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- S8 MaxV Ultra vs Saros 20 Sonic
Roborock S8 MaxV Ultra vs Roborock Saros 20 Sonic
What S8 MaxV Ultra does better (2) and where Saros 20 Sonic wins (9) — every spec side by side.
vs
5.5Cleaning power9.0
7.6Navigation9.3
7.7Mopping7.5
5.4Base station6.0
7.4Battery9.0
Dimensions
Size comparison
S8 MaxV UltraSaros 20 Sonic
| S8 MaxV Ultra | Saros 20 Sonic | Difference | |
|---|---|---|---|
| Height | 103 mm | 80 mm | +23 mm |
| Width / diameter | 353 mm | 353 mm | = |
| Length | 353 mm | 353 mm | = |
Drawn to the same scale from the official dimensions (front and side).
Why is S8 MaxV Ultra better than Saros 20 Sonic?
- Water tank (robot)100 ml vs 70 ml+43%
- Dustbin (robot)270 ml vs 228 ml+18%
Why is Saros 20 Sonic better than S8 MaxV Ultra?
- Suction power10,000 Pa vs 36,000 Pa3.6×
- Threshold climbing20 mm vs 88 mm4.4×
- Mop lift height20 mm vs 35 mm+75%
- Runtime180 min vs 190 min+6%
- Height103 mm vs 80 mm+29%
- Battery capacity5,200 mAh vs 6,400 mAh+23%
- Charging time240 min vs 150 min+60%
- Dust bag (dock)2.5 l vs 2.7 l+8%
- Noise level67 dB vs 64 dB+5%
Specifications
Side by side
| Suction & cleaning | ||
| Suction power | 10,000 Pa | 36,000 Pa |
| Dustbin (robot) | 270 ml | 228 ml |
| Main brush | Dual main brushes | Single main brush |
| Anti-tangle brush | — | Yes |
| Side brushes | 1 | 1 |
| Extending side brush | Yes | Yes |
| Carpet detection | Yes | Yes |
| Dirt detection | Yes | — |
| Noise level | 67 dB | 64 dB |
| Navigation & obstacles | ||
| Navigation | Laser (LiDAR) | Laser (LiDAR) |
| Navigation sensors | LiDAR laser (LDS), Wall sensor, Cliff sensors | LiDAR laser (LDS), Retractable LiDAR, Wall sensor, Cliff sensors |
| Retractable LiDAR | — | Yes |
| Obstacle avoidance | AI camera | AI camera |
| Threshold climbing | 20 mm | 88 mm |
| No-go zones / virtual walls | Yes | Yes |
| Room mapping & room selection | Yes | Yes |
| Mopping | ||
| Mop type | Vibrating / sonic mop | Vibrating / sonic mop |
| Mop lifting on carpets | Yes | Yes |
| Mop lift height | 20 mm | 35 mm |
| Automatic mop removal | — | Yes |
| Extending mop (edges) | Yes | Yes |
| Water tank (robot) | 100 ml | 70 ml |
| Base station | ||
| Base station | All-in-one dock (empty + wash) | All-in-one dock (empty + wash) |
| Auto-empty dust station | Yes | Yes |
| Dust bag (dock) | 2.5 l | 2.7 l |
| Mop washing in the dock | Yes | Yes |
| Hot-water mop washing | Yes | Yes |
| Hot-air mop drying | Yes | Yes |
| Automatic water refill | Yes | Yes |
| Clean water tank (dock) | 4 l | 4 l |
| Dirty water tank (dock) | — | 3.5 l |
| Battery & runtime | ||
| Battery capacity | 5,200 mAh | 6,400 mAh |
| Runtime | 180 min | 190 min |
| Charging time | 240 min | 150 min |
| Cleaning area per charge | 300 m² | — |
| Recharge & resume | Yes | Yes |
| Size & weight | ||
| Width / diameter | 353 mm | 353 mm |
| Length | 353 mm | 353 mm |
| Height | 103 mm | 80 mm |
| Shape | Round | Round |
| Colours | Black | Black |
| App & smart home | ||
| App control | Yes | Yes |
| Voice assistants | Amazon Alexa, Google Assistant, Apple Siri | Amazon Alexa, Google Assistant, Apple Siri |
| Matter | — | Yes |
| Live camera view / video call | Yes | Yes |
| Remote control | Yes | — |
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