# Dreame X50 Ultra vs Roborock Saros 20

As of Nov 4, 2026, the Dreame X50 Ultra costs $1,000 and the Roborock Saros 20 costs $1,600, so the Dreame X50 Ultra is $600 cheaper. The Roborock Saros 20 has a published review score and ranks #44 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 20 for low furniture and tall thresholds.

Prices checked Nov 4, 2026. HTML version: https://robotsforthat.com/vs/dreame-x50-ultra-vs-roborock-saros-20/

## Side by side

| | Dreame X50 Ultra | Roborock Saros 20 |
|---|---|---|
| Price | $1,000 | $1,600 |
| 3 year cost | $1,000 | $1,600 |
| Our score | Not scored yet | 5.8/10 |
| Rank in Floors | #85 | #44 |
| Status | on sale | on sale |
| Warranty | 3 years per the Dreame US product page (terms may vary by region) | 1 year limited (Roborock US store) |
| Suction | Up to 20,000 Pa (Dreame); Vacuum Wars measured 0.81 kPa bench suction and 17 CFM airflow | 36,000 Pa (brand claim); Vacuum Wars measured 15 CFM airflow |
| Navigation | VersaLift DToF LiDAR that retracts to lower the robot (Dreame) | StarSight Autonomous System 2.0 with 3D ToF sensors and an RGB camera, 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 | Recognizes over 300 obstacle types (brand claim); Vacuum Wars scored 17 of 24 objects avoided |
| Mopping | Dual spinning pads, MopExtend reaches out up to 4 cm, 10.5 mm lift on carpet (Dreame) | Yes, dual spinning pads with up to 13 N pressure, FlexiArm extending pad, 20 mm lift on carpet |
| Self empty | Yes, 3.2 L dust bag, up to 100 days (Dreame) | Yes, auto empties into a disposable bag; Roborock says a bag lasts up to 65 days |
| 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) | RockDock washes pads with water up to 212°F, dries at 131°F, auto refills water, doses detergent and dries the dust bag |
| 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; BGR cites about 200 min per charge and about 150 min to recharge |
| Dustbin | 395 ml robot bin plus 3.2 L dock bag (Dreame) | 260 mL onboard bin (Vacuum Wars) |
| Height | 89 mm (3.5 in) with sensor retracted, 111 mm raised (Dreame) | 3.14 in (79.8 mm) robot height per Roborock |
| Pet hair | Vacuum Wars measured 98% pet hair pickup and 0% hair wrap | Vacuum Wars measured 88% flattened pet hair pickup and 0% hair wrap |
| 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 Matter, Alexa and Google Home support plus built in voice control |
| Threshold | 42 mm single step, 60 mm two tier step (Dreame) | Up to 3.46 in double layer thresholds with AdaptiLift Chassis 3.0 (brand claim); Vacuum Wars cleared a 57 mm single step |
| Best for | multi level floors with raised sills and pets | low furniture and tall thresholds |
| Skip if | you want the best stain mopping per dollar | mopping is your top priority |

## 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](https://vacuumwars.com/dreame-x50-ultra-review-is-it-the-best-yet)

### Roborock Saros 20

- Vacuum Wars (3.81/5): Lab tests found 89% sand removal from carpet, 88% flattened pet hair pickup, 0% hair wrap, 17 of 24 obstacles avoided, a record 57 mm threshold climb and an above average combined mopping score; battery coverage was slightly below average at about 1,038 sq ft per charge. [Source](https://vacuumwars.com/roborock-saros-20-review/)
- CGMagazine (8.5/10): Performed strongly on pet hair, sand and fine dust on carpet and hard floors and fit under low furniture; reviewer flagged middling battery life, a small bin and trouble with loose cables. [Source](https://www.cgmagonline.com/review/hardware/roborock-saros-20-robot-vacuum/)
- Tom's Guide: Picked up 100% of cereal and kitty litter on carpet and 70% of pet hair on carpet, but mopping left floors streaky and patchy and the pads fell off once crossing a cable. [Source](https://www.tomsguide.com/home/home-appliances/roborock-saros-20-review)

## Questions buyers ask

### Which is better, the Dreame X50 Ultra or the Roborock Saros 20?

The Roborock Saros 20 has a published review score and ranks #44 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 20 for low furniture and tall thresholds.

### Which is cheaper?

The Dreame X50 Ultra at $1,000, versus $1,600 for the Roborock Saros 20, checked Nov 4, 2026. Over 3 years with running costs: $1,000 vs $1,600.

### What is the difference between the X50 Ultra and the Saros 20?

Suction: Up to 20,000 Pa (Dreame); Vacuum Wars measured 0.81 kPa bench suction and 17 CFM airflow on the X50 Ultra, 36,000 Pa (brand claim); Vacuum Wars measured 15 CFM airflow on the Saros 20. Navigation: VersaLift DToF LiDAR that retracts to lower the robot (Dreame) on the X50 Ultra, StarSight Autonomous System 2.0 with 3D ToF sensors and an RGB camera, no LiDAR turret on the Saros 20. Obstacle avoidance: AI RGB camera with 3D structured light, up to 200 object types (Dreame); Vacuum Wars… on the X50 Ultra, Recognizes over 300 obstacle types (brand claim); Vacuum Wars scored 17 of 24 objects… on the Saros 20.

Full reviews: [Dreame X50 Ultra](https://robotsforthat.com/robot/dreame-x50-ultra/index.md), [Roborock Saros 20](https://robotsforthat.com/robot/roborock-saros-20/index.md)