Robot Vacuums
Hands-off floor cleaning that suits the way your rooms are actually laid out.
A robot vacuum is the one smart home device that saves you real time every single week rather than just being convenient to control. That also makes it the easiest one to buy badly, because the specification sheet tells you almost nothing about whether it will cope with your floor plan.
The three things that decide whether you will still be using it in six months are navigation, the dock, and how much maintenance the machine demands from you.
Navigation decides everything else
LiDAR robots spin a laser turret on top and build a map of your home. They navigate in straight lines, they know which room they are in, and they let you tell the app to clean the kitchen and skip the bathroom. They also see in the dark. The cost is a raised turret that will not fit under very low furniture.
Camera-based navigation uses a front-facing camera to recognise obstacles and build a map. It is better at identifying a charging cable or a pet bowl than LiDAR is, because it is looking at what the object is rather than just how far away it is. It needs light to work well, which matters if you schedule cleaning overnight.
Bump-and-roll robots have neither. They drive until they hit something, turn, and carry on. They are cheaper and quieter, and on a single open-plan room they do a reasonable job by brute force. In a home with several rooms and a hallway, they will spend most of their battery re-covering the same patch.
If you have more than two rooms, buy mapping. It is the difference between a machine that cleans your home and a machine that wanders around it.
The dock is half the purchase
An auto-empty dock holds the dust bag for weeks, which is the feature that turns a robot vacuum into genuinely hands-off cleaning. Without one you are emptying a small bin every two or three days, and the chore you bought the robot to remove quietly comes back.
Higher tiers add a dock that also washes and dries the mop pad. That is real convenience, and it is also a machine you now have to maintain: water tanks to fill, dirty-water tanks to empty, and a base to clean monthly. Read the maintenance steps before you pay for the tier, not after.
Dock size is a physical constraint people forget. Measure the wall you plan to park it against, and check the clearance the dock needs to the side, because some models need several inches of approach room.
Mopping: what it actually does
Almost every robot vacuum now claims to mop. The implementations are not equivalent:
- Drag pad: a damp cloth trails behind the robot. It picks up dust and light surface marks. It does not scrub, and it smears a spill around.
- Vibrating pad: the pad oscillates several thousand times a minute. Noticeably better on dried-on marks, still not a mop.
- Rotating brushes: two spinning pads press down and scrub. This is the only type that meaningfully replaces mopping, and it is what the premium tiers use.
None of them handle a large spill, a sticky kitchen floor or dried pet mess. If you need that, you still own a mop. What a robot mop is genuinely good at is keeping a floor that is already reasonably clean at a consistent level without you thinking about it.
Where robot vacuums struggle in real homes
The marketing photography shows an empty living room. Real homes have more going on, and it is worth knowing what trips these machines up:
- Charging cables. The single most common cause of a stuck robot. Anything thinner than a shoe lace can be swallowed. Cable management is not optional.
- Dark or reflective floors. Some cliff sensors read a dark rug or a glossy dark tile as a drop and refuse to cross it. Test the first run in daylight so you can see what happened.
- Thick pile rugs and tassels. Tassels get chewed. High-pile rug edges can stall the brushes.
- Thresholds and floor transitions. Most robots climb a standard threshold; a raised lip of an inch or more will stop some models.
- Pet accidents. Only camera-based obstacle avoidance has a chance here, and it is not a guarantee. This is worth weighing honestly if you have an older pet.
- Multiple floors. A robot cannot carry itself upstairs. You either buy one per floor or carry it, and a carried robot needs the map for that floor already stored.
The maintenance nobody mentions
A robot vacuum moves the work rather than deleting it. Budget ten minutes a week:
- Empty or check the bin, and clear the filter.
- Cut hair off the main brush. Rubber brushes resist tangling; bristle brushes do not.
- Pull hair and debris out of the front caster wheel, which is what makes most robots start squeaking.
- Wipe the sensors and the camera lens, especially if the robot has started behaving oddly.
- Rinse and dry the mop pad, and clean the dock's water tanks if it has them.
Replace the filter every few months and the brushes when they stop gripping. A neglected robot vacuum cleans worse than a broom, and the decline is gradual enough that people rarely notice it happening.
Products mentioned in this guide
Products referenced in this guide, shown with the manufacturer's own photography. We do not publish prices or star ratings — both change faster than any article can be kept accurate.
Robot Vacuums
Roborock Q7 Max+
- Vacuums and mops in one pass, with a 4,200 Pa suction rating
- Auto-empty dock holds roughly seven weeks of debris
- LiDAR navigation with room-by-room mapping in the app
Works with
- Alexa
- Google Home
- Roborock app
Robot Vacuums
iRobot Roomba j7+
- Front-facing camera used for obstacle recognition and avoidance
- Self-emptying base included
- Learns a floor plan and lets you name rooms for targeted cleaning
Works with
- Alexa
- Google Home
- Apple Home (via Matter on newer firmware)
- iRobot Home app
Robot Vacuums
Wyze Robot Vacuum
- LiDAR mapping at a budget price point
- Room-by-room scheduling and no-go zones in the app
- Slim profile that clears most sofa skirts
Works with
- Alexa
- Google Home
- Wyze app
Robot Vacuums
Eufy RoboVac 11S
- Bump-and-roll navigation with no camera or LiDAR
- Very quiet for a robot vacuum
- Physically slim, so it fits under low furniture
Works with
- Remote control only
Frequently asked questions
Do robot vacuums work on carpet?
Yes, with caveats. They handle low-pile carpet and rugs well. Deep pile is harder: the robot rides higher, suction drops, and the brush can stall. Most models let you raise the brush and increase suction when they detect carpet, which helps. If your home is mostly thick carpet, a cordless stick vacuum will clean it faster and better.
How often should a robot vacuum run?
Daily on the main living areas is the setting most people settle on, and it is what keeps the floor consistently clean without any single run being a big job. Running it less often means each run has more to pick up, and the bin fills faster.
Will a robot vacuum scratch my floors?
Not from the wheels, which are soft. The risk is grit trapped in the brush or caught under the robot being dragged across a hard floor, so empty the bin and check the brush regularly. Felt pads under furniture legs will do more for your floors than any vacuum choice.
Do I need a robot vacuum if I already have a cordless stick vacuum?
They do different jobs. The robot handles the daily maintenance of a floor that is already tidy — the dust, hair and crumbs that accumulate constantly. The stick vacuum handles stairs, upholstery, the car, and the deep clean after a spill. Most people who own both use the stick far less than they expected, which is the point.