Roborock S8 Max Ultra with Refill & Drainage System
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Before you buy, compare it with 2 recommended alternatives
No shop here sells this model today, so beside it the highest-scored model with the same kind of station that one does, and the cheapest of the top 10.
Green is the best of these 3, also when they share the lead.
| This model Roborock S8 Max Ultra with Refill & Drainage System Best on 2 facts | Cheapest of the top 10 MOVA S70 Roller Best on 2 facts | Highest score here Roborock Saros 20 Flow Best on 7 facts | |
|---|---|---|---|
| The facts that decide most | |||
| The lowest price today at a shop that delivers to you, delivery included. A price with an asterisk comes from a shop abroad, and its delivery cost is our own estimate. Lowest price | – | 399 €Amazon.de best | 1,299 €Roborock (brand store) |
| Our own score out of 10: 60% test-site results, 25% shop ratings and 15% the maker’s facts. Price does not count. Score | not in our ranking | best | |
| 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. In this comparisonWhen it matters
When it matters less
Source
| 8,000 Pa | 28,000 Pa | 36,000 Pa best |
| How long the robot cleans on one charge, at its quietest setting. After that it recharges and carries on where it stopped. In this comparisonWhen it matters
When it matters less
Source
| – | 220 min | 301 min best |
| 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. In this comparisonWhen it matters
When it matters less
Source
| 20 mm | 22 mm | 45 mm best |
| How tall the robot is. It decides whether it fits under your sofa, bed or cabinet. In this comparisonWhen it matters
When it matters less
Source
| 9.7 cm | 9 cm | 9 cm best |
| How far the robot lifts the mop when it drives onto a carpet. From about 10 mm a medium pile stays dry. In this comparisonWhen it matters
When it matters less
Source
| 20 mm best | 12 mm | 15 mm |
| How long the maker says a dust bag lasts with daily use. With pets or a lot of carpet it is shorter. In this comparisonWhen it matters
When it matters less
Source
| up to 49 days | up to 100 days best | up to 65 days |
Facts as the maker states them. A dash means the maker does not name it. Each model’s page gives the source of every fact. Noise is the maker’s own figure, so we do not judge it, and a customer rating only counts from 20 reviews.
Roborock S8 Max Ultra with Refill & Drainage System specifications
The numbers that matter first, then every fact by group. As published by the maker or the shop we read it from.
Roborock · on the market since April 2024
Consumables: a dust bag in the station, which lasts up to 49 days.
Dimensionsrobot and dock
From the published dimensions. The dock needs a spot 42 cm wide and 41 cm deep.
Suction and brushes 4 facts
- Suction power
Among the models we track
8,000 Pa on this model
Lowest
450 Pa Highest
42,000 Pa Middle
6,000 PaHigher than 571 of the 984 models we track.
When it matters
- Deep-pile carpet and rugs, where dust sinks in.
- Pet hair, sand and crumbs trodden into fibres.
When it matters less
- On hard floors the gain from a higher figure is small: the dust lies on top.
Source: us.roborock.com · checked on 26 Sept
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
- Extending side brush
When it matters
- Corners and edges along kickboards, where a round robot leaves a strip of dust.
- Rooms with many walls and furniture edges.
When it matters less
- In open rooms with few corners it adds little.
Source: us.roborock.com · checked on 26 Sept
The side brush swings out in a corner or along a kickboard, so the dust there is swept in too.
- yes
- Carpet detection
When it matters
- Rugs and carpets, where the robot should raise its suction.
- Mopping in a home with rugs, which have to stay dry.
When it matters less
- Without carpets or rugs it has nothing to detect.
Source: us.roborock.com · checked on 2 Oct
The robot notices when it drives onto a carpet. Most then raise their suction, and a mopping robot lifts its mop or leaves it at the dock.
- detects carpet and boosts suction
- Dirt detection
When it matters
- Entrances and kitchens, where dirt gathers in one place.
- Pets that leave hair in a favourite spot.
When it matters less
- If dirt is spread evenly, a normal pass cleans it just as well.
Source: us.roborock.com · checked on 2 Oct
A sensor notices where more dirt lies, at the doormat for example, and the robot cleans that patch longer or a second time.
- yes
Mopping 3 facts
- Mop type
When it matters
- Homes with a lot of hard floor that you want mopped, not just wiped.
- Dried-on dirt in a kitchen, which spinning pads or a roller scrub off better than a dragged cloth.
When it matters less
- If you only vacuum, the mop’s build decides nothing.
Source: us.roborock.com · checked on 26 Sept
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.
- flat or vibrating pad
- Mop lift on carpet
Among the models we track
20 mm on this model
Lowest
5 mm Highest
30 mm Middle
10.5 mmHigher than 277 of the 292 models we track.
When it matters
- Homes with rugs and hard floors side by side.
- Mopping without the robot leaving the rugs damp.
When it matters less
- Without rugs the mop never has to lift.
Source: us.roborock.com · checked on 26 Sept
How far the robot lifts the mop when it drives onto a carpet. From about 10 mm a medium pile stays dry.
- 20 mm
- Automatic mop detach
When it matters
- Homes with carpets or rugs that should stay dry.
- High-pile rugs that no mop lift clears.
When it matters less
- Without carpets the mop can stay on.
Source: us.roborock.com · checked on 10 Oct
The robot leaves the mop at the dock before it vacuums a carpet, so the carpet never gets wet. On this model: Assumed, not a stated fact: the maker's full specification does not name it, so we take it as no.
- no (assumed)
Dock 10 facts
- Empties the dust bin
When it matters
- Pets, sand or a large home, which fill the bin every run.
- Dust allergy, since you rarely touch the dust yourself.
When it matters less
- In a small home with little dust, emptying the bin by hand takes a moment.
Source: us.roborock.com · checked on 26 Sept
The dock empties the robot’s dust bin, usually after every run. You only empty the dock’s bag or bin.
- yes
- Bagless
When it matters
- Not wanting to buy bags again and again.
- Pets, whose hair fills a bag quickly.
When it matters less
- With a dust allergy a sealed bag keeps the dust in when you throw it away, so bagless is no gain.
Source: us.roborock.com · checked on 26 Sept
The dock collects dust in a bin instead of a disposable bag. No bags to buy, but you empty it yourself.
- no
- Dust bag lasts
Among the models we track
up to 49 days on this model
Lowest
up to 30 days Highest
up to 180 days Middle
up to 70 daysLower than 389 of the 483 models we track.
When it matters
- Pets or a lot of carpet, which fill a bag faster than the maker’s figure.
- Counting what bags cost in a year.
When it matters less
- With a bagless dock there is no bag to replace.
Source: us.roborock.com · checked on 26 Sept
How long the maker says a dust bag lasts with daily use. With pets or a lot of carpet it is shorter.
- up to 49 days
- Washes the mop
313 of the 396 models we track have this.
When it matters
- Mopping several times a week, when rinsing pads by hand gets tiresome.
- Kitchens and hallways, where a mop picks up a lot of dirt.
When it matters less
- If you rarely mop, washing the pads by hand is little work.
Source: us.roborock.com · checked on 26 Sept
The dock washes the mop for you, so you do not rinse it by hand.
- yes
- Wash temperature
Among the models we track
60 °C on this model
Lowest
55 °C Highest
100 °C Middle
75 °CLower than 153 of the 181 models we track.
When it matters
- Kitchens with grease and sticky spills.
- Pets, where a hot wash keeps the mop from smelling.
When it matters less
- For light dust on a living room floor a cold wash will do.
Source: us.roborock.com · checked on 26 Sept
How hot the dock washes the mop. Above 60 °C grease comes off, which is what keeps a mop from smelling.
- 60 °C
- Dries the mop
When it matters
- Mopping often, since a damp mop in the dock starts to smell.
- Humid rooms, where a mop dries slowly.
When it matters less
- If you take the pads off and wash them yourself, you will not miss it.
Source: us.roborock.com · checked on 26 Sept
The dock dries the mop afterwards, so it does not sit there wet and start to smell.
- yes
- Hot-air drying
258 of the 310 models we track have this.
When it matters
- Mopping daily, when the mop barely dries before the next run.
- A smell from the dock in a warm or humid home.
When it matters less
- If you mop only now and then, cold air dries the mop in time.
Source: us.roborock.com · checked on 26 Sept
Drying is done with warm air instead of cold. It is faster and it helps against smell.
- yes
- Dispenses detergent
When it matters
- Kitchens and greasy floors, where water alone leaves a film.
- Not wanting to add cleaner by hand each time.
When it matters less
- Some floors, such as oiled wood, are best mopped with water only, so there it adds nothing.
Source: us.roborock.com · checked on 26 Sept
The dock mixes detergent into the water itself, from its own bottle.
- yes
- Plumbing hookup
63 of the 156 models we track have this.
When it matters
- Mopping every day, without filling and emptying tanks.
- A spot near a tap and a drain, such as a utility room or under a kitchen counter.
When it matters less
- If the dock stands far from any plumbing, it is no use.
Source: us.roborock.com · checked on 27 Sept
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
- Dock size (w × d × h)
When it matters
- A small hallway or a niche where the dock has to fit.
- Placing the dock under a cabinet or a counter.
When it matters less
- Along an open wall with room to spare it decides little.
Source: us.roborock.com · checked on 3 Oct
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.
- 41.9 × 40.9 × 30 cm
Navigation and obstacles 4 facts
- Navigation
When it matters
- Several rooms, where a map lets you send the robot to one of them.
- Cleaning in the dark, which lidar does and a camera alone does not.
When it matters less
- In one open room even simple navigation covers the floor.
Source: us.roborock.com · checked on 26 Sept
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 recognises more.
- LiDAR turret
- Obstacle avoidance
When it matters
- Cables, socks and toys left on the floor.
- Pets, whose accidents a robot should steer around.
When it matters less
- In a home that is tidied before each run it matters less.
Source: us.roborock.com · checked on 26 Sept
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
Among the models we track
20 mm on this model
Lowest
3 mm Highest
60 mm Middle
20 mmHigher than 365 of the 949 models we track.
When it matters
- Door sills and raised strips between rooms.
- Thick rugs whose edge the robot has to climb.
When it matters less
- In a flat home with no sills it decides nothing.
Source: product.roborock.com · checked on 8 Oct
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.
- 20 mm
- Camera on board
When it matters
- Privacy, if you would rather not have a camera driving through your home.
- Small things on the floor, which a camera sees better than lidar alone.
When it matters less
- If the floor is tidied before each run, a camera adds little.
Source: derived, no source of its own · checked on 2 Oct
Whether the robot has a camera, and what for: to recognise obstacles, or also to show you a live picture of your home in the app.
- obstacle camera
Robot 1 fact
- Robot height
Among the models we track
9.7 cm on this model
Lowest
5.6 cm Highest
20.4 cm Middle
9.5 cmHigher than 595 of the 1067 models we track.
When it matters
- Sofas, beds and cabinets with little room underneath.
- Dust that gathers under furniture you never move.
When it matters less
- With furniture on high legs or flat on the floor it decides nothing.
Source: us.roborock.com · checked on 26 Sept
How tall the robot is. It decides whether it fits under your sofa, bed or cabinet.
- 9.7 cm
Battery 1 fact
- Battery capacity
Source: us.roborock.com · checked on 26 Sept
The capacity of the battery. It hints at the runtime, but how much the robot draws counts just as much.
- 5,200 mAh
Smart features and warranty 2 facts
- Voice assistants
When it matters
- Starting the robot by voice while your hands are full.
- A home already run with Alexa, Google or Siri.
When it matters less
- If you start it from the app or a schedule, you will not miss it.
Source: us.roborock.com · checked on 26 Sept
Which voice assistants the robot works with, such as Google Assistant or Alexa.
- Alexa, Siri, Google Home
- Home Assistant
When it matters
- A smart home run from Home Assistant.
- Automations, such as cleaning when everybody has left.
When it matters less
- If you only use the maker’s app, it adds nothing.
Source: home-assistant.io · checked on 2 Oct
Whether the robot works with Home Assistant, the home automation software you run yourself. Official means the integration comes with Home Assistant itself, community that volunteers maintain it.
- official integration
Sources: us.roborock.com · product.roborock.com · home-assistant.io
Frequently asked questions about the Roborock S8 Max Ultra with Refill & Drainage System
Does the Roborock S8 Max Ultra with Refill & Drainage System empty its own dust bin?
Yes. The station empties the robot’s dust bin after every run. The dust bag in the station lasts up to 49 days, the maker says.
Does the Roborock S8 Max Ultra with Refill & Drainage System wash and dry its own mop?
Yes. The station washes the mop itself, with water at 60 °C. It then dries the mop with warm air.
Does the Roborock S8 Max Ultra with Refill & Drainage System work with Alexa, Google Home or Siri?
It works with Alexa, Siri and Google Home. Home Assistant has an official integration for this model.
How high a threshold can the Roborock S8 Max Ultra with Refill & Drainage System climb?
Thresholds up to 20 mm, the maker says. Measure your own thresholds: the ones to a bathroom or balcony are often higher.
Does the Roborock S8 Max Ultra with Refill & Drainage System fit under low furniture?
The robot is 9.7 cm tall, so it fits under furniture with at least 10 cm of clearance.
Does the Roborock S8 Max Ultra with Refill & Drainage System lift its mop on carpet?
Yes, it lifts the mop 20 mm as soon as it drives onto carpet.
The maker
Roborock
- Reviews on Trustpilot
- Headquarters: China
- Founded in 2014
Roborock, the trading name of Beijing Roborock Technology Co., Ltd., develops and makes robot vacuums and cordless stick vacuums. It was founded in July 2014 and is headquartered in Beijing, China, with research and branch offices in Shanghai and Shenzhen. Xiaomi invested in the company in September 2014, and its first product, the Mi Home Robotic Vacuum Cleaner, went on sale in September 2016.