Roborock S8 Pro Ultra vs Ecovacs Deebot X2 Omni

Both robots sit at the top of the consumer robot vacuum market — self-emptying, self-washing, self-refilling docks that require almost no daily intervention. The meaningful differences come down to three things: mop hygiene, robot shape, and runtime.

The Ecovacs X2 Omni's hot-water mop washing is a genuine differentiator. Heating rinse water to 55°C kills bacteria that survive a cold rinse. Roborock's dock uses room-temperature water, which dilutes soil but doesn't sanitize. For any household where floor hygiene matters — pets, toddlers, allergy sufferers — the X2 Omni's dock produces a cleaner mop between each room. The square body also means the robot physically reaches wall corners that round robots leave unswept. In a typical kitchen, that's the gap under cabinet toe-kicks and along baseboards.

The Roborock S8 Pro Ultra wins decisively on runtime. At 180 minutes versus 110 for the X2 Omni, it covers significantly more floor before returning to dock. For homes over 1,500 sq ft, the S8 Pro Ultra often finishes a complete clean without a recharge pause; the X2 Omni may trigger a mid-session return on large floor plans, which can leave uneven overlap patterns where cleaning resumed. Roborock's sonic mopping (3,000 oscillations per minute) is also highly effective at scrubbing dried residue — it works differently than the X2 Omni's rotary mop but produces comparable results on most messes.

On navigation, both use LiDAR for mapping with camera-assisted obstacle avoidance. The X2 Omni's AIVI 3D system uses an RGB camera to identify objects (cables, shoes, pet toys) and route around them. Roborock's structured-light system is effective but less reliable with flat or thin objects like power cables lying flat on the floor. If floor clutter is common, the X2 Omni's camera avoidance handles edge cases better.

The decision comes down to runtime and app control versus mop sanitation and corner reach. The S8 Pro Ultra delivers comparable vacuuming performance, superior runtime, and a more configurable app. The X2 Omni's strongest arguments are hot-water mop sanitation and corner-cleaning geometry. Choose the X2 Omni if you mop at least 3× per week and have corner-dense rooms; choose the S8 Pro Ultra for larger homes or if runtime matters more than mop hygiene.