iRobot's Roomba Combo j9 robot vacuum and mop is 600 off for Prime Day

Prime Day is back, meaning there are a ton of deals worth checking out on Amazon. Those who have been looking for a robot vacuum cleaner are in luck, as there are deals on several of iRobot's Roomba devices. The Combo j9, which also includes a mop function, has dropped to 800 for Prime Day. That's 800 off the regular price of 1,400 and it marks a return to a record low. This is our pick for the best robot vacuum and mop combo.