Winner
11% OFF
£799.99
£899.99
Updated November 2026
Data from the official Roborock site.
2026 verdict
Newer is not automatically better here, and the Roborock Saros 10 is the smarter buy of these two Roborock robot vacuums for most homes.
It runs up to 220 minutes against 190 minutes, carries a larger 270 ml onboard bin, and pairs its sonic vibrating mop with a retractable-LiDAR dock that empties, refills and washes on its own, all at a lower price. The Roborock Saros 20 Sonic answers with more suction at 36,000 Pa against 22,000 Pa and dual-band Wi-Fi on top of Bluetooth. Choose the Roborock Saros 10 for runtime and value, and the Roborock Saros 20 Sonic if its extra suction and connectivity are worth the step up.
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The biggest differences
Where these two are furthest apart, and by how much.
- Suction Power+64%Roborock Saros 20 Sonic36000Pa vs 22000Pa
- Onboard Dustbin Capacity+18%Roborock Saros 10270ml vs 228ml
- Battery Life+16%Roborock Saros 10220 minutes vs 190 minutes
| Feature | Roborock Saros 10 | Roborock Saros 20 Sonic | Winner |
|---|---|---|---|
| Rating | 4.0 | 4.2 | Roborock Saros 20 Sonic |
| Battery Life | 220 minutes | 190 minutes | Roborock Saros 10 |
| Connectivity | 2.4 GHz WiFi, Bluetooth | 2.4 GHz WiFi, 5 GHz WiFi, Bluetooth | Roborock Saros 20 Sonic |
| Suction Power | 22000Pa | 36000Pa | Roborock Saros 20 Sonic |
| Onboard Dustbin Capacity | 270ml | 228ml | Roborock Saros 10 |
| Warranty | 1 year | 1 year | Tie |
| Auto Recharge | YES | YES | Tie |
| Integrations | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter | Tie |
| Navigation Type | Laser (LiDAR) | Laser (LiDAR) | Tie |
| Obstacle Detection | YES | YES | Tie |
| Cliff Detection | YES | YES | Tie |
| Multi-Room Mapping | YES | YES | Tie |
What the differences mean
Suction
The Roborock Saros 20 Sonic is rated at 36,000 Pa and the Roborock Saros 10 at 22,000 Pa, so the newer model has more headroom on thick carpet. Both are strong on hard floors, where the difference is harder to feel.
Runtime and onboard bin
The Roborock Saros 10 runs up to 220 minutes and carries a 270 ml onboard bin, against 190 minutes and 228 ml on the Saros 20 Sonic. The older model goes longer and holds more before it has to dock.
Connectivity
The Roborock Saros 20 Sonic supports both 2.4 GHz and 5 GHz Wi-Fi on top of Bluetooth. The Roborock Saros 10 has Bluetooth and 2.4 GHz Wi-Fi only, so the Sonic is the one for a busy 5 GHz network.
Price tier
The Roborock Saros 10 is the lower priced of the pair and the Roborock Saros 20 Sonic the newer premium one. For the same dock design and mop type, that gap buys more suction and 5 GHz rather than a different experience.
Dock footprint
The Roborock Saros 10 dock measures 440 x 409 x 470 mm and the Roborock Saros 20 Sonic 409 x 440 x 470 mm, so the space needed is effectively the same. Neither is a dock you move around.
Which one to buy if
- you want the longest runtime and the lower price
The Roborock Saros 10 runs up to 220 minutes against 190 on the Roborock Saros 20 Sonic, for less.
- thick carpet is the main surface
The Roborock Saros 20 Sonic is rated at 36,000 Pa against 22,000 Pa on the Roborock Saros 10.
- your router runs a busy 5 GHz network
Only the Roborock Saros 20 Sonic supports 5 GHz Wi-Fi; the Roborock Saros 10 is 2.4 GHz with Bluetooth.
- you want the most proven, best reviewed option
The Roborock Saros 10 is the outgoing flagship with a large body of owner reviews behind it.
Winner
11% OFF
£799.99
£899.99
- + Battery Life: 220 minutes
- + Onboard Dustbin Capacity: 270ml
- - Rating: 4.0 vs 4.2
- - Connectivity: 2.4 GHz WiFi, Bluetooth vs 2.4 GHz WiFi, 5 GHz WiFi, Bluetooth
Price unavailable right now
- + Rating: 4.2
- + Connectivity: 2.4 GHz WiFi, 5 GHz WiFi, Bluetooth
- + Suction Power: 36000Pa
- - Battery Life: 190 minutes vs 220 minutes
- - Onboard Dustbin Capacity: 228ml vs 270ml
What owners say
Owners of the Roborock Saros 10 describe a machine that cleans superbly and then looks after itself: strong suction and a sonic vibrating mop that pulls a surprising amount of dog hair and dust from hard floors and under beds, mapping that is accurate enough to rarely get stuck, and a dock that empties dust and dirty water and refills clean water and detergent so it only needs attention every few days. The repeated praise is for obstacle avoidance and quiet overnight runs. The repeated complaints are cost: a premium price, consumable pads and disposable dust bags, no floor cleaning solution in the box, and runs that are slower and need more tank top-ups on the most intensive settings.
Upgrading from the Roborock Saros 10?
Moving from the Roborock Saros 10 up to the Roborock Saros 20 Sonic buys two things: more rated suction, at 36,000 Pa against 22,000 Pa, and 5 GHz Wi-Fi. The dock that empties, washes and refills, the sonic vibrating mop and the retractable-LiDAR navigation carry over, and the newer model actually gives up runtime and a little onboard bin capacity. If your Roborock Saros 10 keeps up with your floors, there is little to gain. It is a step worth considering only if dense carpet or a 5 GHz network is holding the older model back, and even then the Saros 10 remains the better value.
Frequently Asked Questions
Which is better overall: Roborock Saros 10 or Roborock Saros 20 Sonic?
The Roborock Saros 10 for most homes, since it runs longer at up to 220 minutes, carries a larger onboard bin and costs less, with the same self-maintaining dock. The Roborock Saros 20 Sonic is the pick only when top-tier suction or 5 GHz Wi-Fi matters.
What is the biggest difference between the Roborock Saros 10 and the Roborock Saros 20 Sonic?
Suction and connectivity. The Roborock Saros 20 Sonic is rated at 36,000 Pa with 5 GHz Wi-Fi, while the Roborock Saros 10 is rated at 22,000 Pa on 2.4 GHz. They share the self-emptying, self-washing dock and the sonic mop.
Which one runs longer, the Roborock Saros 10 or the Roborock Saros 20 Sonic?
The Roborock Saros 10, rated up to 220 minutes against 190 on the Roborock Saros 20 Sonic. The Saros 10 also has a slightly larger onboard bin, so it goes longer between dock trips.
Do the Roborock Saros 10 and the Roborock Saros 20 Sonic work with Apple Home and Matter?
Yes, both support Matter, which brings them into Apple Home and SmartThings, and both also work with Alexa, Google Home and Home Assistant. Only the Roborock Saros 20 Sonic connects on 5 GHz Wi-Fi.
Who should buy the Roborock Saros 10?
Buyers who want a proven flagship with long runtime, the full self-maintaining dock and a lower price, especially if they mainly clean hard floors.
Who should buy the Roborock Saros 20 Sonic?
Homes with dense carpet that want the maximum rated suction, or a busy 5 GHz network, and that will trade some runtime and money for it.
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