iRobot Roomba i3 vs Shark ION Robot AV753 Series

The iRobot Roomba i3 is better than the Shark ION Robot AV753 Series. The iRobot feels better built, has fewer parts requiring regular maintenance, comes with an allergen-trapping HEPA filter, maneuvers itself more effectively, and performs better on all surface types. It also has a far more advanced suite of automation features, most notably its self-emptying feature, which allows it to dump any accumulated debris into a larger dirtbin built onto its charging dock. It's also capable of resuming an in-progress cleaning session after returning to its dock to recharge. Conversely, the Shark is easier to store, incurs lower recurring costs, and has a much longer battery life, though the iRobot charges a lot faster.