Robot vacuums under $800

6 robot vacuums under $800, cheapest first. iRobot Roomba 105 Combo + AutoEmpty Dock starts at $269.99. iRobot Roomba Max 715 Vac + AutoEmpty Dock tops the list at $699.99. Prices checked November 7, 2026.6 robot vacuums under $800 at US prices, cheapest first. Prices in the UK aren't verified yet.6 robot vacuums under $800 at US prices, cheapest first. Prices in the EU aren't verified yet.