Ending today, Groupon offers the refurbished iRobot Roomba 650 Robotic Vacuum Cleaner in White, model no. R650020, for $229.99 with free shipping. That's tied with our December refurb mention as the lowest we've seen in any condition. (It's $70 under the best we could find for a new one today.) This 3.6"-tall vacuum features a 3-stage cleaning system, iAdapt Navigation, virtual wall technology, object avoidance, 10-1/2" cleaning path, and on-board scheduling.

No warranty information is provided.