Dreame L40s Ultra AE Robot Vacuum vs Shark PowerDetect ThermaCharged Robot Vacuum & Mop

The Shark PowerDetect ThermaCharged is the better pick for most homes: it refills its own water tank, lifts the mop over carpets, and has a much larger owner base behind its rating. The Dreame L40s Ultra AE wins on raw suction and battery life, with 19,000Pa and up to 180 minutes per charge, and its TriCut brush is well liked for long hair. Both dock, wash and dry their mops with hot water and empty themselves. Owners of the Dreame praise obstacle avoidance and dog-hair pickup but note it can leave spots on stubborn kitchen stains.

• Choose the Dreame L40s Ultra AE if you have wall-to-wall carpet, heavy shedding, or long hair, and want the strongest suction and longest runtime.
• Choose the Shark PowerDetect ThermaCharged if you have a mix of hard floors and rugs and want a robot that refills its own water, lifts its mop over carpet, and needs the least handling.