19,000Pa suction | AI HD and IR cameras | 75°C mop wash | EasyLeap 40 mm | 5,200mAh battery
Overview
The Dreame L40s Pro Ultra is a robot vacuum and mop with 19,000Pa suction and Pathfinder Smart Navigation, with an LDS laser, 3D dual-line laser sensors, AI HD and IR cameras and an LED light for dark areas on the robot. Its HyperStream Detangling DuoBrush has two anti-tangle brushes and the side brush extends. The mops stretch out up to 4 cm, lift 10.5 mm and stay on the base station when the robot only needs to vacuum, and EasyLeap lets it climb double-layer steps up to 40 mm and single-layer steps up to 22 mm.
The base station empties the robot, washes the mops with 75°C hot water, dries them with hot air, refills the robot’s water tank and adds cleaning solution automatically, and its clean water tank has a scale inhibitor; an optional water hookup kit (sold separately, only in some regions) adds automatic refilling and draining. The robot has a 5,200mAh battery, takes about 3.5 hours to charge and can charge off-peak; Dreame quotes 125 minutes of vacuuming and mopping in quiet mode. It works with Alexa, Siri and Google Home, and Dreame says built-in “OK, Dreame” voice control is coming in an update. Figures the UK manual doesn’t give come from Dreame’s UAE store page.
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Key Features
Pros & Cons
Pros
Cons
Setup & Installation
Place the base station somewhere as open as possible with a good Wi-Fi signal, leaving more than 5 cm on each side and more than 1 m in front; Dreame recommends a tile or marble floor so water can’t mark wood or carpet. Push the power cord firmly into the station until its indicator lights, fit the ramp extension plate and remove the robot’s protective pieces. Make sure the washboard filter is in place, fit the mop pad holders onto the robot and set the I/O switch on the back of the station to I. Fill the clean water tank with clean water, not hot water (Dreame says hot water can deform it), and add Dreame’s cleaning solution to the dispenser.
Hold the power button for 3 seconds to turn the robot on, then scan the QR code under the robot’s cover to get the Dreamehome app. In the app, tap “Scan QR code to connect”, scan the same code and follow the prompts. Only 2.4GHz Wi-Fi is supported; the Wi-Fi light under the cover blinks slowly when the robot is ready to connect.
Common Problems & Fixes
Running into issues? Our Dreame troubleshooting guide covers step-by-step fixes taken from Dreame’s own manuals and help centre, including won’t connect to Wi-Fi, auto-empty not working, mop washing problems.
Who Should Buy It
Anyone who wants a 75°C hot-water mop wash, AI HD and IR cameras and a robot that climbs 40 mm double-layer steps.
Verdict
The L40s Pro Ultra has 19,000Pa suction, a 75°C mop wash and EasyLeap for 40 mm double-layer steps. The L50s Pro Ultra has 30,000Pa suction and a 100°C wash.
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