Credit: Jonathan Feist / Android AuthorityAfter testing a wide variety of robots, we’ve placed the Narwal Freo Z Ultra as our top pick in our list of the best robot vacuums. Its $1,499.99 retail price can be a bit much, though. Luckily, today we came across a really nice deal that brings the cost down to a more reasonable $929.99.Get the Narwal Freo Z Ultra for $929.99 ($570 off)