Introduction
Dreame has launched two high-end models that compete directly with Roborock, one of the most established brands in the sector. The Dreame L10s Ultra Gen 3 and the Dreame L40 Ultra AE represent the brand's commitment to offering advanced technology at more competitive prices, whilst the Roborock Qrevo S5V positions itself as a reliable option with a more traditional approach. All three 2025 units feature a multifunction base that washes and dries the mops, which guarantees superior mopping quality compared to models with a simple base.
These robots are designed for users seeking complete automation of household maintenance. The main difference lies in suction power, navigation systems and some intelligent functions that can influence the user experience depending on the type of home and the specific needs of each household.
Power and Suction
Suction power is where the greatest difference between these three models can be seen. The Dreame L10s Ultra Gen 3 leads with 25,000 Pa, a figure that practically doubles the Roborock Qrevo S5V and its 12,000 Pa. The L40 Ultra AE sits at a midpoint with 19,000 Pa. In practice, this translates to greater capacity to vacuum embedded dirt in carpets or heavier debris such as sand or small stones.
The brushing systems also differ. The L10s Ultra Gen 3 features a SimpliCut brush, whilst the L40 Ultra AE incorporates the TriCut 3.0, which combines bristles with blades to cut tangled hair. The Qrevo S5V opts for the DuoDivide brush, which pushes hair towards the central suction gap to prevent tangles. The latter is especially useful in households with pets.
The extendable side brush of the L10s Ultra Gen 3 allows better sweeping of corners, something the other two models don't offer. However, the Qrevo S5V counters with an anti-tangle side brush, a feature that neither of the Dreame models includes. Only the L40 Ultra AE can raise its main brush during mopping, which prevents it from getting wet and improves process efficiency.
Mopping
All three robots use two rotating mops and can extend them to better reach edges. The L10s Ultra Gen 3 and the L40 Ultra AE feature Roboswing, a system that makes the robot perform a lateral movement to get the mop under furniture or overhangs. Mop lifting is practically identical: 10.5 mm on the Dreame models and 10 mm on the Qrevo S5V.
The great advantage of the L40 Ultra AE is its ability to detect dirt on both the mops and the floor. When it identifies dirtier areas, it automatically goes over them again until they're clean. This can make a difference in kitchens or high-traffic areas. Neither of the other two models includes this function.
The bases of all three wash the mops with hot water and dry them with hot air, which helps prevent bad odours and bacterial growth. The L10s Ultra Gen 3 stands out with third-generation tray self-cleaning, an evolution from the L40 Ultra AE's second generation. The Qrevo S5V doesn't include tray self-cleaning, which means more manual maintenance.
Navigation System
All three units feature a LiDAR turret to map the home and navigate efficiently. The L10s Ultra Gen 3 and the L40 Ultra AE incorporate a front 3D laser sensor to detect obstacles with greater precision. The Qrevo S5V does without this sensor, although it maintains obstacle avoidance capability.
The L40 Ultra AE is the only one with an AI camera, LED for night vision and remote access. It can recognise up to 120 different obstacles and allows you to monitor the home from your mobile. This is useful if you want to supervise pets or verify that everything is in order when you're not at home. The L10s Ultra Gen 3 and the Qrevo S5V recognise pets, but without a camera or remote access.
Regarding intelligent cleaning, the Dreame models use CleanGenius whilst the Qrevo S5V employs SmartPlan. Both systems adjust routes and power according to floor type and detected dirt.
Runtime and Battery
All three robots share a 5,200 mAh battery. The L10s Ultra Gen 3 offers 231 minutes of runtime, compared to the Qrevo S5V's 180 minutes. Runtime data for the L40 Ultra AE is not available, although the identical battery capacity suggests similar figures.
This runtime allows coverage of large homes without needing to recharge mid-cycle. The 51-minute difference between the L10s Ultra Gen 3 and the Qrevo S5V can be particularly noticeable in homes over 150 square metres or in cleaning sessions with multiple passes.
Intelligent Functions
All three models can overcome obstacles up to 20 mm in height, sufficient to navigate thick carpets or small level changes between rooms. All are compatible with external voice assistants such as Alexa or Google Home, which facilitates their integration into home automation ecosystems.
Multifunction Cleaning Base
The Dreame bases stand out for their larger capacity tanks. Both models include a 3.2-litre dust bag, 4.5-litre clean water tank and 4-litre dirty water tank. The Qrevo S5V has 2.7 litres for the bag, 4 litres of clean water and 3.5 litres of dirty water. This translates to greater autonomy between emptying and refilling.
The Dreame models incorporate a detergent tank that dispenses automatically during mop washing, something the Qrevo S5V doesn't offer. Additionally, both Dreame models allow the purchase of an optional kit for plumbing connection, although it must be bought separately and doesn't come integrated as standard.
The third-generation tray self-cleaning of the L10s Ultra Gen 3 represents an improvement over the L40 Ultra AE's second generation. The Qrevo S5V requires manual tray cleaning, which means more dedication from the user.
Dimensions
The Dreame L10s Ultra Gen 3 and the L40 Ultra AE are practically identical: 350 mm diameter and 97 mm height. The Qrevo S5V measures 353 mm diameter and 96.5 mm height. The difference is minimal and doesn't significantly affect the ability to pass under furniture.
The Dreame bases are 340 mm wide, 590 mm high (590.5 mm on the L40 Ultra AE) and 457 mm deep (456.7 mm on the L40 Ultra AE). The Qrevo S5V base is lower at 521 mm, but deeper at 487 mm. It's advisable to measure the available space before deciding, especially if you plan to place the base in a cupboard or specific recess.
Real-World User Experience
The Dreame L10s Ultra Gen 3 is ideal for large homes thanks to its high runtime of 231 minutes and suction power of 25,000 Pa. The extendable side brush improves sweeping in corners, something that's appreciated in homes with many nooks. The third-generation tray self-cleaning reduces maintenance to a minimum.
The L40 Ultra AE stands out for its intelligence. The AI camera with remote access allows you to monitor the home, whilst dirt detection on mops and floor guarantees more thorough mopping. The TriCut 3.0 brush reduces hair tangles, beneficial in households with pets. The main brush lifting during mopping optimises the process.
The Roborock Qrevo S5V relies on the reliability of an established brand. Its DuoDivide anti-tangle brush and anti-tangle side brush make it a solid option for those with pets. The 12,000 Pa power is sufficient for daily maintenance in medium-sized homes, although it may fall short on very thick carpets or embedded dirt.
The larger tanks on the Dreame models allow for more spaced-out maintenance. The detergent tank adds convenience by automatically dispensing product during mop washing. In practice, this means fewer manual interventions and greater system autonomy.
Conclusion: Which One to Choose?
Choose the Dreame L10s Ultra Gen 3 if you're looking for maximum suction power and runtime. It's perfect for large homes, especially with carpets or pets that shed a lot of hair. The extendable side brush improves corner sweeping and the third-generation tray self-cleaning minimises maintenance. Its price-to-performance ratio makes it a very competitive option.
Choose the Dreame L40 Ultra AE if you value artificial intelligence and automatic dirt detection. The camera with remote access adds surveillance functionality, useful if you have pets or want to monitor the home. Dirt detection on mops and floor guarantees deeper mopping in critical areas such as kitchens or bathrooms. The liftable main brush optimises the mopping process.
Choose the Roborock Qrevo S5V if you prefer a brand with an established track record and particularly value anti-tangle systems. Its DuoDivide and anti-tangle side brushes work very well with pets. It's suitable for medium-sized homes where 12,000 Pa of power is sufficient for daily maintenance. The lower base can make placement easier in tight spaces, although the greater depth requires more front space.
