Roborock S8 MaxV Ultra vs Dreame X50 Ultra: Previous Gen vs Current Flagship

Cleaning Performance

The suction gap here is dramatic: 20,000Pa (X50 Ultra) vs 10,000Pa (S8 MaxV Ultra). The X50 Ultra delivers exactly double the suction, and it shows. On carpet, the X50 Ultra extracts embedded dirt, fine dust, and pet hair that the S8 MaxV Ultra leaves behind. In testing, the X50 Ultra scores significantly higher on deep carpet cleaning.

The S8 MaxV Ultra compensates somewhat with its FlexiArm extending side brush, which sweeps along walls and into corners more effectively than standard round robots. The X50 Ultra doesn’t have an extending side brush, so the S8 MaxV Ultra actually edges ahead on wall-edge debris collection.

On hard floors, the gap narrows considerably. Both robots handle surface debris well, and 10,000Pa is more than sufficient for crumbs, dust, and hair on smooth surfaces. If your home is mostly hard floors, the S8 MaxV Ultra’s suction disadvantage matters less.

The S8 MaxV Ultra’s VibraRise 3.0 sonic mopping system uses 4,000 vibrations per minute for scrubbing, which is a different approach from the X50 Ultra’s spinning pads with 80°C hot water. Both are effective for daily maintenance mopping. The X50 Ultra’s hot water gives it an edge on stains.

Winner: Dreame X50 Ultra — Double the suction translates to significantly better carpet cleaning.

Navigation & Mobility

The Dreame X50 Ultra’s ProLeap retractable legs set it apart from any previous-gen robot, including the S8 MaxV Ultra. ProLeap physically lifts the robot over obstacles up to 6cm — door thresholds, carpet transitions, and floor obstacles that the S8 MaxV Ultra either bumps into or avoids.

The X50 Ultra’s VersaLift retractable LiDAR drops its profile to 3.5 inches for under-furniture cleaning. The S8 MaxV Ultra has a standard profile height and can’t match this reach.

For obstacle avoidance, the S8 MaxV Ultra uses Reactive AI 2.0 with 3D structured light and an RGB camera. It was class-leading when it launched and still handles most household obstacles competently — shoes, cables, and furniture legs. The X50 Ultra’s system is newer and slightly more accurate, but the S8 MaxV Ultra’s avoidance is still solid.

Both create accurate multi-floor maps and support room-specific settings. Roborock’s navigation software on the S8 MaxV Ultra is mature and reliable. Dreame’s has caught up and arguably surpassed it with the X50 Ultra’s more efficient path planning.

Winner: Dreame X50 Ultra — ProLeap and VersaLift provide a generational leap in mobility.

Dock & Maintenance

The S8 MaxV Ultra’s 8-in-1 RockDock Ultra handles auto-emptying, auto mop washing, heated-air drying, auto water refilling, auto detergent dispensing, self-cleaning, and optional refill-and-drainage system. When it launched, this was the most feature-rich dock available, and it’s still highly capable.

The X50 Ultra’s dock offers hot water mop washing, UV sterilization, hot-air drying, auto-emptying, and auto water refilling. The UV sterilization is a feature the S8 MaxV Ultra dock lacks. However, the S8 MaxV Ultra’s auto detergent dispensing is a feature the X50 Ultra dock doesn’t have.

For optional convenience, the S8 MaxV Ultra offers a Refill & Drainage system that connects directly to your home plumbing — eliminating water tank refills entirely. If available and installed, this is the most hands-off setup possible. The X50 Ultra doesn’t offer this option.

Day-to-day maintenance is minimal with both docks. Both handle the emptying, washing, and drying automatically. The S8 MaxV Ultra’s plumbing option and auto detergent give it a slight edge in total convenience.

Winner: Roborock S8 MaxV Ultra — Auto detergent, optional plumbing connection, and mature 8-in-1 dock design.

Smart Features & App

Both robots have polished app experiences. Roborock’s app is widely regarded as the most mature and responsive in the industry — multi-floor mapping, 3D room visualization, furniture recognition, room-specific settings, and scheduled cleaning are all smooth. The S8 MaxV Ultra benefits from years of Roborock app refinement.

The X50 Ultra uses Dreame’s app, which has improved significantly and now offers comparable features: multi-floor maps, room-specific settings, no-go zones, and cleaning schedules. However, some users find Roborock’s app more intuitive and stable.

The S8 MaxV Ultra offers video monitoring through its RGB camera — useful for checking on pets or your home while away. The X50 Ultra’s cameras are used for navigation only and don’t offer live viewing.

Both support Alexa and Google Home voice control. Neither has a significant smart home integration advantage.

Winner: Roborock S8 MaxV Ultra — More polished app experience and video monitoring capability.

Value & Price

This is the defining comparison. The S8 MaxV Ultra launched at $1,400-1,800 but now sells for $549-699 on frequent discounts — it’s been superseded by the Saros 10R and Saros Z70. The X50 Ultra launched at $1,699 and commonly sells for $899-999.

At their typical discounted prices ($649 vs $999), the X50 Ultra costs roughly 50% more. For that premium, you get double the suction, ProLeap mobility, VersaLift under-furniture reach, and newer technology. These are substantial upgrades.

But the S8 MaxV Ultra at $549-699 is arguably the best value in robot vacuums right now. You get FlexiArm edge cleaning, an 8-in-1 dock with auto detergent and optional plumbing, competent 10,000Pa suction, and Roborock’s excellent app — all at what used to be mid-range pricing. For hard-floor-dominant homes or budget-conscious buyers, it’s exceptional.

The X50 Ultra is the better robot. The S8 MaxV Ultra is the better deal. Your priority determines the winner.

Winner: Context-dependent — X50 Ultra if you want the best performance; S8 MaxV Ultra if you want the best deal. We give the overall edge to the X50 Ultra for its superior capability, but the S8 MaxV Ultra at deep discount is a phenomenal value.