Robot Vacuum That Climbs Stairs: What You Can Actually Buy in 2026

Short answer: no robot vacuum you can order today cleans a staircase. The robot vacuum that climbs stairs most people have seen in videos, Roborock's Saros Rover, is still a prototype with no price and no release date. What you can buy are robots that climb thresholds, with a lift of about 3.5 inches. That helps on rugs, door tracks and raised transitions. It does not help on a 7-inch step.

If you have a two-story house, this guide tells you what works now, what is still a demo, and the cheaper way to get both floors clean. It is a researched buying guide built from manufacturer pages, not a home test.

Quick comparison

Our picks, one by one

What Is a Demo and What Ships

The honest split looks like this.

• Still a demo: Roborock Saros Rover. Roborock's newsroom describes it as a wheel-leg robot that cleans each step, including curved and carpeted stairs, and calls it a product in development. It was a prototype at CES in January 2026 and again at IFA in September, and Roborock could not confirm a release date or price. Plan as if it does not exist until it has a price and a ship date.
• Announced, unconfirmed: Eufy's MarsWalker. Coverage describes a shell that carries a compatible robot between floors, and an Eufy guide says the Omni S2 itself cannot climb a flight. We found no source confirming the MarsWalker shipped in the US, so we do not list it as a buy.
• Shipping now: threshold climbers such as the Saros 20, Dreame X60 Max Ultra Complete and Qrevo Curv. They cross lips and rugs, not steps.

Our Math: How Much of a Stair Can They Climb

Marketing says climbing. Math says otherwise. The IRC allows a maximum residential riser of 7 3/4 inches. We compared each robot's published lift to that.

Formula: share of riser = lift in inches / 7.75. Qrevo Curv lift converted at 2.54 cm per inch. Double-layer ratings assume the lower step is wide enough; Dreame says the top surface of the lower step must be more than 23 cm wide.

Takeaway: even the best threshold climber clears less than half of a code-maximum step, so none can climb your stairs. Your stairs are the one place you have to carry the robot.

How We Chose

This is desk research. We kept only robots that appear in current Amazon.com listings and that the maker documents with a published lift. We compared lift, suction, battery, weight, height and warranty from Roborock's and Dreame's own product pages, and we excluded prototypes and concepts from the buy list. We did not rank on cleaning performance, because we have no controlled tests to base it on.

The Two-Floor Plan That Works Today

If your house has two floors, you have three real options.

1. Carry one robot. Pick the lightest robot you can live with. The Qrevo Curv robot weighs 8.6 lbs. Carry the robot only; the dock stays downstairs. Run one floor a day.
2. Buy a robot per floor. Two docks means no carrying and no daily routine. This is the best answer if the stairs are your pain point.
3. Use a cordless stick vacuum for stairs. Stairs are a hand job for now, and a stick vacuum with a handheld mode does them faster than any robot could.

Whichever route you take, the map matters. Robots store a map per floor, so check that the app supports multi-floor maps before you buy.

Carry Math: What You Lift Up the Stairs

If you pick the carry-one-robot plan, the weight you lift matters more than the lift height. Here is what each option asks of your arms, using the makers' published weights.

Formula: robot weight + dock weight = total to move. We lift the robot alone for a floor swap, and the whole set only if you relocate the dock.

Carrying the robot alone is 8.6 to 10.36 lbs, about the weight of a full gallon jug of water plus a bit. Doable once a day, annoying every day. If you hate the idea, that is your cue to buy a second robot rather than a flagship for one floor.

What Failure Looks Like on a Threshold

Spec sheets tell you what a robot can cross in ideal conditions. In real houses, the problem is usually the combination. A door track that is 1.5 inches high but has a thick rug pile on one side, or a lip with a narrow lower step, is harder than the number suggests. Dreame says so directly: the 3.47-inch rating applies to a double-layer step where the top surface of the lower step is wider than 23 cm, and actual performance varies with the shape, material and placement.

Before you buy, measure the worst transition in your house and write down three numbers: the height of the first lip, the height of the second lip, and the width of the flat between them. If the first lip is above 4 cm and the flat is narrow, none of these robots is a safe bet. Put a small ramp or threshold strip in place instead of spending more on the robot.

What Would Change Our Advice

Three things would make a stair-climbing vacuum a real buy. First, a published price and a US ship date, which Roborock has not given for the Saros Rover. Second, a stated step height and stair-width limit, because a wheel-leg robot that tops out at a shallow riser is no good in a house with steep stairs. Third, a statement about edge protection: how the robot avoids falling backward down a flight. None of those exist yet.

Until they do, treat every stair-climbing clip as a demo. We will update this page when a stair-cleaning robot has a price, a ship date and a spec sheet that includes its limits. If you need clean stairs now, a handheld or stick vacuum does the job in minutes.

Who Should NOT Buy a Robot for Stairs

Skip this category if your main goal is cleaning the stairs themselves. No product does that today. Skip it if you have steep, open-riser or spiral stairs, where even a future stair-climbing robot would have trouble. And skip the premium threshold climbers if your floors are mostly hard flooring with flat transitions, since a lower-cost robot handles those fine.

Also think about safety. A robot on a stair edge can fall onto someone below, and a robot left on a landing is a trip hazard. If you have a toddler or an elderly relative who uses the stairs, keep robots off the stairs and landings.

Cleaning the Stairs Themselves Today

Stairs are a handheld job for now. A cordless stick vacuum that converts to a handheld, or a small handheld vacuum, takes a few minutes per flight and gets the nosing and corners a robot would miss. Work top to bottom so dust falls toward the floor you will vacuum last.

If the real reason you want a stair-climbing robot is dust that migrates between floors, you have a cheaper fix. Run the downstairs robot after the upstairs is done, and keep a mat at the top and bottom of the flight. The point of this guide is to save you from paying flagship prices for a feature that is not shipping.

• Hardwood or tile stairs: a damp microfiber mop head on a short handle works better than any robot mop pad.
• Carpeted stairs: a handheld with a motorized brush head pulls out grit that sits in the weave.
• Open-riser stairs: go slowly with the handheld, and keep pets and kids away from the flight while you work.

What to Check Before Buying a Threshold Climber

• Measure your biggest threshold. The ratings are for double-layer steps with a wide lower step. A narrow transition may beat a robot that the spec says should cross it.
• Measure your furniture clearance. Robot heights range from 3.13 to 4.1 inches in these listings.
• Check rug pile. Roborock states the Saros 20 adapts to carpets up to 1.18 inches.
• Check warranty. Roborock lists a 1-year limited warranty on its US page; Dreame lists 3 years.

Frequently asked questions

Price classes are a rough guide; check the current price on Amazon. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.