iRobot's Roomba 694 robot vacuum drops back to $179

We've seen this deal pop up periodically over the past several months, but it's still $71 below the vacuum's typical street price. Outside of a very brief drop to $175 last November, it matches the lowest price we've tracked. This discount comes within $5 of the all-time low for what we consider the best budget robot vacuum for most people. The Roomba 694 itself is the top pick in our guide to the best budget robot vacuums. It's an entry-level model that navigates around a room semi-randomly instead of mapping and following set paths, so it's not the most efficient cleaner, and it'll bonk into furniture around your house.