Dreame L40 Ultra

Pros

• Comparative performance ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 5.0
  Reviews often place the L40 slightly behind high-spec rivals like MOVA’s P50 in raw specs but note that it can outperform Dreame’s pricier X40 in most real-world tests, so when it is substantially cheaper it is one of the smartest buys among top-tier robot vacuums, especially with updated pet-hair testing that now puts it near the very top for pet owners.
• Dried-On Stain Removal ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 5.0
  In dried-on stain testing the L40 scores well above average and even outperforms both Dreame’s X40 and popular rivals like the Bissell CrossWave on stubborn spots.
• Emptying & Mess Control ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 5.0
• Hard Floor — Large Debris Intake ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 5.0
  Testing finds the L40 easily picks up scattered debris and larger particles from hard floors, handling basic sweeping duties without leaving noticeable bits behind.
• Mop lifting system ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 5.0
  The L40’s mop pads automatically lift about 10.5 mm on carpets and can be detached with magnets, letting it vacuum rugs and mop hard floors in a single run without soaking carpets.
• Mopping performance ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 4.8
  The dual spinning pads, adjustable water control and mop-specific features give the L40 excellent overall mopping performance, especially when combined with its strong dried-stain removal results.
• Overall opinion ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 5 reviews 4.7
  Reviews position the L40 as a top-tier robot vacuum and mop combo with outstanding cleaning power, runtime and automation that now ranks near the very top of robot and pet-hair lists, though its industrial look, loud top power and finicky default pet-hair brush (fixable with the Tri-cut brush) and occasional dock squeaks are noted drawbacks.
• Battery & Charging ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 4.5
• Dirty water sensor ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.5
  The L40’s dirty-water sensing can detect when mop wash water is still very dirty and automatically trigger a second cleaning pass in those rooms, adding extra scrubbing only when needed.
• Edge & Baseboard Cleaning (Hard Floors) ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.5
• Suction & Airflow ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 4.4
• Obstacle Avoidance (Robot) ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 4.3
  Multiple tests show the L40’s camera and sensor system is significantly above average at recognizing and avoiding household objects, ranking near the top of obstacle-avoidance charts even if the X40 is slightly better.
• Price & Value ★ ★ ★ ★ ★ ★ ★ ★ ★ 4 reviews 4.0
• AI, Smart & App / Automation ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.0
• Carpet — Medium-Pile Pickup ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.0
  Carpet tests show the L40 is above average at lifting deeply embedded debris like sand from rugs, performing on par with the pricier X40 in deep-cleaning trials.
• Corner Cleaning (Robot) ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.0
  An automatically extending side brush helps the L40 reach into corners and along edges better than many standard fixed-brush robots, improving corner cleaning performance.
• Self-cleaning cycle ★ ★ ★ ★ ★ ★ ★ ★ ★ 1 review 4.0
  The base washes and hot-air dries the mop pads and uses a self-cleaning tray with squeegees to clear hair and debris from the bin, keeping maintenance low despite some reports of squeaky wash cycles.
• Pet-Ready Features ★ ★ ★ ★ ★ ★ ★ ★ ★ 2 reviews 3.8
  Recent reviews note that the L40’s stock brush tangles badly and struggles with carpeted pet hair, but pairing it with Dreame’s optional Tri-cut brush turns it into one of the best performers in new pet-hair tests, helping it rank near the very top of pet-hair lists and making it a strong pick for pet homes if you buy the upgrade.