Roborock S8 MaxV Ultra vs Roborock Saros 20 Sonic
Quick take: The Roborock Saros 20 Sonic costs $100 less; the Roborock Saros 20 Sonic has stronger suction (36,000 vs 10,000 Pa).
| Spec | Roborock S8 MaxV Ultra | Roborock Saros 20 Sonic |
|---|---|---|
| Price | $1,800 | $1,700 |
| Rating | 4.7★ (3,200) | 4.6★ (200) |
| Type | Robot Vacuum & Mop | Robot Vacuum & Mop |
| Suction | 10000 Pa | 36000 Pa |
| Battery | 180 min | 180 min |
| Navigation | LiDAR + Camera | LiDAR + Camera |
| Noise | 67 dB | 60 dB |
| Dustbin | 400 ml | 228 ml |
| Water tank | 300 ml | 70 ml |
| Self-empty dock | Yes | Yes |
| Auto mop washing | Yes | Yes |
| Hot water washing | Yes | Yes |
| Obstacle avoidance | Yes | Yes |
| Carpet detection | Yes | Yes |
| Auto mop lifting | Yes | Yes |
| Multi-floor mapping | Yes | Yes |
| App control | Yes | Yes |
| Dimensions | 13.8 x 13.8 x 3.8 in | 13.8 x 13.9 x 3.1 in |
| Weight | 9.3 lbs | 11.2 lbs |
| Warranty | 1 year | 1 year |
Pros & cons
Roborock S8 MaxV Ultra
- ✓Industry-leading 10000Pa suction picks up pet hair, cereal, and fine dust with ease
- ✓Hot water mop washing keeps pads genuinely clean and odor-free
- ✓AI obstacle avoidance reliably dodges cables, shoes, and pet toys
- ✓Dual rubber brush rolls resist hair tangles better than bristle brushes
- ✓Excellent carpet detection lifts the mop pad high enough to avoid wetting carpet
- ✗Premium price point at $1800 puts it out of reach for many budgets
- ✗Dock is very large and requires significant floor space
- ✗Mop pressure is lighter than dedicated mopping robots
- ✗App has a steep learning curve with many nested menus
Roborock Saros 20 Sonic
- ✓Massive 36,000Pa suction with a dual Zero-Tangle system that shrugs off long hair
- ✓VibraRise 5.0 sonic mop scrubs at 4,000 vibrations per minute with 14N of downward pressure and 27% better corner coverage
- ✓AdaptiLift 3.0 chassis climbs double-layer thresholds up to 3.46 inches - the best in the industry
- ✓Reactive AI 3.0 recognizes over 300 object types using tri-laser structured light, an RGB camera, and VertiBeam side laser
- ✓New RockDock washes pads with 212°F hot water, auto-doses detergent, and holds about 65 days of debris in a 2.7L bag
- ✗Premium $1,699.99 price sits at the very top of the robot vacuum market
- ✗Small 228ml onboard dustbin and 70ml water tank lean heavily on frequent dock returns
- ✗D-shaped sonic pad still can't reach fully into hard corners despite the extendable arm
- ✗Large RockDock needs significant floor space and camera-based navigation raises privacy considerations