Yes—but not in the way the headline suggests. Eufy demonstrated MarsWalker, a separate robotic carrier that transports a compatible robot vacuum between floors. The vacuum does not climb the stairs itself, and MarsWalker does not clean the stair treads.
The device was shown at IFA 2025. Eufy reportedly targeted a first-half-2026 release, but the available evidence does not confirm normal retail availability, a final price, or a complete compatibility list as of August 18, 2026.
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What MarsWalker actually is
MarsWalker is a stair-climbing robotic platform, not a robot vacuum with legs or tracks. The closest everyday comparison is a small autonomous stairlift: a compatible Eufy robovac drives into the carrier, which then lifts and carries it to another floor.
That distinction matters. The system is intended to solve the problem of moving a floor-cleaning robot between levels—not the separate problem of vacuuming the stairs themselves.
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Eufy’s normal RoboVacs use drop sensors to avoid falling and cannot clean stairs. Its guidance for the S1 and S1 Pro likewise says that multi-floor maps do not allow those robots to navigate stairs independently; the owner must move the robot manually. Eufy Support and Eufy’s multi-floor guidance describe that limitation.
How the stair-climbing carrier works
Coverage of the IFA demonstration described four independently controlled arms or supports, rubberized tracks and a carrier body that holds the vacuum securely. Its reported operating sequence is:
- The robot vacuum navigates into MarsWalker.
- The carrier secures or encloses the vacuum.
- Its arms and tracked mechanisms reposition the platform onto successive steps.
- MarsWalker climbs or descends the staircase.
- It reaches the destination landing or floor.
- The vacuum drives out and resumes its cleaning routine.
Vacuum Wars reported that the demonstration included straight, L-shaped and U-shaped staircases. That is evidence of a demonstrated capability, not a guarantee that every staircase with one of those layouts will be compatible.
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Which Eufy vacuum does it support?
The strongest reporting links MarsWalker to Eufy’s Omni S2. However, no final compatibility list was established in the available evidence.
It remains unclear whether support is limited to one Omni S2 version, extends to an S2 Pro or other variants, or includes older models such as the S1 Pro, X10 Pro Omni, E25 or E28. Compatibility could depend on the vacuum’s dimensions, weight, firmware, charging behaviour or docking hardware. There is also no verified indication that third-party robot vacuums can use the carrier.
Existing Eufy owners should therefore not assume that buying MarsWalker—or finding one for sale—would make their current robot compatible. Eufy would need to publish the supported model numbers and any firmware or installation requirements.
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Is MarsWalker available to buy?
Retail availability is unconfirmed in the evidence reviewed. Eufy demonstrated MarsWalker at IFA 2025, and contemporaneous reporting said the company was aiming for a first-half-2026 release. But no verified official product page, checkout listing, price or final specification sheet was established by August 18, 2026.
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That does not prove the project was cancelled. It means readers should distinguish between an announced target and a product that can be purchased with published specifications, warranty terms and a return policy. A confirmed launch would require an official Eufy sales page or launch announcement identifying the price, shipping region, supported vacuums and staircase requirements.
What problem would it solve?
For a multi-storey home, MarsWalker could automate the most inconvenient part of robot-vacuum ownership: transporting one machine between floors. Today, owners generally choose among four imperfect options:
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- Carry one robot vacuum upstairs or downstairs.
- Buy a separate robot vacuum for each floor.
- Use multi-floor mapping but still move the robot manually.
- Use a conventional vacuum for stairs and a robot vacuum for the floors.
MarsWalker’s proposed benefit is therefore multi-floor automation. It is not whole-home automation in the broadest sense unless the final system can reliably coordinate floor maps, docking, charging and recovery after transport.
What it does not solve
- It does not vacuum stair treads, risers or handrail areas.
- It may work only with a limited range of Eufy models.
- It adds another motor system, battery, dock and software layer.
- It may require clear landing space at both ends of the staircase.
- It may not suit narrow, steep, spiral, open-riser or irregular stairs.
- Transport could take longer than carrying the vacuum by hand.
- A failure could strand or damage an expensive robot vacuum.
- A show-floor demonstration does not establish long-term household reliability.
Could it work on your staircase?
Before treating MarsWalker as a construction solution, a homeowner would need detailed limits from Eufy. Important requirements include:
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- Minimum staircase width and required turning radius.
- Whether the system supports closed risers only.
- Performance on carpet, timber, tile, metal, glossy or wet surfaces.
- Landing dimensions for 90-degree and 180-degree turns.
- Whether curved or spiral staircases are excluded.
- How it detects people, pets, toys, cables and other obstacles.
- How the carrier locks the vacuum in place.
- What happens after a traction loss, obstruction or power failure.
- How a user manually recovers a carrier stopped mid-staircase.
- Whether it can align with the destination floor and return to a dock.
The reported ability to handle straight, L-shaped and U-shaped stairs should not be read as universal approval for those configurations. Real homes introduce clutter, carpet edges, uneven construction, pets and changing conditions that a controlled demonstration may not represent.
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Eufy’s support material says the S1 has anti-drop sensors that can detect drops of at least 11.5 cm. Those sensors are designed to prevent a robot from falling; they are not stair-climbing hardware and do not make an ordinary robovac suitable for climbing steps. Eufy Support explains the limitation.
MarsWalker versus the practical alternatives
| Option | Best suited to | Main trade-off |
|---|---|---|
| Carry one robot manually | Smaller homes or occasional upstairs cleaning | Lowest complexity, but no automation between floors |
| One robot per floor | Homes needing frequent autonomous cleaning on both levels | Higher equipment cost, but predictable operation |
| MarsWalker | Owners seeking automated transport on a compatible staircase | Availability, price, compatibility and reliability remain unresolved |
| Conventional vacuum for stairs | Homes where the stair treads themselves need cleaning | Requires manual cleaning, but addresses the actual stairs |
A second robot vacuum may remain the more predictable purchase if both floors need regular cleaning and the staircase is narrow, steep, open-riser or difficult to keep clear. The historical U.S. MSRP of Eufy’s Omni S1 Pro was $1,499.99, although Eufy later stated that the S1 Pro was no longer available on eufy.com in the United States as of April 2026. That figure should not be treated as a price for MarsWalker or as a current offer. See the S1 Pro product page and Eufy’s discontinuation notice.
Questions a final product launch must answer
Before buying, look for published answers to these practical questions:
- Which exact robot-vacuum models are supported?
- What are the maximum riser, tread, width and slope specifications?
- Are open risers, spiral stairs, landings and carpet supported?
- Can the carrier operate if Wi-Fi or app connectivity fails?
- What is the emergency-stop and manual-recovery procedure?
- What happens if the vacuum battery is too low to complete the trip?
- Can the vacuum exit onto an unmapped floor and find its dock?
- Are replacement tracks, arms and batteries available?
- Does the warranty cover a transported vacuum or a staircase incident?
- What are the carrier’s dimensions, weight, noise level and storage requirements?
Other stair-climbing concepts
Dreame and MOVA also demonstrated stair-climbing robot-vacuum concepts at IFA 2025. Their mechanisms reportedly differed, including carrier-style and lift-style approaches. Like MarsWalker, those demonstrations should not be treated as evidence of a product available for purchase without confirmed retail listings and specifications. Vacuum Wars’ IFA coverage discusses the competing concepts.
Verdict
Eufy did build and publicly demonstrate a convincing answer to the robot-vacuum stair problem—but the answer is a separate carrier, not a robovac that cleans or climbs stairs on its own.
MarsWalker is promising for multi-floor homes, especially if it eventually supports common stair layouts and a useful range of Eufy vacuums. It is not yet a normal buy-now recommendation on the available evidence. Until Eufy confirms retail availability, pricing, compatibility, staircase limits, safety behaviour and warranty coverage, homeowners should treat it as a demonstrated product concept and compare it with manually moving one vacuum, buying one per floor or using a conventional vacuum for the stairs.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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