Dreame X50 Ultra vs Roborock Saros Z70
Researched by Riley Hart · prices checked Nov 11, 2026
As of Nov 11, 2026, the Dreame X50 Ultra costs $900 and the Roborock Saros Z70 has no store price on file. The Roborock Saros Z70 has a published review score and ranks #48 in our robot vacuums ranking; the Dreame X50 Ultra is not scored yet. Pick the Dreame X50 Ultra for multi level floors with raised sills and pets. Pick the Roborock Saros Z70 for early adopters with mostly hard floors. The Dreame X50 Ultra wins 4 of 6 points we can measure.
Who wins, point by point
The Dreame X50 Ultra wins 4 of 6 points we can measure. Built from today's prices, the specs and independent tests for these two robots.
| X50 Ultra | Saros Z70 | Winner | |
|---|---|---|---|
| Warranty | 3 years | 1 year | X50 Ultra |
| Suction | 20,000 Pa | 22,000 Pa | Saros Z70 |
| Runtime per charge | 220 min | 3 h | X50 Ultra |
| Onboard bin | 395 mL | 180 mL | X50 Ultra |
| Climbs thresholds up to | 1.7 in | 1.57 in | X50 Ultra |
| Robot height (fits under furniture) | 3.5 in | 3.14 in | Saros Z70 |
- You care most about warranty (3 years vs 1 year)
- You care most about runtime per charge (220 min vs 3 h)
- You care most about onboard bin (395 mL vs 180 mL)
- Best for multi level floors with raised sills and pets
- You care most about suction (22,000 Pa vs 20,000 Pa)
- You care most about robot height (fits under furniture) (3.14 in vs 3.5 in)
- Best for early adopters with mostly hard floors
- Suction
- Up to 20,000 Pa
- Navigation
- VersaLift DToF LiDAR
- Mopping
- Dual spinning pads
- Runtime
- Up to 220 min in quiet
Premium combo that steps over 4 cm sills and lowers its LiDAR
Full Dreame X50 Ultra review, pros and cons →- Suction
- 22,000 Pa
- Navigation
- StarSight 2.0 camera
- Mopping
- Yes
- Runtime
- 6,400 mAh battery
Slim Roborock flagship with a folding arm that picks up small items off the floor
Full Roborock Saros Z70 review, pros and cons →Side by side
| Dreame X50 Ultra | Roborock Saros Z70 | |
|---|---|---|
| Price | $900 | n/a |
| 3 year cost | $900 | n/a |
| Our score | Not scored yet | 5.9/10 |
| Rank in Floors | #88 | #48 |
| Status | on sale | on sale |
| Warranty | 3 years per the Dreame US product page (terms may vary by region) | 1 year limited per Roborock US store listings for its other robot vacuums; the Saros Z70 US page was not reachable to confirm |
| Suction | Up to 20,000 Pa (Dreame); Vacuum Wars measured 0.81 kPa bench suction and 17 CFM airflow | 22,000 Pa (brand claim); Vacuum Wars measured 0.3 kPa at the intake, below average, and 16 CFM airflow |
| Navigation | VersaLift DToF LiDAR that retracts to lower the robot (Dreame) | StarSight 2.0 camera and 3D ToF system with no LiDAR turret |
| Obstacle avoidance | AI RGB camera with 3D structured light, up to 200 object types (Dreame); Vacuum Wars scored 20 of 24 against a 13 average | AI object recognition with VertiBeam side sensing; Vacuum Wars scored 22 of 24 |
| Mopping | Dual spinning pads, MopExtend reaches out up to 4 cm, 10.5 mm lift on carpet (Dreame) | Yes, dual spinning pads with an extending pad, 22 mm lift on carpet, pads detach for vacuum only runs |
| Self empty | Yes, 3.2 L dust bag, up to 100 days (Dreame) | Yes, into a disposable bag (2.7 L per Vacuum Wars, 2.5 L per TechRadar) |
| Dock features | Auto empty, hot water mop washing up to 80 C with four settings, 113 F hot air drying, auto detergent, auto refill, 4.5 L clean and 4.0 L used tanks (Dreame) | Washes pads with 176°F water, dries at 131°F, doses detergent; 4 L clean and 3 L dirty tanks |
| Runtime | Up to 220 min in quiet mode, 6,400 mAh battery (Dreame); Vacuum Wars estimated 1,130 sq ft per charge | 6,400 mAh battery, 180 min official runtime per Vacuum Wars; Vacuum Wars estimated 1,115 sq ft per charge |
| Dustbin | 395 ml robot bin plus 3.2 L dock bag (Dreame) | 180 mL onboard bin, the smallest Vacuum Wars has tested |
| Height | 89 mm (3.5 in) with sensor retracted, 111 mm raised (Dreame) | 3.14 in per Android Authority and Vacuum Wars |
| Pet hair | Vacuum Wars measured 98% pet hair pickup and 0% hair wrap | Vacuum Wars measured 83% flattened pet hair pickup against a 92% average, and hair still tangled |
| App | Dreamehome app with built in voice control; works with Alexa, Google Assistant, Siri and Matter; 2.4 GHz Wi-Fi only (Dreame) | Roborock app with remote arm control, multi floor maps and pet features |
| Threshold | 42 mm single step, 60 mm two tier step (Dreame) | Up to 1.57 in (40 mm) per Roborock as reported by Android Authority and TechRadar |
| Best for | multi level floors with raised sills and pets | early adopters with mostly hard floors |
| Skip if | you want the best stain mopping per dollar | you have a lot of carpet |
Specs are maker claims unless a reviewer is named. Prices from the stores we link, checked daily.
What reviewers found
Dreame X50 Ultra
- Vacuum Wars (3.60 Vacuum Wars stars): Removed 83% of embedded sand and 98% of pet hair with 0% hair wrap and avoided 20 of 24 obstacles. Dried stain score was 80 against a 94 average. Estimated coverage was about 1,130 sq ft per charge. Source
Roborock Saros Z70
- Vacuum Wars (3.17/5): Lab tests found top tier mopping with a combined score of 269 against a 171 average and 22 of 24 obstacles avoided, but only 67% sand removal from carpet and 83% pet hair pickup; the arm worked about half the time. Source
- TechRadar: Vacuuming was excellent on carpet and lino and mopping strong at edges, but the arm had no fully successful autonomous pickup and the review unit rattled while cleaning. Source
Questions buyers ask
Which is better, the Dreame X50 Ultra or the Roborock Saros Z70?
The Roborock Saros Z70 has a published review score and ranks #48 in our robot vacuums ranking; the Dreame X50 Ultra is not scored yet. Pick the Dreame X50 Ultra for multi level floors with raised sills and pets. Pick the Roborock Saros Z70 for early adopters with mostly hard floors.
What is the difference between the X50 Ultra and the Saros Z70?
Suction: Up to 20,000 Pa (Dreame); Vacuum Wars measured 0.81 kPa bench suction and 17 CFM airflow on the X50 Ultra, 22,000 Pa (brand claim); Vacuum Wars measured 0.3 kPa at the intake, below average, and… on the Saros Z70. Navigation: VersaLift DToF LiDAR that retracts to lower the robot (Dreame) on the X50 Ultra, StarSight 2.0 camera and 3D ToF system with no LiDAR turret on the Saros Z70. Obstacle avoidance: AI RGB camera with 3D structured light, up to 200 object types (Dreame); Vacuum Wars… on the X50 Ultra, AI object recognition with VertiBeam side sensing; Vacuum Wars scored 22 of 24 on the Saros Z70.
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