Best Robot Vacuums is reader-supported. When you buy through links on our site, we may earn a commission. Details.
We may earn a commission when you buy through links on this page. Learn more.
Roborock S8 vs Roborock Saros Z70
The Roborock Saros Z70 wins with a score of 8.5/10. Best for: Tech enthusiasts who want the latest.
Roborock S8
8.1/10$300
The best-value door into Roborock's S8 platform — a genuine vacuuming beast with class-leading navigation and tangle-free DuoRoller brushes. Just know the base model ships with a plain charging dock, so you empty the bin and rinse the mop yourself.
Read full review Winner
Roborock Saros Z70
8.5/10$2600
Futuristic flagship with robotic arm — impressive tech but very expensive
Read full reviewScore Comparison
Roborock S8Roborock Saros Z70
Overall
8.18.5
Hard Floor
9.09.0
Carpet
8.09.5
Mopping
7.58.0
Navigation
8.89.5
Noise
8.06.5
Smart Features
8.59.5
Maintenance
7.07.5
Specifications
| Roborock S8 | Spec | Roborock Saros Z70 |
|---|---|---|
| $300 | Price | $2600 |
| 6000 | Suction (Pa) | 22000 |
| 5200 | Battery (mAh) | 5200 |
| 67.0 | Noise (dB) | 70.0 |
| — | Dustbin (ml) | 350 |
| — | Water Tank (ml) | 200 |
| — | Mop Lift (mm) | 22.0 |
| — | Height (mm) | 103.0 |
| — | Weight (kg) | 4.2 |
| PreciSense LiDAR + Reactive 3D (Structured Light + IR) | Navigation | LiDAR + 3D ToF |
| ❌ | Self-Empty | ✅ |
| ❌ | Self-Wash Mop | ✅ |
| ❌ | Self-Dry Mop | ✅ |
| ✅ | AI Obstacle | ✅ |
Pros & Cons
Roborock S8
Roborock Saros Z70
Pros
- + 22,000Pa — highest suction available
- + Robotic arm picks up objects
- + Best obstacle avoidance
- + Premium build quality
Cons
- − Very expensive at $2,299
- − Arm feature still maturing
- − Louder than competitors
- − Smaller water tank
The Verdict
The Roborock Saros Z70 is the better choice with an overall score of 8.5/10 — best for tech enthusiasts who want the latest. The Roborock S8 is more affordable at $300 vs $2600.