Airflow Accelerator: The accelerator brings the vacuum power right down to the floor surface, creating a sealed channel that concentrates the airflow, drawing in more debris. High-Efficiency Vacuum: A compact and efficient high-powered motor provides a five times improvement in air power than previous Roomba generations. XLife Battery: Twice as many cleaning cycles as previous Roomba batteries. Resume along with Carpet Boost: These are additional features in the 900-series models. The 760, 770, and 780 models have the dual-HEPA filters that capture dust particles as fine as 0.
The 770 and 780 models have the Dirt Detect Series 2 technology that uses optical sensors to detect dirt and debris in addition to acoustic sensors used in the other models. The 770 and 780 models have a Full Bin Indicator. The 780 model has a Touchpad Control as opposed to Buttons in the other models. Faster charging compared to the previous model that has charging time of 7 hours. Allows quick cleanup of spills and concentrated masses. Allows blocking off specific areas within a room. Lighthouse vs Virtual Wall Technology: Virtual wall technology allows Roomba to block off areas and lighthouse allows Roomba to navigate between rooms thereby allowing cleaning of multiple rooms efficiently.