Eufy’s S1 Pro is the company’s most ambitious robot vacuum ever – and it is also its most polarizing. It abandons the spinning mop pads everyone else uses for a HydroJet system: a full-width roller that scrubs like a real floor washer, with clean and dirty water kept in separate compartments so it never drags dirty water across the floor. It is a genuinely different architecture, and Chinese owner communities are split down the middle on it: a loyal camp calls it the best mopping robot ever built, a vocal camp returned it. This article aggregates specs and owner feedback; we do not claim hands-on testing.
The short version: the S1 Pro is the best mopping robot on the market and the most unusual flagship of 2025-2026 – brilliant for mopping-first homes, frustrating for anyone who expects the usual ecosystem or the usual price.
Across Chinese owner communities
On Xiaohongshu and 什么值得买, the S1 Pro debate is one of the most active of any flagship. The pro camp’s words: “拖地最强” (the strongest mop) and “真三电机” (true three-motor) – the roller scrubs stains that spinning pads smear, and the dirty-water compartment means the mop never redeposits dirt. The con camp’s words: “修不起” (can’t afford the repairs) and “生态封闭” (closed ecosystem) – the roller assembly is a wear part that is expensive to replace, consumables cost more than the spinning-pad norm, and the station is large. The verdict that survives both camps: it is the best mop you can buy, and it is a niche flagship, not a default recommendation.
What stands out
- HydroJet roller mop: a full-width roller that scrubs, with separate clean and dirty water tanks – the cleanest mopping performance in the class.
- Eco-Clean Ozone: the station generates ozone to sanitize the water and the mop roller – genuinely different hygiene tech.
- Auto mop washing and drying: the station washes and dries the roller after every run, so it is ready and odor-free next time.
- Strong suction and obstacle avoidance: a solid flagship vacuum on top of the mopping story, with camera+LiDAR navigation.
The honest catch
The S1 Pro’s downsides are structural, not incidental. First, the roller is a wear part: it needs periodic replacement, it costs more than spinning mop pads, and some owners report the replacement cycle arrives sooner than expected – the community’s “修不起” complaint is real. Second, the ecosystem is closed: eufy’s app is clean, but the S1 Pro does not fit the “one robot for everything” pattern some owners expect from the X-series, and consumables are brand-specific. Third, the station is large and the price started high – at $1,499 launch it sat above every mainstream flagship, and its value only works at event pricing. None of these change the mopping result; they change whether it is the right flagship for you.
Typical street price
The S1 Pro launched at $1,499 and has settled to a street price of $1,099-1,199, with Prime-event lows around $899-949 and regular dips to $999 in China’s open market. After Prime Big Deal Days closed, the price has begun drifting back toward $1,099 – the next real opportunity is Black Friday week, where eufy flagships historically return to their event floors.
Bottom line
Buy the eufy S1 Pro if mopping performance is your #1 priority and you are comfortable with a closed ecosystem and higher consumable costs – it is the best mop on the market, and Chinese owner feedback confirms both the praise and the price of that crown. Skip it if you want a conventional flagship with cheap consumables and an open ecosystem – the X10 Pro Omni covers that profile at a fraction of the price. And after PBD, the buying advice is simple: if you want the S1 Pro, wait for Black Friday week rather than paying the current drift-back price.
Sources
- eufy official S1 Pro product page and documentation
- PCMag – Eufy S1 Pro Robo-Mop Cleans Itself As It Works
- eufy blog – Robot vacuum and mop guidance
- Owner community threads: 什么值得买 / Xiaohongshu / JD.com discussions