“Stair-climbing robot vacuum” is suddenly everywhere in tech headlines, thanks to a wave of CES and IFA 2026 announcements. But there’s a gap between what’s being demoed on a conference stage and what you can actually put in your cart today. This guide sorts the two apart: which stair-climbing and high-threshold robot vacuums are real, shipping products in late 2026, what they actually do, and what’s still a prototype with no price tag.
Quick Answer: No robot vacuum that climbs a full flight of stairs on its own is available to buy yet. Roborock’s Saros Rover — the wheel-leg robot that balances like a Segway and climbs real staircases — was shown at CES 2026 as a working prototype, with no price or release date announced. Eufy’s MarsWalker stair-climbing module for the RoboVac Omni S2 was announced for “first half of 2026,” and a similarly priced Omni S2 + Accessory Kit bundle is now listed on eufy.com, though eufy has not clearly confirmed that kit is the MarsWalker. What you can buy right now are high-threshold robots like the MOVA Z60 Ultra Roller Complete and Dreame X60 Ultra, which lift themselves over door thresholds and small obstacles up to about 3 inches — genuinely useful for multi-room homes, but not stair climbers.
Why “Stair-Climbing Robot Vacuum” Is Trending Right Now
The surge in search interest traces back to a specific run of announcements. At CES 2026, Roborock unveiled the Saros Rover, which it demonstrated climbing real staircases using two wheels mounted on extendable legs — the robot balances on the pair like a Segway, leans forward, and effectively walks itself up each step. CNET named it a Best of CES honoree and called it “the most futuristic robot vacuum” the outlet had seen. Around the same period, Eufy showed off the MarsWalker, a separate robotic “shell” that docks with the RoboVac Omni S2, grips the unit with four independently controlled arms, and rolls it up straight, L-shaped, or U-shaped staircases on drive-track treads.
Neither of those is a vacuum you order and unbox this week. What’s actually shipping is a related but different category: robots that can forcefully lift themselves over tall thresholds, small rugs, and low obstacles — not staircases, but the kind of transitions that have historically stopped a robot vacuum cold between rooms.
True Stair-Climbers: What’s Real vs. Still a Prototype
Roborock Saros Rover — demoed, not yet for sale
The Saros Rover’s party trick is its chassis: instead of Roborock’s usual circular disc, it has a flatter, more rectangular body with two wheels on extendable legs. Those legs let it lift itself up and over a stair tread, balance briefly, and repeat the motion going up (or down) a full staircase, and the company has also shown it making small hops over obstacles. As of this writing, Roborock has described it as a demonstration unit — there is no confirmed price and no release date. If you’re specifically waiting for this model, the realistic move is to watch Roborock’s own announcements rather than shopping for it now.
Video: Roborock Saros Rover stair-climbing demonstration at CES 2026 (via Vacuum Wars).
Eufy MarsWalker + RoboVac Omni S2 — announced, rolling out
Eufy’s approach keeps the vacuum itself conventional (the RoboVac Omni S2, a 30,000 Pa suction vacuum-and-mop combo) and adds a separate accessory that does the climbing. The Omni S2 backs into the MarsWalker module the same way it backs into a normal charging dock; the MarsWalker’s arms then grip it and its treads carry the whole unit up or down a staircase, using a 3D map of the home to time the trip. Eufy originally targeted a “first half of 2026” launch for the MarsWalker. The Omni S2 itself is available now (around $1,599 at launch) — check current price on Amazon — and eufy.com separately lists an “Omni S2 + Accessory Kit” bundle near $1,680, but eufy’s product page doesn’t clearly specify that the included accessory is the MarsWalker rather than a smaller add-on, so confirm exactly what’s in the box with eufy support before buying specifically for stair-climbing. Roborock owners curious how the Rover compares to Roborock’s last flagship arm-equipped robot can also see our Saros Z70 OmniGrip review.
What You Can Actually Buy Today: High-Threshold Robots
If you don’t want to wait on unreleased hardware, the realistic, shippable alternative is a robot built to clear tall thresholds and small obstacles — not stairs, but the everyday chokepoints (raised door sills, thick rug edges, low furniture legs) that strand most robot vacuums.
MOVA Z60 Ultra Roller Complete
MOVA’s StepMaster 2.0 system uses small powered legs to lift the robot over single thresholds up to 45mm and two-tier thresholds up to 80mm (a little over 3 inches) — independent reviewers have called it one of the highest threshold-clearance figures on the market. It also carries 28,000 Pa of suction, a self-cleaning roller mop with 12 wash nozzles, and carpet detection that lifts the mop and drops a moisture shield automatically. It typically sells for $679–$799. Check current price on Amazon.
Dreame X60 Ultra
Dreame’s flagship takes a different approach: rather than legs, it uses a chassis-lift mechanism to physically raise itself over obstacles up to about 8.8cm (roughly 3.5 inches) — enough to clear a baby gate bar or a thick door threshold. It pairs that with 35,000 Pa suction and dual AI cameras for obstacle recognition. It’s priced higher, typically in the $1,300–$1,400 range. Check current price on Amazon. For more on this model’s full feature set, see our complete Dreame X60 Max Ultra review.
| Model | Can it climb real stairs? | Obstacle/threshold clearance | Suction | Status |
|---|---|---|---|---|
| Roborock Saros Rover | Yes (demoed) | Full staircases | Not disclosed | Prototype — no price or release date |
| Eufy RoboVac Omni S2 + MarsWalker | Yes (module-assisted) | Full staircases | 30,000 Pa | Omni S2 shipping now (~$1,599); MarsWalker rollout in progress, confirm with eufy before buying for this purpose |
| MOVA Z60 Ultra Roller Complete | No | Up to 80mm thresholds | 28,000 Pa | Shipping now, ~$679–$799 |
| Dreame X60 Ultra | No | Up to ~8.8cm obstacles | 35,000 Pa | Shipping now, ~$1,300–$1,400 |
So Should You Wait or Buy Now?
Wait if: you specifically want a single robot that cleans every floor of a multi-story home unattended, including the stairs themselves. Nothing that does this today is a simple, confirmed-price purchase — you’d be buying into early-adopter territory (the MarsWalker rollout) or waiting on a prototype (Saros Rover) with no committed date.
Buy now if: your actual problem is thresholds, not stairs — a sunken living room, high door sills between a kitchen and hallway, a thick rug edge that keeps stranding your current robot. Either the MOVA Z60 Ultra Roller Complete or the Dreame X60 Ultra solves that today, at a fraction of the cost and risk of the stair-climbing category.
The practical workaround most multi-level households already use: rather than one robot carrying itself between floors, run a separate, more affordable robot vacuum on each level and empty/charge each independently. Our Top 20 Best Robot Vacuums guide and quick buying guide cover solid, inexpensive options for exactly this setup.
Frequently Asked Questions
Is there a robot vacuum that can actually climb stairs right now?
Not as a simple, priced, ship-today product. Roborock’s Saros Rover has demonstrated real staircase climbing, but it remains a prototype with no announced price or release date. Eufy’s MarsWalker module is further along — announced for “first half of 2026” — but isn’t confirmed as a clean, standalone purchase yet.
What’s the difference between threshold climbing and stair climbing?
Threshold climbing means lifting the robot over a single raised lip — a door sill, a thick rug edge, a low obstacle — typically under 3-4 inches tall. Stair climbing means navigating an entire staircase, tread by tread, in sequence. Robots like the MOVA Z60 Ultra and Dreame X60 Ultra do the former; only the Saros Rover and MarsWalker-equipped Omni S2 do the latter.
How much will a true stair-climbing robot vacuum cost?
No confirmed retail price exists yet for the Saros Rover. The Eufy RoboVac Omni S2 alone launched around $1,599, and an “Omni S2 + Accessory Kit” bundle is listed near $1,680 on eufy.com — but it’s worth confirming directly with eufy whether that kit is the stair-climbing MarsWalker before buying for that reason specifically.
Can my current robot vacuum be upgraded to climb stairs?
Only in the case of eufy’s ecosystem: the MarsWalker is designed specifically to pair with the RoboVac Omni S2, not with other robots or other eufy models. There’s no universal stair-climbing attachment compatible with vacuums from other brands.
Are stair-climbing robot vacuums safe around pets and kids?
Manufacturers have emphasized obstacle detection and 3D mapping in their stair-climbing demos, but since these are new, pre-wide-release mechanisms, there isn’t yet a large base of independent long-term safety testing or owner reports to point to. If safety around stairs is a top concern, it’s reasonable to wait for broader independent reviews before buying.
Bottom Line
The “robot vacuum that climbs your stairs” moment is close, but it isn’t quite here. If your home’s real obstacle is a tall threshold rather than a full staircase, the MOVA Z60 Ultra Roller Complete or Dreame X60 Ultra will solve that problem today. If you genuinely need stair-to-stair autonomy, the honest answer is to keep an eye on Roborock’s and eufy’s official announcement pages rather than buying into the category yet — and in the meantime, running an affordable robot per floor remains the proven, lower-risk way to keep a multi-level home clean.
Looking to buy a high-threshold or mop-and-vacuum robot without overpaying? See our roundup of robot vacuum Black Friday 2026 deals for current pricing on the MOVA Z60 Ultra, Dreame X60 Max Ultra, and other models covered here.
