Introduction
Within Roborock's 2025 catalogue, we find two proposals that, although they share the same brand and suction power, are designed for users with very different needs. The Roborock QV 35A arrives as a mid-to-high-range model equipped with a complete multifunction base, whilst the Roborock Q7 L5+ or BF+ Plus presents itself as a more basic alternative with a self-emptying base but without mop washing functions.
Both units maintain Roborock's characteristic reliability, but the QV 35A clearly opts for more advanced mopping and greater autonomy. The Q7 L5+ or BF+ Plus, on the other hand, is more compact and straightforward in its approach. The choice between one or the other will depend on how much weight you give to mopping and autonomous maintenance management.
Power and Suction
Both models match their suction power at 8,000 Pa, a competitive figure that guarantees good results on both hard floors and medium-pile carpets. However, the differences appear in the brushing system.
The Roborock QV 35A features a simple anti-tangle main brush, designed to minimise long hair tangles, something that in practice is especially appreciated if you live with pets or people with long hair. The Q7 L5+ or BF+ Plus uses a conventional bristle brush, more traditional but also more prone to accumulating hair and requiring frequent manual cleaning.
As for the side brush, only the QV 35A incorporates anti-tangle technology, which reduces maintenance and improves efficiency in corners and edges. Neither has an extendable or liftable side brush, so performance in corners will be similar on both, although the QV 35A has the advantage of avoiding tangles.
For homes with pets or where hair is a recurring problem, the QV 35A's configuration makes a clear difference in ease of use.
Mopping
Here we find the most important difference in this comparison. The Roborock QV 35A features a system of two rotating mops that can also lift 10 mm when the robot detects carpets or rugs. This prevents unwanted surfaces from getting wet and allows vacuuming and mopping to be combined in a single pass without worries.
The Q7 L5+ or BF+ Plus, on the other hand, settles for a static mop that drags across the floor without lifting capability. This limits its use in mixed dwellings with carpets, as you'll have to remove the mop manually if you don't want to dampen them.
The QV 35A's base washes the mops with cold water after each session and dries them with cold air, which keeps the mops clean and prevents bad odours. This functionality makes mopping truly autonomous: the robot returns to the base during cleaning, washes the mops and continues mopping with clean mops. When finished, it washes them again and dries them.
The Q7 L5+ or BF+ Plus lacks these functions. Its base only handles self-emptying of dust, so you'll have to wash the mops by hand after each use. For those seeking effective mopping without intervention, the difference is enormous.
Neither includes mop extension for edges, dirt detection nor automatic mop removal at the base. Both mop with cold water from the robot's tank.
Navigation System
Both robots use a 3D LiDAR turret to map the home and plan efficient routes. Laser navigation guarantees precision and allows detailed maps to be created with multiple floors.
The Roborock QV 35A's advantage lies in its obstacle avoidance system and its SmartPlan 1.0 function, which intelligently adjusts cleaning according to the characteristics of each room. The Q7 L5+ or BF+ Plus doesn't have obstacle avoidance, which may result in the occasional jam with cables, slippers or small toys.
Neither incorporates an AI front camera, additional 3D laser sensor, pet recognition, curtain detection, front LED nor remote camera access. Navigation is purely laser-based, without additional layers of visual intelligence.
Autonomy and Battery
The Roborock QV 35A has a 5,200 mAh battery that allows it to reach 180 minutes of autonomy in standard mode. This translates into the capacity to clean large homes without the need for intermediate recharges.
The Q7 L5+ or BF+ Plus features a 3,200 mAh battery. Although we don't have the exact autonomy figure, the capacity difference suggests a clearly lower duration, probably sufficient for medium-sized flats but tight for large houses.
In practice, if your home exceeds 100 m², the QV 35A offers greater peace of mind. The Q7 L5+ or BF+ Plus may need to return to the base to recharge mid-clean if the surface area is large or if you use high power modes.
Smart Functions
Both models can overcome obstacles up to 20 mm in height, sufficient to clear most door profiles and small level changes between rooms.
Both are compatible with external voice assistants such as Alexa or Google Home, allowing basic voice control. Neither incorporates a robotic arm nor its own voice assistant.
Multifunction Cleaning Base
The Roborock QV 35A's base is fully multifunction: self-emptying of the dust container into a 2.7-litre bag, mop washing with cold water and drying with cold air. Additionally, it incorporates 4-litre clean water and 3.5-litre dirty water tanks, which guarantees several weeks of autonomy without manually refilling or emptying.
The Q7 L5+ or BF+ Plus base is limited to self-emptying dust into a 2.7-litre bag as well. It doesn't wash or dry mops, nor does it have water tanks. It's a simple base that reduces dust maintenance, but nothing more.
Neither base includes tray self-cleaning, UV disinfection, detergent tank, plumbing connection kit nor integrated plumbing connection.
If you're looking for total convenience and effective mopping, the QV 35A's base justifies the price difference on its own. The Q7 L5+ or BF+ Plus saves you space and simplifies installation, but requires more manual intervention.
Dimensions
The Roborock Q7 L5+ or BF+ Plus measures 325 mm in diameter and 99 mm high, compared to the QV 35A's 353 mm diameter and 96.5 mm height. The Q7 L5+ or BF+ Plus is slightly more compact in footprint but somewhat taller, which may matter if you have very low furniture. The QV 35A, at 96.5 mm, has the advantage for passing under low sofas or beds.
The most notable difference is in the bases. The QV 35A's occupies 340 mm width, 521 mm height and 487 mm depth, dimensions typical of a multifunction station with water tanks and washing system. The Q7 L5+ or BF+ Plus base measures only 212 mm width, 259 mm height and 178 mm depth, much more discreet and easier to place in confined spaces.
If space at home is limited, the Q7 L5+ or BF+ Plus base is much more practical. If you have room and value functionality, the size of the QV 35A's base ceases to be a drawback.
Real-World User Experience
The Roborock QV 35A is designed for users who want to forget about maintenance for weeks. Its 5,200 mAh battery and 180 minutes of autonomy make it suitable for large homes, whilst its multifunction base ensures that both dust and mops are managed automatically. The two rotating mops system with lift allows it to be used in homes with carpets without worries.
The anti-tangle main brush and anti-tangle side brush make it an especially interesting option for homes with pets. In practice, this translates into less time spent untangling hair and more time without touching the robot.
The Roborock Q7 L5+ or BF+ Plus is better suited to small or medium-sized flats where mopping isn't a priority. Its compact base makes it easy to position in confined spaces, and dust self-emptying reduces basic maintenance. However, you'll have to wash the mops by hand and be more mindful of the battery if the surface area is large.
For those seeking a simple, reliable robot without complications, the Q7 L5+ or BF+ Plus performs well. But if you value effective mopping and total autonomy, the QV 35A is in another league.
Conclusion: Which to Choose?
Choose the Roborock QV 35A if you're looking for a complete robot with effective mopping, a multifunction base that washes and dries the mops, and sufficient autonomy for large houses. It's ideal for homes with pets thanks to its anti-tangle brushes, and for those who want to forget about maintenance for weeks. Also if you have carpets and need the mops to lift automatically.
Choose the Roborock Q7 L5+ or BF+ Plus if you live in a small or medium-sized flat, space for the base is limited, and you don't give as much importance to mopping. It's a more economical and straightforward option, perfect if you prefer a robot without complications and are willing to wash the mops manually. Also if you're looking for a compact and no-nonsense model, without extra functions you won't use.
