Measure the doorway before comparing the robot
For a home with raised transitions and low furniture, a cleaning robot must first reach the area you want it to clean. Start with the height, shape and spacing of the actual thresholds and the lowest point of the furniture opening. A headline climbing height cannot describe all of those conditions.
This comparison covers the standard US Roborock Saros 20 and the US Dreame X60 Max Ultra Complete kit. It excludes similarly named Sonic, Flow, Pro, Master and accessory-bundle alternatives. The recommendations combine explicit manufacturer conditions with attributed independent comparisons; neither robot was tested in your home or by TechInsightReviews.
For two-stage thresholds and surface cleaning priorities
Give Saros 20 particular attention when your measured transition resembles the geometry Roborock actually describes. Its stated combined two-layer height depends on separate limits for the first and second steps and a specified gap between them. It should not be read as permission to treat any single obstacle of the combined height as passable. Roborock's threshold conditions
Record each part of the transition and compare it with the current instructions. Rounded edges, slopes, surrounding flooring and the approach route can make a real opening different from a product-page example. If the fit is close, seek an appropriate demonstration or a trial with clear return terms rather than relying on the largest printed number.
For cleaning after access is established, RTINGS' public comparison favors Saros 20 for hard-floor cleaning and carpet pet hair under its Methodology v1.0 tests. That is a useful outside observation to consider with the surfaces you have. It is not a result measured in your room, and some underlying detail is membership-gated. RTINGS' comparison and scope
For a route often interrupted by household clutter
Give X60 Max Ultra Complete particular attention when obstacle navigation is the repeated problem you want to solve. The same RTINGS public comparison describes more reliable clutter navigation for the Dreame in its tested scenarios. That is a more relevant starting point than comparing two manufacturers' counts of recognizable object types. Independent head-to-head summary
Retain the limits of that observation. A test set cannot establish recognition of every cable, toy or pet-related object in a different home. Clear items that should not be contacted and evaluate the actual route before relying on an unattended schedule. An avoidance advantage in a particular test is not a guarantee that preparation becomes unnecessary.
Dreame also advertises a slim body and threshold-crossing functions for the US Max configuration. Check those model-specific descriptions and conditions rather than borrowing specifications from an X60 version sold in another region. Dreame US model page
For furniture openings near the advertised limit
Both makers describe access associated with a 3.13-inch low profile, but an advertised body or clearance figure does not measure the space under your sofa. Check the whole entrance and the route underneath, including a sagging fabric panel or a lower support that changes the opening.
The useful buying question is whether the robot can enter, work and leave the actual area. Merely clearing the first edge does not complete that task. If the gap is marginal or the surrounding threshold does not match the stated conditions, keep the current arrangement until a practical check establishes that the replacement solves the problem.
Apply the same care to carpet features. Roborock's described carpet behavior includes setting and pile-related conditions. Verify the relevant app options and the carpet you own, rather than assuming a mobility feature automatically establishes effective cleaning of every rug. Roborock's stated setup conditions
When a larger suction number will not answer the question
This research found conflicting X60 suction figures across US product and review sources. We do not use that disputed number to choose a winner. Even a consistent maximum would not directly measure how the robot handles your debris, mops your floor or navigates the doorway. The conditional geometry and relevant test observations are more useful for this particular task.
Keep your present robot if it already reaches the important areas and completes the cleaning you need. Also keep the floor-to-floor problem separate: these advertised systems address thresholds and furniture access, not autonomous stair climbing. Do not buy either model expecting it to move itself between floors by using stairs.
Before ordering, confirm the exact standard Saros 20 or US X60 Max Ultra Complete package, dock placement, current care instructions and local seller terms. A more capable mechanism only becomes a worthwhile purchase when it addresses an obstacle or cleaning requirement you have actually identified.