Dreame L40 Ultra AE vs Mova S70 Roller

Introduction

The Dreame L40 Ultra AE and the Mova S70 Roller represent two advanced propositions within the ecosystem of robot vacuum cleaners with multifunctional base stations. The former arrives in 2025 as a consolidated model from Dreame, whilst the latter is introduced in 2026 under the Mova brand, which shares a manufacturer with Dreame but explores different technical solutions. Both are designed for users seeking complete automation in vacuuming and mopping, with bases that wash and dry the mops, ideal for medium or large-sized homes where manual maintenance proves impractical.

The most striking difference between these devices lies in their cleaning approaches: one opts for moderate suction power and advanced visual navigation technology, whilst the other prioritises brute vacuuming force and a mopping system with a roller instead of traditional rotating mops.

Power and Suction

The difference in suction power is considerable. The Mova S70 Roller reaches 28,000 Pa, compared to the 19,000 Pa of the Dreame L40 Ultra AE. This gap of nearly 10,000 Pa can be particularly noticeable on medium or long-pile carpets, and in picking up heavier debris such as sand or gravel. For homes with pets that shed heavily or with thick carpets, the Mova model offers a clear advantage in vacuuming capacity.

The brushing system presents interesting technical differences. The Dreame L40 Ultra AE features a TriCut 3.0 brush, which combines bristles with blades to reduce tangles from long hair, and can also lift during mopping to avoid dirtying wet floors. The Mova S70 Roller is equipped with a simple brush without this lifting capability, which means the main brush remains in contact with the floor even when mopping.

Regarding the side brush, the tables turn. The Mova S70 Roller incorporates side extension to better reach corners, lifting to avoid dragging dirt during mopping, and anti-tangle design. The Dreame L40 Ultra AE lacks these three functions on its side brush. In practice, this can translate into more effective edge sweeping by the Mova model.

Mopping

Here we find one of the most significant contrasts. The Dreame L40 Ultra AE employs two rotating mops with an extension system via Roboswing movement, which allows the robot to make a slight lateral movement to get the mops under furniture or overhangs. Additionally, it integrates dirt detection both on the mops themselves and on the floor, enabling it to identify areas requiring additional scrubbing or to rewash the mops if it detects they are very dirty.

The Mova S70 Roller adopts a completely different system: a 270 mm wide roller that covers more surface in one pass. It also features edge extension, but does not have dirt detection on either mops or floor. This approach may prove more effective on large, uniform surfaces, although it loses the ability to automatically adapt to difficult stains.

Mop lifting is slightly superior on the Mova S70 Roller, with 12 mm compared to the 10.5 mm of the Dreame. Both wash the mops with hot water in the base and dry them with hot air, ensuring hygiene and preventing bad odours. Neither automatically removes the mops at the base to perform vacuum-only tasks.

Navigation System

The Dreame L40 Ultra AE is equipped with a 3D LiDAR turret combined with an AI camera, enabling it to recognise up to 120 different types of obstacles. It includes specific pet recognition, remote camera access from your mobile and night vision LED. Its CleanGenius AI system adjusts cleaning according to floor type and detected dirt level.

The Mova S70 Roller uses CovertSense dToF navigation with a front 3D laser sensor, but without an AI camera. It does not offer pet recognition, remote camera access or night LED. Navigation is precise thanks to the laser, but it lacks the additional layer of visual intelligence that the camera provides on the Dreame model.

For homes with pets or many small objects on the floor, the Dreame L40 Ultra AE proves more versatile. The Mova S70 Roller is sufficient for tidy homes where basic laser navigation performs without issues.

Autonomy and Battery

Both robots feature 5,200 mAh batteries, so theoretical autonomy should be similar. However, the higher suction power of the Mova S70 Roller could consume more energy in maximum mode, although this data is not specified in the technical specifications. The robot's tanks also differ: the Dreame L40 Ultra AE carries a 395 ml dust bin and an 80 ml water tank, whilst the Mova S70 Roller reverses the proportion with 240 ml of dust and 150 ml of water. This suggests the Dreame prioritises longer vacuuming cycles without emptying, whilst the Mova opts for greater autonomy in continuous mopping.

Smart Functions

The ability to overcome obstacles is similar but slightly favourable to the Mova S70 Roller, which reaches 22 mm compared to the 20 mm of the Dreame L40 Ultra AE. Both can navigate thick cables, low thresholds and small level changes without problems. Neither incorporates a robotic arm nor its own voice assistant, although both are compatible with Alexa and Google Home.

Multifunctional Cleaning Base

Both bases offer dust auto-emptying, hot water washing and hot air drying of the mops. Both include self-cleaning of the washing tray, a function that reduces manual maintenance. The capacity of the dust bags is identical: 3.2 litres.

The main difference lies in the detergent tank. The Dreame L40 Ultra AE includes it as standard, allowing cleaning product to be added which is automatically dispensed during mop washing. The Mova S70 Roller does not have this tank. Additionally, the Dreame model offers an optional plumbing connection kit that is purchased separately, something the Mova does not contemplate.

Regarding water capacities, the Mova S70 Roller has slightly larger tanks: 5 litres of clean water and 4.5 litres of dirty water, compared to the 4.5 and 4 litres of the Dreame. The difference is minimal, but may translate into one or two additional cycles before manually refilling or emptying.

Dimensions

The diameter of both robots is identical: 350 mm. The height marks a relevant functional difference. The Mova S70 Roller measures 90 mm in height, whilst the Dreame L40 Ultra AE reaches 97 mm. Those additional 7 mm can be decisive for passing under certain low furniture, sofas or beds with little clearance from the floor. If your home has furniture with less than 10 cm of free height, the Mova has the advantage.

The bases present notable differences. The Dreame L40 Ultra AE measures 590.5 mm in height and 456.7 mm in depth. The Mova S70 Roller is considerably more compact: 503 mm in height and only 255 mm in depth. This represents significant space savings, especially in kitchens or utility rooms where every centimetre counts.

Real-World User Experience

For large homes with carpets and pets, the Mova S70 Roller offers greater brute vacuuming power and a more complete side brush. Its mopping roller covers more surface in one pass, which can reduce total cleaning time in large spaces. The smaller size of the base also facilitates its placement in confined spaces.

The Dreame L40 Ultra AE excels in homes with pets thanks to its AI camera and specific recognition, in addition to the TriCut 3.0 brush that reduces tangles. Dirt detection on mops and floor enables more intelligent mopping, going over problematic areas without manual intervention. The detergent tank in the base adds convenience for those seeking total automation. Its larger dust bin on the robot also reduces trips to the base during long vacuuming sessions.

If height under furniture is a limiting factor, the Mova S70 Roller has a clear advantage with its 90 mm. For users who value remote visual control and intelligent navigation with camera, the Dreame L40 Ultra AE proves more comprehensive.

Conclusion: Which to Choose?

Choose the Dreame L40 Ultra AE if you're looking for a robot with advanced artificial intelligence, pet recognition, remote camera access and automatic dirt detection on mops and floor. It's ideal for homes with pets, young children or many objects on the floor. The detergent tank in the base and the liftable TriCut 3.0 brush provide convenience and tangle reduction. Its larger dust bin on the robot also suits long sessions without interruptions.

Choose the Mova S70 Roller if you prioritise maximum suction power (28,000 Pa), a mopping system with a wide roller and a much more compact base. Its lower height (90 mm) allows it to pass under low furniture where other robots cannot reach. The extendable and liftable side brush improves corner sweeping. It's a solid option for large homes with hard floors, without the need for camera functions or advanced visual recognition.