Roborock S8 Max Ultra with Refill & Drainage System
No lab has tested it yet, so it is not in our ranking.
- 0.8 inMop lift on carpethigher than 58 of 63
- 3.8 inRobot heightlower than 40 of 64
Is the Roborock S8 Max Ultra with Refill & Drainage System right for your home? Find out in 7 questions →
Before you buy, compare it with 2 recommended alternatives
Beside it, two models on sale today that come closest to it on score and price, with the same kind of station where we have them.
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 | Higher score, 8% cheaper eufy Omni E25 Best on 2 facts | Higher score, 12% pricier MOVA Z60 Ultra Roller Complete Best on 4 facts | |
|---|---|---|---|
| Price and ranking | |||
| Lowest price | $649Amazon.com | $599Amazon.com best | $727MOVA (brand store) |
| Score | not in our ranking | ||
| Rank | – | rank 7 of 66 with an all-in-one station | rank 4 of 66 with an all-in-one station |
| Customer rating | ★ 4.1 · 2,801 reviews | ★ 4.4 · 54,063 reviews best | – |
| Mopping | |||
| Mop type | flat or vibrating pad | roller mop | roller mop |
| Mop lift on carpet higher is better | 0.8 in (20 mm) best | 0.4 in (10.5 mm) | 0.6 in (14 mm) |
| Automatic mop detach | – | no | no |
| Washes the mop same on all | yes | yes | yes |
| Hot-air drying same on all | yes | yes | yes |
| Station | |||
| Station same on all | all-in-one station | all-in-one station | all-in-one station |
| Dust bag lasts longer is better | up to 49 days | up to 75 days | up to 100 days best |
| Plumbing hookup | yes (best) | no | no |
| Brush and obstacles | |||
| Anti-tangle brush | – | yes | yes |
| Obstacle avoidance | AI camera | AI camera | 3D sensor (structured light) |
| Climbs thresholds up to higher is better | – | 0.8 in (21 mm) | 1.9 in (48 mm) best |
| Climbing system for high thresholds | – | no | yes (best) |
| Size, noise and age | |||
| Robot height lower is better | 3.8 in (9.7 cm) | 4.4 in (11.1 cm) | 3.8 in (9.6 cm) best |
| Noise not judged | – | 63 dB | 72 dB |
| On the market since | April 2024 | December 2024 | December 2025 |
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.
Prices per store
On October 3, 2026 the lowest price for the Roborock S8 Max Ultra with Refill & Drainage System is $649 at Amazon.com, shipping to the United States included.
All prices include shipping to the United States. Sales tax is added at checkout. We may earn a commission when you buy through these links. It never changes our ranking.
| Store | Color | Price | Delivery time and returns | Reviews | Checked | Link to the store |
|---|---|---|---|---|---|---|
 Amazon.com whitelowest price sold by a third-party seller | white | $649lowest price since Oct 3: $649 | about 1–5 dayslowest pricereturns through the seller | ★ 4.1 (2,801) | 4 hours ago | Visit store ↗ |
 Roborock (brand store) white | white | $649 | about 3–7 days | – | 4 hours ago | Visit store ↗ |
Price history
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 store 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 16.5 in wide and 16.1 in deep.
Suction and brushes 4 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
- Extending side brush
The side brush swings out in a corner or along a baseboard, so the dust there is swept in too.
- yes
- Carpet detection
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
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 2 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.
- flat or vibrating pad
- 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.
- 0.8 in (20 mm)
Dock 10 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.
- no
- Dust bag lasts
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
The dock washes the mop for you, so you do not rinse it by hand.
- yes
- Wash temperature
How hot the dock washes the mop. Above 140 °F (60 °C) grease comes off, which is what keeps a mop from smelling.
- 140 °F (60 °C)
- 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
- 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.
- 16.5 × 16.1 × 11.8 in (41.9 × 40.9 × 30 cm)
Navigation and obstacles 3 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
- Camera on board
Whether the robot has a camera, and what for: to recognize obstacles, or also to show you a live picture of your home in the app.
- obstacle camera
Robot 1 fact
- Robot height
How tall the robot is. It decides whether it fits under your sofa, bed or cabinet.
- 3.8 in (9.7 cm)
Battery 1 fact
- Battery capacity
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
Which voice assistants the robot works with, such as Google Assistant or Alexa.
- Alexa, Siri, Google Home
- Home Assistant
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 · home-assistant.io
