Dreame X50 Ultra
Dreame’s 2025 flagship, now discounted: a good fit for homes with thresholds and low furniture that want leg-climbing and a lowering LiDAR for less than the X60.
Amazon $849.99$849.99
The Dreame X50 Ultra is the better robot vacuum overall, rated 4.2 to 3.9. The Dreame X50 Ultra leads on value. The Roborock Saros 20 wins on cleaning. The Dreame X50 Ultra costs $750 less ($849.99 vs $1,599.99).
Roborock Saros 20
For mixed-floor homes with high thresholds and low furniture that want a flagship that also cleans carpet well.
Amazon Roborock $1,599.99$1,599.99
Prices were last checked October 27, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Dreame X50 Ultra for value ($850 vs $1,600).
- Choose the Roborock Saros 20 for cleaning (measured 89% of sand from carpet, 88% of pet hair, no hair tangled vs measured 83% of sand from carpet, 97.5% of pet hair, no hair tangled).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every self-cleaning dock robot vacuum; a clear win is highlighted. How we rank explains each one.
| Factor weight | Dreame X50 Ultra | Roborock Saros 20 |
|---|---|---|
| Overall rating | 4.2/5 | 3.9/5 |
| Cleaning 30% | 70 measured 83% of sand from carpet, 97.5% of pet hair, no hair tangled | 80 measured 89% of sand from carpet, 88% of pet hair, no hair tangled |
| Value 25% | 46 $850 | 7 $1,600 |
| Dock 20% | 100 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent | 100 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent, optional water hookup |
| Navigation 15% | 100 LiDAR + camera | 100 LiDAR + camera |
| Mopping 10% | 86 Dual spinning pads, leaves its mop at the dock for carpet, extends to edges | 86 Dual spinning pads, leaves its mop at the dock for carpet, extends to edges |
Independent tests
Dreame X50 Ultra
| Tested by | Carpet deep clean | Pet hair | Hair tangle (0 = none) | Area per charge | Conditions |
|---|---|---|---|---|---|
| Vacuum Wars | 83% | 97.5% | 0 | 1,125 sq ft | Embedded sand in medium-pile carpet; flattened 2.5 in pet hair on carpet, two runs; 7 in hair tangle on hard floor (0 = none wrapped). |
Roborock Saros 20
| Tested by | Carpet deep clean | Pet hair | Hair tangle (0 = none) | Area per charge | Conditions |
|---|---|---|---|---|---|
| Vacuum Wars | 89% | 88% | 0 | 1,039 sq ft | Embedded sand in medium-pile carpet; flattened 2.5 in pet hair on carpet, two runs; 7 in hair tangle on hard floor (0 = none wrapped). |
Specifications
| Dreame X50 Ultra | Roborock Saros 20 | |
|---|---|---|
| Vacuum | ||
| Claimed suction | 20,000 Pa | 36,000 Pa |
| Main brush | HyperStream Detangling DuoBrush (two separate brushes) | DuoDivide anti-tangle brush |
| Dustbin | 395 mL | 259 mL |
| Extending side brush | Yes | Yes |
| Mopping | ||
| Mop | Dual spinning pads, leaves its mop at the dock for carpet, extends to edges | Dual spinning pads, leaves its mop at the dock for carpet, extends to edges |
| Mop lift | 10.5 mm | 15 mm |
| Leaves mop at dock | Yes | Yes |
| Extending mop | Yes | Yes |
| Water tank | - | 65 mL |
| Dock | ||
| Dock | Washes mop + empties | Washes mop + empties |
| Self-empties | Yes | Yes |
| Washes mop | Yes | Yes |
| Hot-water wash | Yes | Yes |
| Hot-air drying | Yes | Yes |
| Detergent dosing | Yes | Yes |
| Water hookup option | - | Yes |
| Clean water tank | 4.5 L | - |
| Navigation & app | ||
| Navigation | LiDAR + camera | LiDAR + camera |
| Obstacle avoidance | AI camera with LED light, recognises up to 200 object types | 3D ToF and RGB camera, recognises 300+ object types |
| Climbs thresholds | 60 mm | 88 mm |
| Matter | Yes | Yes |
| Voice assistants | Alexa, Siri, Google Home | Alexa, Google Assistant, Siri Shortcuts |
| Build | ||
| Height | 3.5 in (89 mm) | 3.1 in (79.8 mm) |
| Retracting LiDAR | Yes | No |
| Battery | 6,400 mAh | 6,400 mAh |
| Run time | Up to 3 h 40 min | Up to 3 h 20 min |
| Weight | 10 lb (4.5 kg) | - |
| Warranty | 3 years | 1 year |
| Released | 2025-02 | 2026-03 |