Buying guide · 8 models

Robot Vacuums for Homes With Stairs: Safe Edges, Multi-Floor Maps and Step Climbers

Eight current models for a house with stairs: the ones that cross a raised step or threshold, the ones that keep a map for each floor, and what none of them can do.

By The RobotVacuumer team Updated

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A robot vacuum cleaning a hallway floor at the foot of a wooden staircase, a robot vacuum for stairs at home

No robot vacuum we found on sale on Amazon US on November 7 climbs a flight of stairs. Not one of the eight models below does it, and no maker's listing claims otherwise. What the best robot vacuums for stairs can do is three smaller things that matter just as much in a house with more than one level: stay off the edge, remember each floor, and get over the raised threshold or loose step that blocks a room.

So this guide is organized around those three jobs. First, which robots are built to avoid a drop. Second, which ones save a separate map for each floor and are light enough to carry up and down. Third, which ones state that they can cross a double-layer threshold or a single step, from 3.46 inches on the Roborock Saros 20 to 3.47 inches on the Dreame X60 Max Ultra Complete. Anything that goes beyond what the listings state, we say we cannot confirm.

If a stair-climbing robot in the news made you wonder whether one exists yet, this page is the plain version: what is real, what is only a claim, and what still needs a handheld vacuum in your hand.

The Picks at a Glance

Ranked for most homes. Tap a name for the full verdict.

  1. Roborock Saros 20, one of the robot vacuums for homes with stairs

    Best for raised thresholds

    Roborock Saros 20

    The listing states double-layer steps up to 3.46 inches.

    Premium

    Check price
  2. Dreame X60 Max Ultra Complete, one of the robot vacuums for homes with stairs

    Best for low steps

    Dreame X60 Max Ultra Complete

    Detects steps up to 3.47 inches and picks a strategy for each.

    Premium

    Check price
  3. Dreame L60 Pro Ultra, one of the robot vacuums for homes with stairs

    Best for single steps

    Dreame L60 Pro Ultra

    Retractable legs, and the only listing here that names a single-step height.

    Premium

    Check price
  4. Roborock Saros Z70, one of the robot vacuums for homes with stairs

    Best for multi-level homes

    Roborock Saros Z70

    Multi-level mapping in the app, plus an arm for loose items.

    Premium

    Check price
  5. Roborock Q10 S5+, one of the robot vacuums for homes with stairs

    Best multi-level on a budget

    Roborock Q10 S5+

    LiDAR with multi-level mapping at the mid-range tier.

    Mid-range

    Check price
  6. Dreame D20 Plus, one of the robot vacuums for homes with stairs

    Best for multi-floor and long dock life

    Dreame D20 Plus

    Editable maps, multi-floor, and a 5 L bag rated for 150 days.

    Mid-range

    Check price
  7. Lefant M2 Plus, one of the robot vacuums for homes with stairs

    Best cheap multi-floor robot

    Lefant M2 Plus

    Multi-floor mapping and a self-empty station at the budget tier.

    Budget

    Check price
  8. iRobot Roomba 105 Vac, one of the robot vacuums for homes with stairs

    Best simple robot with stair sensors

    iRobot Roomba 105 Vac

    The only listing here that says it has sensors against falling downstairs.

    Budget

    Check price

How We Choose

We do not run a test lab, and we will not pretend to. Every pick here was chosen by reading the maker's own listing for each current model and comparing the points that matter in a house with stairs. We report what the maker states and say so. Where a listing is silent, the table and the reviews say "not stated" rather than guess.

  • Edge safety

    Whether the listing mentions sensors that stop the robot at a drop.

  • Step and threshold claims

    The height the maker says the robot can cross, and whether it means a threshold or a single step.

  • Multi-floor maps

    Whether the app saves more than one level, so the robot does not relearn a floor each time.

  • The dock

    Self-emptying and washing, and the fact that one dock only serves one floor.

  • Price tier

    Budget, mid-range or premium. We never print a price: it changes daily.

  • Current model

    Every pick is a model sold today on Amazon US.

Checked on November 7, 2026. No brand paid to be on this page or saw it before publication. When you buy through our links we may earn a commission from Amazon; it never changes the order.

Can a Robot Vacuum Climb Stairs?

Short answer: not a staircase. The robots below can cross a raised threshold or, on one model, a single low step, and that is the whole of it. Here is how to read the claims, because the marketing around "step climbing" is easy to misunderstand.

What Is on Sale Today

Every robot vacuum on this page is a current model sold on Amazon US as of November 7. We searched the listings for a model that climbs a full flight of stairs and found none. Concept machines with legs get shown at trade fairs and written up in the news, but a concept is not something you can order, so we do not recommend one. If a maker ships a real stair climber, we will add it here with the claim attributed and the limits stated.

Step and Threshold Claims

What you can buy are robots with a lifting chassis, and the listings use two different words for what it crosses. A threshold is the raised strip between rooms, often two layers, such as a door sill on top of a floor transition. A step is a single rise.

Roborock says the Saros 20 crosses double-layer steps up to 3.46 inches. Dreame says the X60 Max Ultra Complete detects steps up to 3.47 inches and uses a strategy for them, and that the L60 Pro Ultra's retractable legs cross double-layer thresholds up to 3.47 inches and single steps up to 1.77 inches (4.5 cm). The Saros Z70 is rated for thresholds up to 4 cm. These are the makers' figures, not ours, and a figure for a threshold is not a promise about the stairs in your hall. For the longer look at one of these claims, read the section on obstacle crossing in our Dreame robot vacuum reviews.

What Still Needs a Handheld

The stairs themselves. A robot cannot clean the treads, the risers or the landing, so a house with a staircase still needs a cordless stick or a small handheld for that part. The honest plan is a robot for the floors and a handheld for the stairs, and a robot that does the floors well is worth having for exactly that reason.

Robot Vacuums for Homes With Stairs, Compared

The table puts the eight side by side on what matters with stairs. Suction is each maker's own rating in pascals (Pa), useful inside one brand and much less across brands. "Not stated" means the listing does not say.

Robot
Roborock Saros 20 Best step claim
Dreame X60 Max Ultra Complete
Dreame L60 Pro Ultra
Roborock Saros Z70
Roborock Q10 S5+
Dreame D20 Plus
Lefant M2 Plus
iRobot Roomba 105 Vac
Robot Roborock Saros 20 black robot vacuum for stairs and double-layer thresholds Dreame X60 Max Ultra Complete black robot vacuum that detects steps up to 3.47 inches Dreame L60 Pro Ultra black robot vacuum with retractable legs for stairs and steps Roborock Saros Z70 black robot vacuum with multi-level mapping for homes with stairs Roborock Q10 S5+ white robot vacuum with multi-level mapping for a house with stairs Dreame D20 Plus black robot vacuum with multi-floor maps for stairs Lefant M2 Plus black budget robot vacuum with multi-floor mapping for stairs iRobot Roomba 105 Vac black robot vacuum with stair-fall sensors
Best for Raised thresholds, camera avoidance Steps up to 3.47 in Thresholds and single steps Multi-level homes, premium Multi-level on a budget Multi-floor, long dock life Cheapest multi-floor Simple, with stair sensors
Step claim Double-layer steps up to 3.46 in Detects steps up to 3.47 in Thresholds 3.47 in, single steps 1.77 in Thresholds up to 4 cm Not stated Not stated Not stated Not stated
Multi-floor maps Not stated Not stated Not stated ✅ Multi-level mapping ✅ Multi-level mapping ✅ Multi-floor ✅ Multi-floor mapping Not stated
Edge sensing Not stated Not stated Not stated Not stated Not stated Not stated Not stated ✅ Sensors against falling down stairs
Navigation 3D ToF and RGB camera Dual AI cameras Liftable LiDAR StarSight 3D LiDAR, structured light LDS mapping LiDAR ClearView LiDAR
Dock Empties, washes, dries Empties, washes, dries Empties, washes, dries Empties, washes, dries Empties Empties Empties Charges only
Suction 36,000 Pa 35,000 Pa 35,000 Pa 22,000 Pa 10,000 Pa 13,000 Pa 6,000 Pa Not stated in Pa
Price tier $$$ Premium $$$ Premium $$$ Premium $$$ Premium $$ Mid-range $$ Mid-range $ Budget $ Budget
Buy Check price on Amazon Check price on Amazon Check price on Amazon Check price on Amazon Check price on Amazon Check price on Amazon Check price on Amazon Check price on Amazon

Best step claim

Roborock Saros 20

Best for
Raised thresholds, camera avoidance
Show specifications
Step claim
Double-layer steps up to 3.46 in
Multi-floor maps
Not stated
Edge sensing
Not stated
Navigation
3D ToF and RGB camera
Dock
Empties, washes, dries
Suction
36,000 Pa
Price tier
$$$ Premium
Check price on Amazon

Dreame X60 Max Ultra Complete

Best for
Steps up to 3.47 in
Show specifications
Step claim
Detects steps up to 3.47 in
Multi-floor maps
Not stated
Edge sensing
Not stated
Navigation
Dual AI cameras
Dock
Empties, washes, dries
Suction
35,000 Pa
Price tier
$$$ Premium
Check price on Amazon

Dreame L60 Pro Ultra

Best for
Thresholds and single steps
Show specifications
Step claim
Thresholds 3.47 in, single steps 1.77 in
Multi-floor maps
Not stated
Edge sensing
Not stated
Navigation
Liftable LiDAR
Dock
Empties, washes, dries
Suction
35,000 Pa
Price tier
$$$ Premium
Check price on Amazon

Roborock Saros Z70

Best for
Multi-level homes, premium
Show specifications
Step claim
Thresholds up to 4 cm
Multi-floor maps
✅ Multi-level mapping
Edge sensing
Not stated
Navigation
StarSight 3D
Dock
Empties, washes, dries
Suction
22,000 Pa
Price tier
$$$ Premium
Check price on Amazon

Roborock Q10 S5+

Best for
Multi-level on a budget
Show specifications
Step claim
Not stated
Multi-floor maps
✅ Multi-level mapping
Edge sensing
Not stated
Navigation
LiDAR, structured light
Dock
Empties
Suction
10,000 Pa
Price tier
$$ Mid-range
Check price on Amazon

Dreame D20 Plus

Best for
Multi-floor, long dock life
Show specifications
Step claim
Not stated
Multi-floor maps
✅ Multi-floor
Edge sensing
Not stated
Navigation
LDS mapping
Dock
Empties
Suction
13,000 Pa
Price tier
$$ Mid-range
Check price on Amazon

Lefant M2 Plus

Best for
Cheapest multi-floor
Show specifications
Step claim
Not stated
Multi-floor maps
✅ Multi-floor mapping
Edge sensing
Not stated
Navigation
LiDAR
Dock
Empties
Suction
6,000 Pa
Price tier
$ Budget
Check price on Amazon

iRobot Roomba 105 Vac

Best for
Simple, with stair sensors
Show specifications
Step claim
Not stated
Multi-floor maps
Not stated
Edge sensing
✅ Sensors against falling down stairs
Navigation
ClearView LiDAR
Dock
Charges only
Suction
Not stated in Pa
Price tier
$ Budget
Check price on Amazon

The Picks, Reviewed

Each review opens with the verdict, then who should buy it and who should not. Read the first four for step and threshold claims, the next three for multi-floor homes, and the last one if you only want a simple robot with stair sensors.

Roborock Saros 20 black robot vacuum for stairs and raised thresholds, with its dock

Top pick · Best for raised thresholds

Roborock Saros 20

The pick when the obstacle is a raised sill or a double-layer step between rooms. Roborock states 3.46 inches, a camera that recognizes over 300 obstacles, and a body only 3.13 inches tall.

  • Premium
  • Step claim Double-layer steps up to 3.46 in
  • Navigation 3D ToF and RGB camera
  • Dock Empties, washes, dries
  • Suction 36,000 Pa

Check price on Amazon

Buy it if
Your house has raised thresholds, a sunken living room step or a mix of hard floors and carpet up to 1.18 inches deep.
Skip it if
You want the staircase itself cleaned, or a camera-equipped robot is a privacy problem for you.

Roborock calls the lifting chassis AdaptiLift 3.0. The listing says it raises the body to cross thresholds and uneven floors without losing suction, handles double-layer steps up to 3.46 inches and cleans carpets up to 1.18 inches deep. For a house where a robot gets stuck at the same sill every time, that is the number to look at. The same listing says the robot fits under furniture as low as 3.13 inches.

Navigation uses 3D time-of-flight sensors and an RGB camera, with recognition of more than 300 obstacles. The dock washes the mop with 212°F water, dries it with 131°F air and empties the bin for up to 65 days. The listing does not say whether the app keeps a map per floor, so check that before you plan to move it between levels. It does not mention edge sensors either.

What stands out

  • Double-layer steps up to 3.46 in, per Roborock
  • 3.13 in clearance under furniture
  • Dock empties for up to 65 days and washes with 212°F water
  • Camera recognizes over 300 obstacles

Trade-offs

  • Multi-floor mapping and edge sensing are not stated in the listing
  • Large dock needs floor space on each level you use it
  • Built-in camera will not suit every household
Dreame X60 Max Ultra Complete black robot vacuum for stairs, detecting steps up to 3.47 inches

Best for low steps

Dreame X60 Max Ultra Complete

The most detailed step claim here. Dreame says the robot detects steps up to 3.47 inches (8.8 cm) and adopts a strategy for them, with dual AI cameras and a dock rated for 100 days.

  • Premium
  • Step claim Detects steps up to 3.47 in
  • Navigation Dual AI cameras
  • Dock Empties, washes, dries
  • Suction 35,000 Pa

Check price on Amazon

Buy it if
You have a few raised steps between rooms and you want a robot that is low enough for the sofa and long on dock life.
Skip it if
You want a published multi-floor map feature; the listing does not state one.

The wording is careful and worth reading closely. Dreame says the X60 Max Ultra Complete "intelligently detects steps up to 3.47in" and "utilizes optimal strategies for safe and smooth navigation". That describes detection and a plan for the step, and the listing title talks about obstacle crossing for carpet. It does not describe a flight of stairs, and it does not promise a tread-by-tread climb.

The rest of the case is a strong all-rounder: a 3.13 inch body, 35,000 Pa suction, dual AI cameras with proactive lighting, and a 10-in-1 dock that washes the mop at 212°F, dries it and disposes of dust for up to 100 days. Wi-Fi is 2.4 GHz only. Multi-floor mapping and edge sensors are not stated.

What stands out

  • Detects steps up to 3.47 in, per Dreame
  • 3.13 in tall, reaches under sofas and beds
  • Dock rated for up to 100 days of dust
  • Three-year warranty stated in the listing

Trade-offs

  • Multi-floor mapping not stated
  • Wi-Fi 2.4 GHz only
  • Full dock to place and maintain
Dreame L60 Pro Ultra black robot vacuum with retractable legs for stairs, thresholds and single steps

Best for single steps

Dreame L60 Pro Ultra

The only robot on the list whose maker gives a separate figure for a single step: 1.77 inches (4.5 cm), next to 3.47 inches for double-layer thresholds. It is also the one that is closest to the idea of a step climber, within those limits.

  • Premium
  • Navigation Liftable LiDAR
  • Dock Empties, washes, dries
  • Suction 35,000 Pa

Check price on Amazon

Buy it if
The obstacle in your house is a single raised step or a door sill, and you want the maker's figure for it.
Skip it if
You are hoping it will go up a flight of stairs; 1.77 inches is a low single step, not a stair tread.

Dreame calls it ProLeap. The listing says retractable legs let the L60 Pro Ultra cross double-layer thresholds up to 3.47 inches and single steps up to 1.77 inches, so it can move between rooms without getting stuck. A normal stair riser is far taller than that, so do not read it as stair climbing. What the figure does tell you is that a step in a doorway, or the lip into a sunroom, is within its stated range.

A VersaLift LiDAR lowers the robot to 3.50 inches to fit under furniture, and the listing says it recognizes more than 280 object types. Suction is up to 35,000 Pa, and the dock empties, washes and dries the mop pads. It lifts the mop pads 0.41 inches on carpet. Wi-Fi is 2.4 GHz only, and the listing does not mention multi-floor maps or edge sensors.

What stands out

  • Single steps up to 1.77 in and thresholds up to 3.47 in, per Dreame
  • LiDAR lowers to 3.50 in for furniture
  • Self-emptying, mop-washing and drying dock
  • Mop lifts 0.41 in on carpet

Trade-offs

  • A single step of 1.77 in is not a stair
  • Multi-floor mapping and edge sensing not stated
  • Wi-Fi 2.4 GHz only
Roborock Saros Z70 black robot vacuum with multi-level mapping and a robotic arm for a house with stairs

Best for multi-level homes

Roborock Saros Z70

The premium pick for a house with more than one floor. The Roborock app includes multi-level mapping and no-go zones, thresholds up to 4 cm are stated, and a five-axis arm can move light items.

  • Premium
  • Step claim Thresholds up to 4 cm
  • Multi-floor maps Multi-level mapping
  • Navigation StarSight 3D
  • Dock Empties, washes, dries

Check price on Amazon

Buy it if
You carry a robot between floors and want the app to remember each one, with a robot that tidies slippers and socks out of its path.
Skip it if
A mechanical arm and cameras are more than you need, or the premium tier is out of range.

The listing is explicit that the app "includes multi-level mapping, no-go zones, and smart suggestions". That is the feature that matters in a two-storey house: once the maps are saved, you can set the robot down on the upstairs landing and start a run without remapping. Roborock also lists thresholds up to 4 cm, 22,000 Pa suction and a 3.14 inch profile despite the arm.

The OmniGrip arm moves obstacles and lifts objects up to 300 g, and Roborock notes it can pick up light items such as slippers. The dock washes the mop with 176°F water, dries it with warm air and empties dust for up to 7 weeks. The dock stays on one floor, so on the other levels the bin has to be emptied by hand. Wi-Fi is 2.4 GHz only.

What stands out

  • Multi-level mapping stated in the app description
  • Thresholds up to 4 cm
  • Arm moves light objects up to 300 g out of the way
  • Dock empties for up to 7 weeks

Trade-offs

  • The OmniGrip arm is more than most homes need
  • Edge sensing is not stated
  • Wi-Fi 2.4 GHz only
Roborock Q10 S5+ white robot vacuum with multi-level mapping, a robot vacuum for stairs and two floors

Best multi-level on a budget

Roborock Q10 S5+

The sensible choice for a two-floor house when you do not need a step claim. The listing states multi-level mapping on its LiDAR system, a self-emptying station rated for 70 days and a mop that lifts for carpet.

  • Mid-range
  • Multi-floor maps Multi-level mapping
  • Navigation LiDAR, structured light
  • Dock Empties
  • Suction 10,000 Pa

Check price on Amazon

Buy it if
You have two or three floors, mostly flat, and want the robot to keep a map for each without paying premium money.
Skip it if
Your floors have raised thresholds; the listing states no threshold height.

Roborock describes PreciSense LiDAR that scans 360 degrees and "supports multi-level mapping for efficient navigation across different floors". That one line is the reason it is here. Suction is rated at 10,000 Pa, and structured light handles obstacles ahead of the robot.

The 2.7 L dust bag is rated for up to 70 days, and the VibraRise 2.0 mop scrubs up to 3,000 times a minute and lifts 8 mm on carpets. The listing states no threshold or step height, so keep it for floors without a raised sill. Wi-Fi is 2.4 GHz only, and edge sensors are not mentioned.

What stands out

  • Multi-level mapping on a LiDAR system
  • Self-emptying station rated for 70 days
  • Mop lifts 8 mm on carpet
  • Mid-range tier

Trade-offs

  • No threshold or step height stated
  • Edge sensing not stated
  • Wi-Fi 2.4 GHz only
Dreame D20 Plus black robot vacuum with editable multi-floor maps for a house with stairs

Best for multi-floor and long dock life

Dreame D20 Plus

A multi-floor robot with the longest dock life in this guide. The 5 L bag is rated for up to 150 days, which suits a household where the dock lives on one floor and the bin rarely needs attention.

  • Mid-range
  • Multi-floor maps Multi-floor
  • Navigation LDS mapping
  • Dock Empties
  • Suction 13,000 Pa

Check price on Amazon

Buy it if
You want multi-floor maps, little emptying and a mid-range price.
Skip it if
You need a step claim, or a mop that lifts and washes itself.

Dreame says the D20 Plus builds editable, precise maps with Pathfinder and sums up the multi-floor feature in a few words: no-go zones, multi-floor. That is all the listing says, so how many floors it stores is not stated. The auto-empty dock takes a 5 L dust bag that Dreame rates for up to 150 days.

Suction is 13,000 Pa with a DuoBrush that is described as anti-tangle. It vacuums and mops, with 32 water levels and a 350 ml water tank. The mop is not washed by the dock in the listing. Wi-Fi is 2.4 GHz only. Step and threshold height are not stated.

What stands out

  • Multi-floor mapping with editable maps
  • 5 L bag rated for up to 150 days
  • 32 water levels
  • Mid-range tier

Trade-offs

  • Step and threshold height not stated
  • Number of saved floors not stated
  • Wi-Fi 2.4 GHz only
Lefant M2 Plus black budget robot vacuum with multi-floor mapping for stairs and two storeys

Best cheap multi-floor robot

Lefant M2 Plus

The least expensive way to a robot that maps more than one floor. The listing states multi-floor mapping, no-go zones, LiDAR and a self-emptying station rated for 75 days.

  • Budget
  • Multi-floor maps Multi-floor mapping
  • Navigation LiDAR
  • Dock Empties
  • Suction 6,000 Pa

Check price on Amazon

Buy it if
You have a two-storey home on a budget and mainly want daily vacuuming on each floor.
Skip it if
You have deep carpet or want strong suction; it is rated at 6,000 Pa.

Lefant is a smaller brand than Roborock or Dreame, which is the trade for the price tier. The listing gives a 360 degree LiDAR system that maps the home, avoids obstacles and cleans in neat rows, multi-floor mapping, no-go zones, and a bag-compatible station with two 2.5 L bags that the maker says gives up to 75 days of hands-free cleaning. The runtime is stated as 140 minutes.

It also mops, with a 300 ml water tank, and it detects carpet. Suction is 6,000 Pa. Unlike most of the group it connects on both 2.4 GHz and 5 GHz. A step or threshold height is not stated, and neither are edge sensors, so treat it as a robot for flat floors.

What stands out

  • Multi-floor mapping at the budget tier
  • Self-emptying station rated for up to 75 days
  • Dual-band Wi-Fi (2.4 GHz and 5 GHz)
  • 140 minutes of stated runtime

Trade-offs

  • 6,000 Pa is the lowest suction here
  • Step and threshold height not stated
  • Edge sensing not stated
iRobot Roomba 105 Vac black robot vacuum, a simple robot vacuum for stairs with sensors against falling

Best simple robot with stair sensors

iRobot Roomba 105 Vac

The one listing that states the stair safety directly: iRobot says specialized sensors prevent falling down stairs. It is a plain, budget vacuum with LiDAR mapping and neat rows, and a dock that only charges.

  • Budget
  • Navigation ClearView LiDAR
  • Dock Charges only
  • Suction Not stated in Pa

Check price on Amazon

Buy it if
You want a robot that stays off the stairs, on a budget, and you are happy to empty a small bin.
Skip it if
You want a mop, a self-emptying dock or any multi-floor map claim; the listing states none.

iRobot writes that ClearView LiDAR maps your home "while specialized sensors prevent falling down stairs". Most other listings here say nothing on the subject, which is not the same as the robots lacking it. Stair safety is an expected feature, but iRobot is the maker that wrote it down.

The Roomba Home app lets you schedule rooms, set keep-out zones and pick passes and suction. The listing gives its weight as 6.15 pounds, the lightest of these listings, though makers may weigh the package differently, so check before you rely on it for carrying. Multi-floor maps are not stated, and the dock only charges.

What stands out

  • Sensors against falling down stairs, per iRobot
  • LiDAR mapping with keep-out zones
  • Recharges and resumes the clean
  • Budget tier

Trade-offs

  • No mop and no self-emptying dock
  • Multi-floor mapping not stated
  • Suction not stated in pascals

How Cliff Sensors Keep a Robot Off the Stairs

A robot vacuum falls down stairs only when its edge sensors fail or are fooled. Those sensors point down from the underside, and when the floor drops away they tell the robot to stop and turn. The reason the Roomba 105 Vac stands out in the table is not that the others lack them. It is that the other listings do not mention them, so the question "does Roborock detect stairs?" has no answer in the Roborock listings we read. Look for the sensor in the manual or the maker's support page before you buy.

Two habits matter more than any model. Do not start a run with the robot on the top step, and put the robot on a floor with the stairs mapped as a no-go zone or fenced by a virtual wall when the app allows it. A map of the floor plan, as on the LiDAR robots in the table, makes that setup easier.

Dark Rugs and False Cliffs

Edge sensors work by sensing the floor, and a very dark rug can look like a drop to a downward-facing sensor, so some robots stop at a black mat or refuse to cross it. None of the eight listings addresses this, so it is not stated for any model here. If you have a black runner at the top of the stairs or a dark mat in the hall, plan to put a no-go zone around it in the app, or switch to a lighter rug. For the carpet side of the question, see our guide to the best robot vacuums for carpets.

Multi-Floor Maps: One Robot, Several Floors

For most people with stairs, the real question is not climbing. It is whether one robot can clean upstairs and downstairs without a new setup each time. The answer is yes if the app saves more than one map, and four of the eight listings say it does: the Saros Z70 (multi-level mapping), the Q10 S5+ (multi-level mapping), the D20 Plus (multi-floor) and the Lefant M2 Plus (multi-floor mapping). The other four may do it too, but their listings do not say so, so we cannot confirm it.

The workflow is the same everywhere. You carry the robot to the other floor, start it from the app on the right map, and carry it back to the dock afterwards. The dock stays put, so the bin on the other floor has to be emptied by hand, and a long dock rating such as the 150 days on the D20 Plus matters less than it sounds when half the cleaning happens away from the dock.

Weight is the other half of this. A listing's weight often includes a large dock, so it is not the weight of the robot, and none of the eight states the robot's own weight separately. The Roomba 105 Vac is the plain, light option and a robot with a dock that only charges. For a household where somebody has to carry the robot up the stairs every day, ask the maker the robot's weight alone before you decide. If you want a guide to which robots map best on one floor, start with our best robot vacuums with LiDAR and our Roborock Saros comparison. The overall best robot vacuums page covers the wider field.

Robot Vacuum for Stairs FAQ

The Roborock listings we read for the Saros 20, Saros Z70 and Q10 S5+ do not mention edge sensors, so we cannot confirm it from them. Robot vacuums in general use downward sensors to stop at a drop. Check the manual for your model, and block the top step with a no-go zone.
Probably not, but no robot vacuum can be guaranteed. Robots stop at an edge using cliff sensors, which can be fooled by dirt, dark rugs or a blocked sensor. We have not read a Shark listing for this page, so check your model's manual, keep the sensors clean and fence off the stairs.
Keep the cliff sensors clean, never start a run on the top step, and fence the stairs. Use a no-go zone or virtual wall in the app, or a physical gate. A mapped floor plan helps, and so does picking a robot whose maker states stair sensors, such as the Roomba 105 Vac.
Yes, a low one. The Dreame L60 Pro Ultra lists single steps up to 1.77 inches and thresholds up to 3.47 inches, and the Roborock Saros 20 lists double-layer steps up to 3.46 inches. Those are makers' figures for doorway steps. None of them climbs a flight of stairs.

Sources

  1. Manufacturer product listings for all eight models, Amazon US, read on November 7, 2026 Every specification and claim on this page is the maker's stated figure from its listing.

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