iRobot Roomba Max 775 Combo + AutoWash Dock vs iRobot Roomba Plus 678 Combo + AutoWash Dock

Quick take: The iRobot Roomba Max 775 Combo + AutoWash Dock costs $100 less.

SpeciRobot Roomba Max 775 Combo + AutoWash DockiRobot Roomba Plus 678 Combo + AutoWash Dock
Price~$800~$900
TypeRobot Vacuum & MopRobot Vacuum & Mop
Suction—30000 Pa
Battery——
NavigationLiDAR + CameraLiDAR + Camera
Filtration——
CordlessYesYes
Bagged——
Noise——
Dustbin——
Water tank——
Self-empty dockYesYes
Auto mop washingYesYes
Hot water washingNoYes
Obstacle avoidanceYesYes
Carpet detectionNoYes
Auto mop liftingNoYes
Multi-floor mappingNoNo
App controlYesYes
Dimensions14.7 x 14.4 x 4.1 in13.9 x 13.9 x 3.9 in
Weight12.79 lbs10.69 lbs
Warranty——

Pros & cons

iRobot Roomba Max 775 Combo + AutoWash Dock

  • ✓LiDAR mapping with AI camera avoidance
  • ✓Heated spot mopping
  • ✓6,000 mAh LFP battery
  • ✓Auto-empty and mop-washing dock
  • ✓$200 off the list price every day
  • ✗4.1 in height and 12.79 lb weight
  • ✗Suction, runtime, noise, warranty, hot-water dock washing, carpet detection and mop lifting are not published
  • ✗$100 more than the Roomba Plus 575 Combo, which lists heated pad washing

iRobot Roomba Plus 678 Combo + AutoWash Dock

  • ✓Roller mop fed with 140°F water at 15 N downforce
  • ✓SprayForce pre-treat for dried spills
  • ✓Dual-line LiDAR and AI camera
  • ✓Mop lifts automatically on carpet
  • ✓Large 6,000 mAh lithium iron phosphate pack
  • ✗The 40,000 Pa figure is spray pressure, easy to misread as suction
  • ✗Full $899.99 list price
  • ✗Runtime, bin size, noise and warranty are not published