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If you're considering buying the iRobot Roomba to clean around the house, I know that it can get a bit confusing trying to decide which model to choose.
The 700-series is the latest line of Roombas. The top-of-the-line is the Roomba 790 and the 770 rounds out of the bottom of this series. I'll compare the Roomba 770 vs 780 vs 790 and highlight the differences between the three models.
