Shark 2-in-1 Vacuum and Mop Robot vs iRobot Roomba Max 775 Combo

The Shark 2-in-1 is the stronger pick for most homes: it vacuums and mops at the same time, self-empties for up to 60 days, and self-washes and dries its mop pads from a 30-day water tank. The Roomba Max 775 Combo is lighter and works with Alexa, Google Assistant and Siri, but its listing gives a tiny on-board bin and few ratings to judge it by. Shark owners rate it 4 out of 5 across 1,800 ratings; the iRobot's 4.6 comes from only 26 ratings, so treat it as promising but unproven.

• Choose the Shark 2-in-1 if you want one robot that vacuums and mops in a single pass with self-emptying, self-refilling and self-cleaning docks and you value a large track record of owner ratings.
• Choose the iRobot Roomba Max 775 Combo if you want a lighter robot with an AutoWash dock and native Siri support alongside Alexa and Google Assistant.