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 3.8. The Dreame X50 Ultra leads on cleaning.
Dreame X40 Ultra
Dreame’s 2024 flagship, now hard to find new; worth it only at a deep discount, as the X50 and L-series robots clean better.
AmazonPrices were last checked October 26, 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 cleaning (measured 83% of sand from carpet, 97.5% of pet hair, no hair tangled vs measured 80% of sand from carpet, 75.5% of pet hair, some hair tangled (0.8)).
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 | Dreame X40 Ultra |
|---|---|---|
| Overall rating | 4.2/5 | 3.8/5 |
| Cleaning 30% | 70 measured 83% of sand from carpet, 97.5% of pet hair, no hair tangled | 37 measured 80% of sand from carpet, 75.5% of pet hair, some hair tangled (0.8) |
| Value 25% | 46 $850 | 50 no current price (neutral score used) |
| Dock 20% | 100 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent | 90 Self-empties the bin, washes the mop, hot-water mop wash, hot-air mop drying, doses detergent |
| 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). |
Dreame X40 Ultra
| Tested by | Carpet deep clean | Pet hair | Hair tangle (0 = none) | Area per charge | Conditions |
|---|---|---|---|---|---|
| Vacuum Wars | 80% | 75.5% | 0.8 | 1,287 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 | Dreame X40 Ultra | |
|---|---|---|
| Vacuum | ||
| Claimed suction | 20,000 Pa | 12,000 Pa |
| Main brush | HyperStream Detangling DuoBrush (two separate brushes) | Liftable rubber brush (TriCut Brush 2.0 sold separately) |
| Dustbin | 395 mL | 300 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 | 10.5 mm |
| Leaves mop at dock | Yes | Yes |
| Extending mop | Yes | Yes |
| Water tank | - | 80 mL |
| Dock | ||
| Dock | Washes mop + empties | Washes mop + empties |
| Self-empties | Yes | Yes |
| Dust bag | - | 3.2 L |
| Washes mop | Yes | Yes |
| Hot-water wash | Yes | Yes |
| Hot-air drying | Yes | Yes |
| Detergent dosing | Yes | Yes |
| Water hookup option | - | No |
| Clean water tank | 4.5 L | 4.5 L |
| Navigation & app | ||
| Navigation | LiDAR + camera | LiDAR + camera |
| Obstacle avoidance | AI camera with LED light, recognises up to 200 object types | RGB camera plus 3D structured light, recognises 120 object types |
| Climbs thresholds | 60 mm | 22 mm |
| Matter | Yes | - |
| Voice assistants | Alexa, Siri, Google Home | Alexa, Siri, Google Home |
| Build | ||
| Height | 3.5 in (89 mm) | - |
| Retracting LiDAR | Yes | - |
| Battery | 6,400 mAh | 6,400 mAh |
| Run time | Up to 3 h 40 min | - |
| Weight | 10 lb (4.5 kg) | - |
| Warranty | 3 years | 3 years |
| Released | 2025-02 | 2024-04 |