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Which robot vacuums climb the highest door sills?

Door-sill (threshold) ratings, robot by robot.

Updated Oct 11, 2026. Makers’ own figures.

The Roborock Saros 20 has the highest ratings of the robots we track: 1.77 in for a single sill and 3.46 in for two stacked sills. Next come the Dreame X50 Ultra, at 1.65 in single and 2.36 in over two steps, and the Roborock Saros 10R at 1.57 in. Five of the eleven are rated between 0.79 and 0.87 in.

Single sillSill heightTwo stepsTotalheight
Measure from the floor to the top of the sill, on the lower side. With a strip or a second step on top, compare the total height with the two-step rating.
RobotSingle sillTwo steps or stacked
Roborock Saros 201.77 in3.46 intwo stacked sills
Dreame X50 Ultra1.65 in (42 mm)2.36 in (60 mm)two steps more than 4 cm apart
Roborock Saros 10R1.57 in (40 mm)1.57 in (40 mm)two-step sills
eufy Omni S21.38 in1.65 intwo stacked sills
Roborock Saros 101.18 in (30 mm)1.57 in (40 mm)a 3 cm sill with a 1 cm track on top
MOVA P10 Pro Ultra0.87 in (22 mm)Not published
Dreame L40 Ultra0.86 in (22 mm)Not published
Dreame D30 Ultra0.79 inNot published
Roborock QV 35A0.79 inNot published
eufy Omni S1 Pro0.79 in (20 mm)eufy calls it obstacle clearance heightNot published
Narwal Freo Z10 TurboNot publishedNot published

All 11 are sold in the US and were FCC-authorized before the July 28, 2026 rule.

Makers measure differently

Dreame’s two-step figure assumes steps more than 4 cm apart, and Roborock says results vary with conditions.

Find a robot for high sillsSee all five in the robot finder

Sources