Roomba 850 Robotic Vacuum | $290 | Amazon
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Update: Sold out

Sub-$200 robotic vacuums are commonplace these days, but Roombas are still great, especially if you need really powerful suction. The newish Roomba 850 features five times the air power of the 600 and 700 lines, and is marked all the way down to $290 in today’s Amazon Gold Box, its first discount from the usual $440.