iRobot Roomba Max 875 Combo + AutoWash Dock vs iRobot Roomba Plus 678 Combo + AutoWash Dock

Quick take: The iRobot Roomba Plus 678 Combo + AutoWash Dock costs $300 less; the iRobot Roomba Max 875 Combo + AutoWash Dock has stronger suction (35,000 vs 30,000 Pa).

SpeciRobot Roomba Max 875 Combo + AutoWash DockiRobot Roomba Plus 678 Combo + AutoWash Dock
Price~$1,200~$900
TypeRobot Vacuum & MopRobot Vacuum & Mop
Suction35000 Pa30000 Pa
Battery——
NavigationLiDAR + CameraLiDAR + Camera
Filtration——
CordlessYesYes
Bagged——
Noise——
Dustbin——
Water tank——
Self-empty dockYesYes
Auto mop washingYesYes
Hot water washingYesYes
Obstacle avoidanceYesYes
Carpet detectionYesYes
Auto mop liftingYesYes
Multi-floor mappingNoNo
App controlYesYes
Dimensions14.17 x 14.02 x 3.93 in13.9 x 13.9 x 3.9 in
Weight12.01 lbs10.69 lbs
Warranty——

Pros & cons

iRobot Roomba Max 875 Combo + AutoWash Dock

  • ✓35,000 Pa suction, as announced at launch
  • ✓Dual-line LiDAR plus AI camera
  • ✓Heated water to the roller and ThermaMist heated spray
  • ✓DriLift shield lifts the roller on carpet
  • ✓5,000 mAh battery
  • ✗Heavy at 12.01 lb
  • ✗$1,199.99 with no discount
  • ✗$400 more than the Max 775 Combo
  • ✗Runtime, bin, tank, noise and warranty are not published

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