What you can expect from the eufy S1 Pro
What testers say about the eufy S1 Pro
The Eufy S1 Pro is Eufy's flagship for hard floors: a spinning roller mop with 2.2 pounds of downward pressure and an onboard dirty-water tank, an embedded lidar that keeps the robot under 3.9 inches, obstacle recognition with infrared stereo cameras and the tall UniClean station that empties the bin into a 65-day bag, washes the roller and dries it with hot air, refills water and mixes cleaning solution itself, with an ozone generator in the clean-water tank. Vacuum Wars bought one and calls it one of the best vacuum-mop combos for hard floors.
Dried coffee and juice stains came off better than with other models, and on large wet spills it was the best robot the site has ever tested, because the roller absorbs the liquid and drains it instead of smearing it. Obstacle recognition earned a rare perfect score, navigation was well above average at 410 square feet in three quarters of an hour, and the roller lifts 0.5 inches on carpet, more than average. The app is extensive, with virtual walls, multiple maps and adjustable obstacle-recognition sensitivity.
The criticism is on carpet: surface debris went fine, but in the deep-clean test it scored among the lowest the site has ever measured, even after repeated runs, and it got stuck on high-pile rugs, so the testers recommend no-mop zones for those. The station is tall, the app lacks mopping along the grain and settings for roller lifting, and the quoted 8,000 Pa of suction is modest. For a home with almost only hard floors and regular wet messes it is one of the strongest choices; with lots of carpet, look further.
Pros
- Mops wooden floors to a shine without leaving puddles or streaks TechRadar ↗
- App splits rooms neatly and makes per-room settings easy TechRadar ↗
- Hugs walls and furniture closely yet seldom crashes into anything TechRadar ↗
- Clears dried stains and big wet spills without streaking Vacuum Wars ↗
- Among the very best at recognizing and avoiding objects Vacuum Wars ↗
- Built-in laser sensor keeps it low enough for more furniture Vacuum Wars ↗
Cons
- Sometimes misses obvious debris and flicks crumbs into corners TechRadar ↗
- Hesitates at small room thresholds it crossed before TechRadar ↗
- Needs eufy’s own floor cleaner, which adds to running costs TechRadar ↗
- Weak at pulling embedded dirt out of carpet Vacuum Wars ↗
- Sometimes gets stuck on thick, high-pile rugs Vacuum Wars ↗
- App lacks some finer mop settings that rivals offer Vacuum Wars ↗
Where the testers disagree
- The app: TechRadar: App splits rooms neatly and makes per-room settings easy against Vacuum Wars: App lacks some finer mop settings that rivals offer
Each point sums up, in our words, the review of the test it names, and its link leads to that review. We do not summarize RTINGS or Wirecutter: their lists are linked above.





