigation — manufacturer listing on Amazon.com (retrieved 2026-09-01)
Shark PowerDetect 2-in-1 (AV2800ZE)Shark360-degree LiDAR with a 3D sensorSource: Shark PowerDetect 2-in-1 navigation — manufacturer listing on Amazon.com (retrieved 2026-09-01)
Shark Matrix Plus 2-in-1 (RV2610WA)Shark360-degree LiDAR mapping with Matrix Clean grid patternSource: Shark Matrix Plus 2-in-1 navigation — manufacturer listing on Amazon.com (retrieved 2026-09-01)

Compiled from the manufacturers’ own published material on 2026-09-01. We have not measured any of these figures ourselves — see how we pick. Found an error? Tell us and we will correct it.

A LiDAR or dToF robot maps by measuring distance, not by taking pictures. If such a model has no separate obstacle camera, it collects no images of your home at all. A vSLAM model cannot navigate without its camera, so there is no setting that removes the images. Many flagships sit in between: LiDAR or dToF for mapping, plus a camera for obstacle recognition that can usually be disabled at the cost of the avoidance feature. The technical comparison is on LiDAR versus vSLAM.

What we cannot tell you

We have not audited any manufacturer's data handling, we have no access to their servers, and we are not going to characterize any company's practices on the basis of news coverage. What we can tell you is what hardware each model carries, because that is published — and hardware determines what is possible in a way that a policy document does not.

If the question matters to you, read the privacy policy of the specific brand before buying rather than after. That is not a satisfying answer and it is the accurate one.

Practical steps if you buy a connected model

  1. Check what the app asks for at setup. Some request permissions unrelated to cleaning. Decline those and see whether anything actually breaks.
  2. Turn off obstacle-recognition camera features if you do not need them. On most LiDAR models this is a setting, and it costs you avoidance rather than mapping.
  3. Put it on a guest network if your router supports one, so the device cannot see the rest of your home network.
  4. Delete the map and the account when you sell or dispose of the robot. A factory reset on the device does not necessarily remove the map from the cloud.
  5. Look for a physical camera shutter or an indicator. Some models have one; most do not.

Quick picks

Ranked on the published specifications below. Tap a row to jump to the full write-up.

#ProductBest forSuctionPrice
1
eufy 11S MAXNo app, no map, no cloud — a bump-and-turn robot that is thin enough to get under furniture the mapped machines cannot reach.
A thin, cheap, offline robotNot published
2
Roborock Q7 M5Proper 360-degree LiDAR mapping and an anti-tangle main brush at a price where a lot of robots still bounce off the walls.
Real LiDAR mapping at the low end10,000 Pa
3
Roborock Qrevo CurvPublishes both a standard-threshold and a double-layer threshold figure, which is the number most sill-blocked buyers are actually shopping for.
Tall or double-layer door sills18,500 Pa

Every figure in this table is linked to the page it came from in the write-ups below. We have not tested any of these machines.

Top pick

eufy 11S MAX

A thin, cheap, offline robot

No app, no map, no cloud — a bump-and-turn robot that is thin enough to get under furniture the mapped machines cannot reach.

Published specifications

Stated suction
Not publishedNo Pa figure stated on the listing.
Max climb height
Not publishedNot stated on the listing.
Mop lift
Not publishedThis model does not mop.
Main brush
Not publishedBrush construction is not described on the listing.
Navigation
No mapping — bump-and-turn cleaning pattern, self-chargingThe listing describes it as super thin, quiet and self-charging with no app or mapping features named.Source: eufy 11S MAX listing description — manufacturer listing on Amazon.com (retrieved 2026-09-01)
Dock
Charging dock only, no self-emptyingSource: eufy 11S MAX dock — manufacturer listing on Amazon.com (retrieved 2026-09-01)

What it does well

  • Cleans hard floors through to medium-pile carpet, per eufy's own listing
  • No Wi-Fi requirement, which settles the privacy question outright
  • Thin body reaches under low furniture

What it does not

  • No mapping, so no room selection, no no-go zones, no resume-after-charge routing
  • eufy publishes no climb height, suction figure or runtime on this listing

Who it is for

A small apartment, a second floor, or anyone who does not want a networked camera-equipped device in the house at all.

Skip it if

You have more than a couple of rooms. Without mapping it cleans by random pattern and will miss areas on any given run.

Check price on Amazon

#ad how we are funded · no live price right now, so we show none

Full eufy 11S MAX write-up

Pick 2

Roborock Q7 M5

Real LiDAR mapping at the low end

Proper 360-degree LiDAR mapping and an anti-tangle main brush at a price where a lot of robots still bounce off the walls.

Published specifications

Stated suction
10,000 PaRoborock states this for Max+ mode.Source: Roborock Q7 M5 product page — "10,000 Pa HyperForce Suction" (retrieved 2026-09-01)
Max climb height
Not publishedNot stated on the Roborock product page.
Mop lift
Not publishedNot stated on the Roborock product page.
Main brush
JawScrapers Comb anti-tangle main brushRoborock pairs it with an anti-tangle side brush as a Dual Anti-Tangle System.Source: Roborock Q7 M5 product page — brush (retrieved 2026-09-01)
Navigation
360-degree LiDAR with multi-level mappingSource: Roborock Q7 M5 product page — navigation (retrieved 2026-09-01)
Stated runtime
Not publishedNot stated on the Roborock product page.
Dock
Self-emptying dock, stated at seven to nine weeksSource: Roborock Q7 M5 self-empty interval — manufacturer listing on Amazon.com (retrieved 2026-09-01)

What it does well

  • 360-degree LiDAR at entry-level money, so it maps rooms instead of guessing
  • JawScrapers Comb anti-tangle main brush
  • Multi-level mapping for a two-story house

What it does not

  • No published climb height and no published mop lift
  • Mopping is three water-flow levels and a pad, not a washing dock

Who it is for

A first mapped robot for a normal house — several rooms, some rugs, a pet.

Skip it if

You want serious mopping. This drags a pad; it does not wash or lift one properly.

Check price on Amazon

#ad how we are funded · no live price right now, so we show none

Full Roborock Q7 M5 write-up

Pick 3

Roborock Qrevo Curv

Tall or double-layer door sills

Publishes both a standard-threshold and a double-layer threshold figure, which is the number most sill-blocked buyers are actually shopping for.

Published specifications

Stated suction
18,500 PaStated as peak suction, not sustained.Source: Roborock Qrevo Curv product page — "Industry Leading 18500 Pa HyperForce" (retrieved 2026-09-01)
Max climb height
40mm (1.6in) double-layer, 30mm (1.2in) standardRoborock's own wording is that it can overcome standard thresholds up to 3cm and navigate double-layer thresholds up to 4cm. Stated maxima assume a clean square edge; a rounded or worn sill behaves differently.Source: Roborock Qrevo Curv product page — threshold crossing (retrieved 2026-09-01)
Mop lift
17mmSource: Roborock Qrevo Curv, "17mm Mop Lift" — manufacturer listing on Amazon.com (retrieved 2026-09-01)
Main brush
DuoDivide dual rubber-bristle main brushRoborock describes it as two parallel short bristle rollers with spiral blades.Source: Roborock Qrevo Curv product page — DuoDivide main brush (retrieved 2026-09-01)
Navigation
PreciSense LiDARSource: Roborock Qrevo Curv product page — navigation (retrieved 2026-09-01)
Stated runtime
Not publishedNot stated on the Roborock product page.
Dustbin
Not publishedNot stated on the Roborock product page.
Body height
104mm (4.1in)Listed dimensions 13.9 x 13.7 x 4.1in.Source: Roborock Qrevo Curv product page — dimensions (retrieved 2026-09-01)
Dock
Hot-water mop washing with dock self-cleaningSource: Roborock Qrevo Curv dock features — manufacturer listing on Amazon.com (retrieved 2026-09-01)

What it does well

  • Roborock publishes a standard-threshold figure and a double-layer figure separately, which almost nobody else does
  • 17mm of mop lift is enough to keep a wet pad off medium-pile carpet
  • Anti-tangle design on the main brush and the side brush, not just one of them

What it does not

  • The 40mm headline is a double-layer threshold, not a single 40mm step — read the condition, not the headline
  • 104mm (4.1in) tall, so it will not fit under a low sofa or a kickboard gap

Who it is for

Older houses with real door sills, and anyone whose current robot announces itself stuck in the same doorway every day.

Skip it if

Your floors are flat and open. You would be paying a premium for chassis hardware your home never asks for.

Check price on Amazon

#ad how we are funded · no live price right now, so we show none

Full Roborock Qrevo Curv write-up

Questions people actually ask

+ Do robot vacuums spy on you?

Every mapped model builds a floor plan of your home and stores it in the maker's cloud, and camera-based models capture images to navigate. Whether that constitutes spying is your judgment; what is certain is that a map of your home exists on someone else's server.

+ Do robot vacuums have cameras?

Many do. vSLAM navigation is camera-based by definition, and many LiDAR models add a camera for obstacle recognition. LiDAR and dToF models without a separate obstacle camera collect no images at all.

+ Do robot vacuums need wifi?

Mapped models effectively do — the map, the schedule and the no-go zones live in the app. Bump-and-turn models like the eufy 11S MAX do not connect at all, which removes the question rather than answering it.

+ Can I use a robot vacuum without the app?

On most mapped models you can start a basic clean from a button on the robot, but you lose room selection, no-go zones and scheduling — which is most of what you paid for. On an unconnected model there is no app to miss.

+ Which robot vacuum is best for privacy?

One with no connectivity, if you can live without mapping. Otherwise, a model that maps with LiDAR or dToF and has no obstacle camera, or one whose camera features can be disabled. Hardware is a firmer guarantee than a policy.

Sources