The X50 Ultra Complete is the robot vacuum that climbs. Retractable legs lift it over thresholds and small steps that strand other robots between rooms.
What it does well
Climbs: ProLeap legs clear a 1.7-inch step, or up to 2.4 inches in combination.
Mops corners: a spinning mop swings out on an arm to reach edges and baseboards.
Long warranty: 3 years, versus 1 year on many rivals.
The honest catch
Deep cleans take a while and drain the battery, so big homes may need a mid-clean recharge. Carpet detection can be inconsistent, and cables still trip it up.
Verdict
The pick for homes with thresholds, small steps or lots of hard floor to mop. If you need to clean under very low furniture, the Roborock Saros 10 is thinner.