Shark ION Robot Vacuum vs iRobot Roomba 105 Combo

The Roomba 105 Combo is the more capable machine: it vacuums and mops, empties itself into a dock for up to 75 days, maps with LiDAR, and sets no-go zones and room schedules in the app. The Shark ION is a simpler, lighter dry-only vacuum that runs up to 60 minutes and charges in about an hour, and its 3.5-inch height gets it under low furniture. Owners rate the Shark slightly higher (4.1 vs 3.9), but the Roomba's feature set is a clear step up for homes with mixed flooring and pets.

• Choose the Shark ION if you want a light, low-profile dry vacuum for carpet and hard floors and don't need mopping, mapping or a self-emptying dock.
• Choose the Roomba 105 Combo if you have both hard floors and rugs, want mopping and hands-off emptying, and will use app zones and schedules.