Roborock S4 Max
No lab has tested it yet, so it is not in our ranking.
- 180 minRuntime per chargelonger than 6 of 10
Which robot is right for your home? Find out in 7 questions →
Before you buy, compare it with 2 recommended alternatives
No store 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 S4 Max Best on 1 fact | Cheapest of the top 10 ILIFE V2 Best on 1 fact | Highest score here Tikom G8000 Max Best on 3 facts | |
|---|---|---|---|
| Price and ranking | |||
| Lowest price | – | $99Amazon.com best | $129Amazon.com |
| Score | not in our ranking | best | |
| Rank | – | rank 8 of 9 without a station | rank 1 of 9 without a station |
| Customer rating | ★ 4.0 · 25,374 reviews | ★ 4.2 · 24,424 reviews | ★ 4.4 · 4,893 reviews best |
| Mopping | |||
| Mop type | no mop | no mop | flat or vibrating pad |
| Washes the mop | – | – | no |
| Station | |||
| Station same on all | charging dock only | charging dock only | charging dock only |
| Brush and obstacles | |||
| Anti-tangle brush | – | yes | – |
| Obstacle avoidance | – | – | none |
| Climbs thresholds up to higher is better | 0.8 in (20 mm) best | 0.6 in (15 mm) | 0.7 in (18 mm) |
| Size, noise and age | |||
| Robot height lower is better | 3.8 in (9.7 cm) | 3 in (7.6 cm) | 3 in (7.6 cm) best |
| Noise not judged | – | 60 dB | – |
| On the market since | October 2020 | – | March 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.
Roborock S4 Max 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 October 2020
Suction and brushes 1 fact
- 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.
- 2,000 Pa
Mopping 1 fact
- 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.
- no mop
Navigation and obstacles 2 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
- 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)
Robot 2 facts
- Robot height
How tall the robot is. It decides whether it fits under your sofa, bed or cabinet.
- 3.8 in (9.7 cm)
- 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.
- 460 ml
Battery 1 fact
- 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.
- 180 min
Smart features and warranty 1 fact
- 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: amazon.com · vacuumwars.com · support.roborock.com · home-assistant.io
Frequently asked questions about the Roborock S4 Max
Can the Roborock S4 Max mop?
No, this model only vacuums.
How high a threshold can the Roborock S4 Max climb?
Thresholds up to 0.8 in (20 mm), the maker says. Measure your own thresholds: the ones to a bathroom or balcony are often higher.
Does the Roborock S4 Max fit under low furniture?
The robot is 3.8 in (9.7 cm) tall, so it fits under furniture with at least 3.8 in of clearance.
How long does the Roborock S4 Max run on one charge?
180 minutes on its quietest setting.
