iRobot Roomba i4 vs iRobot Roomba J7+

  • Great for large rooms
  • Quiet operation
  • Comes with a 45 day auto emptying bag
  • Takes an hour to clean 400 square feet
  • Gets tangled in hair and requires manual service
  • Great for carpets
  • Doesn't do well on tile or hardwood floors
  • Requires mapping run after initial setup
  • Good value for the price
  • Five year experience with the IRobot 900

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