bObsweep UltraVision · Dreame X30 Ultra

The dock takes care of dust for up to 180 days; the mop is a cloth you wash yourself.

List price is $929 at bObsweep, yet retailer sales have sold the same model for $299, so the price paid depends almost entirely on timing.

MopExtend improves edge and corner coverage on the robot’s own detection, and the reach it adds is 4 cm, not a room’s worth. It is a mount that swings within the machine’s footprint, not an arm that extends past it.

Automatic pad detach and in-place washing remove the weekly mop chore. The price is a base station 23.2 inches tall on a 13.4 by 18 inch footprint that has to stay put beside an outlet.

Homes with shag or deep high-pile rugs

bObsweep's own manual says the brush is not suitable for shag, and no published figure covers other high-pile carpet.

Households that want a mop washed and dried by the dock

The mop is a clip-on microfiber cloth with no rotation, no low-water alert and no washing station; owners wash the cloths by hand.

Long-haired households wanting no brush maintenance

Best Buy owners report hair wrapping the brush roll and weekly manual clearing, since the brush has no self-cutting feature.

Networks that broadcast only 5 GHz Wi-Fi

The owner's manual requires a 2.4 GHz connection to reach the app, maps and schedules.

Homes with sunken showers or step-downs left open

One Best Buy owner watched it fall into a shower well on its second run, and the manual warns it may stall on ledges.

Homes above roughly 2,600 sq ft of continuous floor

Dreame states 243 m2, about 2,615 sq ft, on a single charge. Larger continuous layouts mean the robot recharges partway through and resumes, which lengthens the job rather than stopping it.

Owners wanting minimal dock footprint

The base station measures 13.4 by 18 inches on the floor and stands 23.2 inches tall, so it needs a permanent position against a wall beside an outlet rather than a cabinet slot.

Wi-Fi 5 GHz-only networks or band-locked systems

2.4 GHz is required to provision the robot and reach it from the app; without it there is no pairing, no scheduling and no multi-floor map management. The mechanical behaviors, MopExtend and the carpet pad handling, run on onboard detection and are unaffected by connectivity.

Budget-focused buyers

Street pricing $799-999 seats X30 Ultra in mid-to-premium range. Older Dreame models (L10s Ultra) deliver sealed-floor capability at $549-699 with lower arm-maintenance overhead.

Owners expecting a reaching arm

MopExtend is a mop mount that swings out 4 cm (1.57 in) within the robot's own footprint on edge detection. It does not extend into spaces the robot cannot drive to, and it plays no part in carpet coverage.