iRobot's Roomba j7 is $250 off, plus the rest of the week's best tech deals

A bunch of new tech sales cropped up at the start of the week for things like robot vacuums, game controllers and more, and many of them are still around today. A trio of iRobot devices remain discounted, with the most affordable of the bunch coming in at $179. Some of Amazon's Fire tablets are up to 50 percent off, while Xbox's Elite Wireless Series 2 controller is back down to $140. Here are the best tech deals from this week that you can still get today. The new Roomba j7 is $250 off right now and down to $599 at both Amazon and Wellbots. The higher-end Roomba s9 is also $250 and down to $850.