The Dreame X50 Ultra fits under a bed height of 9.1 cm when the retractable DToF sensor is fully lowered. In this mode, the height of the X50 Ultra is only 89 mm, so it can theoretically navigate under furniture with a height of 91 mm. However, the clearance is very small at only 2 mm, which may sometimes not work reliably in practice, especially on uneven floors or slightly lowered furniture edges. Therefore, before activating VersaLift navigation, please ensure that the underside and edges of the furniture are free of unevenness.