iRobot Roomba vs LG

Which brand to buy

Both brands sell docks that empty the dirt for you, which is about all they share. LG's docks are towers for its CordZero cordless sticks; iRobot's are self-emptying bases for Roombas. LG makes no robots in this lineup, and iRobot makes no sticks, so the choice is between a stick you push and a robot you schedule.

LG's self-emptying sticks start with the LG CordZero All-in-One A931KWM at $600. Owners praise its suction and the dust-free emptying, but report 14 to 20 minutes at full power and debris sticking in the dock. The LG CordZero All-in-One A949KTMS at $1,000 ships with two swappable batteries, which owners say ends runtime worries, though its mop attachment disappoints. The LG CordZero Q3 at $299 skips the tower; owners like its washable parts and say it does not deep-clean carpet.

iRobot's self-emptying range starts with the Roomba 105 Vac, which owners value for LiDAR mapping but testers fault on pet hair. The iRobot Roomba Max 705 Vac and iRobot Roomba j9+ earned owner praise for rubber extractors that handle pet hair without tangling, with app and firmware glitches the recurring complaint on the Max; both are now discontinued in favor of the Roomba Max 715 Vac + AutoEmpty Dock at $500.

Look at iRobot first if you want daily maintenance without effort. LG makes more sense if you need a vacuum for stairs, upholstery and spot cleanups, and want the bin emptied for you.

iRobot Roomba vs LG: common questions