1Rank 01 of 10 · Robot Vacuums
Roborock Saros 20
The flattest robot here at 7.98 cm and the one with the most complete datasheet: threshold height, noise, dustbin volume and wash temperature are all stated. Its 8.8 cm double-step claim was repeated in a Notebookcheck review.
8.4BPR score
- €999Price
- 8.8 cm double step (4.5 + 4.3 cm); robot 7.98 cm tall — published by RoborockPublished threshold-crossing height and robot height
- 1 of 10in Robot Vacuums
- 8.4BPR score 0–10
Review
What this product is
Written after the analysis, from the same sources the score is built on: the manufacturer's documentation, available studies and verified owner feedback.
The Saros 20 suits homes with low furniture and awkward door sills. Roborock publishes almost everything a buyer needs: 350 × 353 × 79.8 mm, a double threshold of up to 8.8 cm (4.5 + 4.3 cm), a 6,400 mAh battery, 200 minutes in quiet mode, a 259 ml dustbin, 63 dB in balanced mode, mop washing at up to 100 °C and drying at 55 °C. It has no LiDAR turret; navigation uses 3D ToF sensors and an RGB camera.
Independent evidence is the best in this ranking. Notebookcheck (1 March 2026) confirmed the 8.8 cm climb in two steps, measured about 60 dB in standard mode and about 70 dB at maximum suction, and estimated roughly 11 kWh a month for a daily 50 m² run. Vacuum Wars scores it 3.81 with 89% of embedded sand lifted from carpet. The Smart Home Hookup saw it clear a 50 mm threshold.
What is missing: the German product page lists no security or privacy certificate for a robot that carries a camera, Notebookcheck found mopping behind roller-mop rivals and no detergent in the box, and Vacuum Wars calls the dustbin smaller than average. The €999 price was a promotion against a €1,489 list price.
Technical data
Specification
Figures from the manufacturer's documentation, verified against available outside sources. Values we could not confirm are marked as declared.
- Declared suction
- 36,000 Pa
- Threshold crossing
- up to 8.8 cm double step (4.5 + 4.3 cm)
- Robot dimensions
- 350 × 353 × 79.8 mm
- Battery
- 6,400 mAh
- Runtime
- 200 min (quiet mode)
- Robot dustbin
- 259 ml
- Mop system
- two rotating pads
- Mop washing
- up to 100 °C
- Mop drying
- 55 °C hot air
- Noise
- 63 dB (balanced mode)
- Navigation
- 3D ToF + RGB camera, no LiDAR turret
- Warranty
- 2 years
Component scores
Where the score
comes from.
Four components, equal weight, each on a 0–10 scale and each resting on a named source. The overall score is their mean — the full procedure is in the methodology.
What we liked
- 7.98 cm tall — the lowest robot in this ranking
- Double threshold up to 8.8 cm (4.5 + 4.3 cm), repeated in Notebookcheck's review
- Noise is published: 63 dB in balanced mode
- Mop washing at up to 100 °C, drying at 55 °C
- 89% of embedded carpet sand in Vacuum Wars' test
Worth knowing
- No security or privacy certificate named on the product page
- Mopping rated behind roller-mop robots by Notebookcheck
- Small 259 ml dustbin
- List price is €1,489; €999 was a promotional price
Comparison
How it compares
within the category
All values come from the same analysis and are comparable only within the category Robot Vacuums.
| Product | Score | Published threshold-crossing height and robot height | Price |
|---|---|---|---|
| Saros 20This product · top score | 8.4 | 8.8 cm double step (4.5 + 4.3 cm); robot 7.98 cm tall — published by Roborock | €999 |
| V70 Ultra CompleteRunner-up | 8.3 | 9 cm double step, 5 cm single step; robot 8.8 cm tall — published by Mova | €849 |
| Category average10 products analysed | 7.5 | — | — |
FAQ
Frequently asked questions
How high a threshold can the Roborock Saros 20 cross?
Roborock states up to 8.8 cm for a double step made of 4.5 cm and 4.3 cm. Notebookcheck repeated that figure in its March 2026 review, and The Smart Home Hookup saw the robot clear a 50 mm threshold.
Does the Saros 20 have a camera?
Yes. Navigation and obstacle recognition use 3D ToF sensors together with an RGB camera. The German product page we opened names no security or privacy certificate.
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