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eufy S1 Pro

Not sold at any store we monitor today, so not in our ranking.

Customer rating ★ 2.9 from 796 reviews at Amazon

Where it leads robots with an all-in-one stationAll 34 facts →
  • 277 minRuntime per chargelonger than 58 of 64
  • 0.5 inMop lift on carpethigher than 40 of 61
  • 3.8 inRobot heightlower than 40 of 62

Which robot is right for your home? Find out in 7 questions →

eufy S1 Pro
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.

What the tests like and dislike about the eufy S1 Pro

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

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.

eufy S1 Pro specifications

The numbers that matter first, then every fact by group. As published by the maker or the store we read it from.

eufy · on the market since June 2024

Robot height3.8 in
Climbs thresholds up to0.8 in
Mop lift on carpet0.5 in
Runtime per charge277 min
Suction power8,000 Pa

Consumables: a 2.5 l dust bag in the station.

Dimensionsrobot and dock

Dock, from the front 26.4 in high 18.4 in deep 26.4 in 15.1 in wide Robot, from the side 13.7 in across 3.8 in

From the published dimensions. The robot passes under furniture with 3.8 in of clearance or more. The dock needs a spot 15.1 in wide and 18.4 in deep.

Suction and brushes 3 facts
Suction power

Suction in pascal, as the maker measures it. More pascal helps on carpet, but it says little about how well the robot picks grit off a hard floor.

8,000 Pa
Anti-tangle brush

A brush that guides hair to the side instead of letting it wind around the shaft. It saves the cutting work in homes with long hair or pets.

yes
Extending side brush

The side brush swings out in a corner or along a baseboard, so the dust there is swept in too. On this model: the maker names this feature nowhere on the product page, so we take it as no.

no
Mopping 6 facts
Mop type

How the mop is built: flat pads, two spinning discs or a roller. Discs press harder on dried-on dirt, a roller rinses itself while it works.

roller mop
Mop lift on carpet

How far the robot lifts the mop when it drives onto a carpet. From about 0.4 in (10 mm) a medium pile stays dry.

0.5 in (12 mm)
Mop extends to the edges

The pad slides out along a wall or a baseboard, so the last few inches are mopped as well.

no
Automatic mop detach

The robot leaves the mop at the dock before it vacuums a carpet, so the carpet never gets wet. On this model: the maker names this feature nowhere on the product page, so we take it as no.

no
Mop refreshed while mopping

The robot returns to the dock during a run to rinse the mop, instead of pushing dirty water around.

yes
Water tank in the robot

How much clean water the robot carries. It sets how long it mops before a refill, which a dock does by itself.

240 ml
Dock 11 facts
Empties the dust bin

The dock empties the robot’s dust bin, usually after every run. You only empty the dock’s bag or bin.

yes
Bagless

The dock collects dust in a bin instead of a disposable bag. No bags to buy, but you empty it yourself. On this model: the maker names this feature nowhere on the product page, so we take it as no.

no
Dust bag capacity

How much the dust bag in the dock holds.

2.5 l
Washes the mop

The dock washes the mop for you, so you do not rinse it by hand.

yes
Dries the mop

The dock dries the mop afterwards, so it does not sit there wet and start to smell.

yes
Hot-air drying

Drying is done with warm air instead of cold. It is faster and it helps against smell.

yes
Dispenses detergent

The dock mixes detergent into the water itself, from its own bottle.

yes
Plumbing hookup

The dock can be connected to the tap and the drain, so you never fill or empty a tank. It does need a connection nearby.

yes
Clean water tank

The clean water tank in the dock, which wets the mop.

3 l
Dirty water tank

The tank that catches the dirty water from the mop. You empty this one yourself.

2 l
Dock size (w × d × h)

The width, depth and height of the dock. Measure the spot you have in mind, and leave room for the lid and for the robot driving in.

15.1 × 18.4 × 26.4 in (38.3 × 46.7 × 67 cm)
Navigation and obstacles 4 facts
Navigation

How the robot maps your home and follows that map. Lidar measures with a laser and works in the dark, a camera looks along and recognizes more.

LiDAR turret
Obstacle avoidance

How the robot sees loose things on the floor, such as cables, socks or a pet accident. A camera with depth sensing sees more than a bumper that reacts on contact.

AI camera
Climbs thresholds up to

The highest threshold the robot takes, as the maker states it. Measure your own: the step into a bathroom or onto a balcony is often higher.

0.8 in (20 mm)
Climbing system for high thresholds

An extending leg or wheel that carries the robot over a high threshold. Without one it usually stops at about 0.8 in (2 cm). On this model: the maker names this feature nowhere on the product page, so we take it as no.

no
Robot 5 facts
Robot height

How tall the robot is. It decides whether it fits under your sofa, bed or cabinet.

3.8 in (9.6 cm)
Robot diameter

How wide the robot is. Narrower gets between chair legs more easily, wider usually means a bigger dust bin.

13.7 in (34.7 cm)
Robot weight

What the robot weighs. It counts most if you carry it up a staircase every day.

11.3 lb (5.14 kg)
Dust bin in the robot

How much dust the robot holds before you empty it. It matters less with a self-emptying dock, which empties the bin after every run.

250 ml
Noise

The noise in decibels, in the setting its source names: makers mostly give the standard setting, stores often the highest. 65 dB is like a vacuum at half power, 55 dB like a conversation.

60 dB
Battery 2 facts
Battery capacity

The capacity of the battery. It hints at the runtime, but how much the robot draws counts just as much.

4,600 mAh
Runtime per charge

How long the robot cleans on one charge, at its quietest setting. After that it recharges and carries on where it stopped.

277 min
Smart features and warranty 3 facts
Matter

Matter is the standard that lets devices from different makers work together. With it you can run the robot outside the maker’s own app. On this model: the maker names this feature nowhere on the product page, so we take it as no.

no
Voice assistants

Which voice assistants the robot works with, such as Google Assistant or Alexa.

Alexa, Google Assistant
Warranty

The warranty the maker gives in the United States.

2 years

Sources: eufy.com · eu.eufy.com · coolblue.nl · Manual

Our score

4.7

Score 4.7 out of 10
Confidence: high. Two or more labs, or one lab and 300 or more owners’ ratings.

  • Lab tests 60% 5.6 Lab tests, 60% of the score: 5.6, measured by Vacuum Wars.
  • Owners’ ratings 25% 0.4 Owners’ ratings, 25%: 0.4, from 796 ratings averaging 2.9 stars at Amazon.
  • Features 15% 8.7 Features, 15%: 8.7, 77 of the 89 points for the facts the maker states.

Measured 5.4, counted 5.6: the fewer labs stand behind a result, the more we pull it toward the average of its station type.

What the lab measured

  • Deep clean on carpet 2.2
  • Pet hair 7.0
  • Mopping 6.3
  • Obstacle avoidance 6.7
  • Navigation 6.0

Price does not count, so a discount never lifts a model. Only robots a lab has tested are ranked. How we work this out.

The testers’ picks

Positions and labels, never text. These picks are shown beside the score and do not count in it. How the score comes about is on the method page.

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