Introduction
Roborock presents three distinct models that showcase the brand's evolution in robot vacuum technology. The Qrevo Curv S5X and S8 MaxV Ultra launched in 2024, whilst the Qrevo S5V arrived in 2025. All three feature multifunctional bases with mop washing and drying capabilities, though they target different user needs through varying levels of power and intelligent features.
The Qrevo Curv S5X stands out with exceptional suction power at 18,500 Pa, making it the most powerful option here. The S8 MaxV Ultra takes a different approach, prioritising advanced AI navigation with dual cameras and 73 recognised obstacles. The Qrevo S5V positions itself as a more streamlined option whilst maintaining core cleaning capabilities. Each model shares the same 5,200 mAh battery capacity and 180-minute autonomy, but their distinct features make them suitable for different household requirements.
Power and Suction
The suction power hierarchy reveals clear distinctions. The Qrevo Curv S5X delivers 18,500 Pa, substantially outperforming the Qrevo S5V at 12,000 Pa and the S8 MaxV Ultra at 10,000 Pa. This difference becomes particularly relevant in homes with deep-pile carpets or persistent dirt accumulation.
All three models employ the DuoDivide anti-tangle brush system, which channels hair towards the central suction point rather than wrapping around the roller. The S8 MaxV Ultra distinguishes itself with a liftable main brush, allowing it to raise the roller when mopping to prevent wet debris spreading.
Regarding side brushes, the Qrevo Curv S5X and S8 MaxV Ultra both feature extendable designs that reach further into corners. The Qrevo S5V lacks this extension but maintains good edge coverage. Anti-tangle side brushes appear on both Qrevo models, whilst the S8 MaxV Ultra uses a standard design. For homes with long-haired occupants or pets, these anti-tangle features reduce maintenance frequency considerably.
Mopping
All three models use rotating mop systems, though implementation varies. The Qrevo Curv S5X and Qrevo S5V employ dual rotating mops with full extension for edge cleaning, pushing the mops outward to reach skirting boards more effectively. The S8 MaxV Ultra combines a vibratory mop with a mini lateral mop for edge work, representing a different mechanical approach.
Mop elevation differs meaningfully between models. The Qrevo variants lift their mops 10 mm when encountering carpets or rugs, whilst the S8 MaxV Ultra achieves 20 mm elevation. This additional height helps protect thicker rugs and reduces the need to set up no-mop zones for medium-pile carpeting.
Dirt detection technology appears on the Qrevo Curv S5X and S8 MaxV Ultra, enabling these models to identify soiled areas on floors and dirty mops, triggering additional cleaning passes or mop washing cycles. The Qrevo S5V completes its mopping routine without this adaptive behaviour, following predetermined patterns instead.
All three bases wash mops with cold water and dry them using warm air to prevent odours. The Qrevo Curv S5X introduces a 2.0 self-cleaning tray that automatically cleans the washing area itself, reducing manual maintenance. The other two models require occasional manual cleaning of the washing tray.
Navigation System
Each model uses LiDAR-based navigation for room mapping and route planning. The crucial difference lies in obstacle detection capabilities. The S8 MaxV Ultra incorporates dual AI cameras alongside a 3D laser sensor, enabling it to recognise 73 different obstacle types. This includes pet recognition, allowing the robot to identify animals and adjust its approach accordingly.
The Qrevo Curv S5X and Qrevo S5V rely on obstacle avoidance without camera-based identification. They detect objects and navigate around them but don't classify what those objects are. This works well for general navigation but lacks the nuanced behaviour that camera systems provide around delicate items or pets.
Remote camera access distinguishes the S8 MaxV Ultra further, allowing users to view live footage through the app. LED night vision supports this feature in low-light conditions. Neither Qrevo model offers camera access, focusing instead on sensor-based navigation.
All three models feature SmartPlan AI for intelligent cleaning routines, though the S8 MaxV Ultra adds AI-based stain recognition to target visible marks automatically. Processing power differs too, with the Qrevo Curv S5X and S8 MaxV Ultra both running RR Mason 11.0 algorithms.
Battery and Autonomy
Battery specifications remain consistent across all three models: 5,200 mAh capacity providing 180 minutes of runtime. This uniformity means autonomy differences arise from power consumption rather than battery size. The Qrevo Curv S5X, despite its higher suction power, maintains the same runtime through efficient motor management.
In practice, 180 minutes proves sufficient for most homes, allowing complete cleaning cycles without mid-session recharging. The robots return to base when battery levels drop, recharge, and resume cleaning where they left off if needed.
Intelligent Functions
All three models climb obstacles up to 20 mm height, managing door thresholds and thick rug edges without assistance. This capability prevents the robots getting stuck on common household transitions.
Voice assistant integration varies. The S8 MaxV Ultra includes its own built-in voice assistant alongside compatibility with external services like Alexa and Google Home. The Qrevo Curv S5X and Qrevo S5V support external voice assistants but lack proprietary voice control. This means the S8 MaxV Ultra responds to commands even without internet connectivity or third-party devices.
Multifunctional Base
Each base automatically empties the dust container, washes mops with cold water, and dries them using warm air. Dust bag capacity differs slightly: the Qrevo Curv S5X and S8 MaxV Ultra use 2.5-litre bags, whilst the Qrevo S5V employs a 2.7-litre bag. This marginal difference translates to perhaps one additional week between bag changes on the S5V.
Clean water tanks hold 4 litres across all models. Dirty water capacity varies: 3 litres for the Qrevo Curv S5X, and 3.5 litres for both the Qrevo S5V and S8 MaxV Ultra. Larger dirty water tanks reduce emptying frequency during extended mopping sessions.
Only the S8 MaxV Ultra includes a detergent dispenser, automatically adding cleaning solution during mop washing. The Qrevo models wash mops with water alone, though users can manually add detergent to the clean water tank if desired.
The Qrevo Curv S5X's 2.0 self-cleaning tray represents a genuine maintenance reduction, automatically cleaning the area where mops are washed. This prevents residue build-up that would otherwise require manual scrubbing every few weeks.
Dimensions
Robot height influences under-furniture access. The Qrevo S5V measures 96.5 mm tall, making it the lowest profile here. The Qrevo Curv S5X stands 98 mm high, whilst the S8 MaxV Ultra reaches 103 mm. That 6.5 mm difference between the shortest and tallest can determine whether a robot fits beneath certain sofas or bed frames.
Diameter remains nearly identical: 352-353 mm across all models. This consistency means they navigate similar spaces equally well.
Base dimensions vary considerably, affecting placement options. The Qrevo S5V base measures 340 mm wide, 521 mm tall, and 487 mm deep – a relatively compact footprint despite its height. The Qrevo Curv S5X uses a square 450 mm × 450 mm × 450 mm design. The S8 MaxV Ultra sits between these at 409 mm wide, 470 mm tall, and 419 mm deep. Consider available floor space when choosing, as these bases remain permanently positioned.
Real-world Experience
For homes with multiple carpets and rugs, the Qrevo Curv S5X's exceptional 18,500 Pa suction extracts embedded dirt more effectively. Its extendable side brush and anti-tangle design suit households with pets, reducing hair maintenance whilst improving corner coverage. The 2.0 self-cleaning tray minimises hands-on upkeep.
The S8 MaxV Ultra excels in complex environments with varied obstacles. Its dual cameras and 73-object recognition navigate around toys, cables, and pet bowls with greater precision. The 20 mm mop lift protects thicker rugs better than the 10 mm elevation on Qrevo models. Pet owners benefit from recognition features that adjust behaviour around animals. The built-in voice assistant and remote camera access add convenience for tech-focused users.
The Qrevo S5V delivers core functionality at a more accessible level. Its 12,000 Pa suction handles hard floors and low-pile carpets competently. The dual rotating mops with edge extension clean effectively, though without dirt detection to trigger additional passes. The slightly larger dirty water tank and dust bag suit regular use, whilst the compact base fits tighter spaces. This model works well for straightforward floor plans without complex obstacle scenarios.
All three models share 180-minute autonomy, making them suitable for larger homes requiring extended cleaning sessions. The 96.5-97 mm height on Qrevo models helps them access low-clearance furniture more reliably than the 103 mm S8 MaxV Ultra.
Conclusion: Which to Choose?
Choose the Roborock Qrevo Curv S5X if maximum suction power matters most to your household. The 18,500 Pa performance tackles deep carpets and stubborn dirt more aggressively than alternatives. The extendable side brush improves corner cleaning, whilst anti-tangle features reduce maintenance for homes with long hair or shedding pets. The 2.0 self-cleaning tray cuts down manual base maintenance significantly. This model suits users wanting powerful cleaning with minimal intervention, particularly in homes with varied flooring types.
Choose the Roborock Qrevo S5V if you need reliable cleaning performance in a more compact base format. The 12,000 Pa suction proves sufficient for most hard floors and standard carpets. The dual rotating mops with edge extension handle mopping duties well, though without adaptive dirt detection. The slightly larger dirty water tank and dust bag extend maintenance intervals marginally. At 96.5 mm height, it accesses low furniture most effectively. This option works for straightforward homes without complex obstacle courses or thick carpeting.
Choose the Roborock S8 MaxV Ultra if advanced navigation and AI features align with your priorities. The dual cameras and 73-object recognition navigate complex environments with greater sophistication, whilst pet recognition adjusts behaviour around animals. The 20 mm mop lift protects thicker rugs more effectively. Remote camera access and built-in voice assistant add convenience. The detergent dispenser automates cleaning solution use. This model suits tech-enthusiastic households with pets, varied obstacles, or users wanting comprehensive smart home integration despite its slightly taller profile limiting under-furniture access compared to Qrevo models.
