Cyber Monday seems like the perfect day to buy a robot vacuum cleaner. It is the sort of thing you spend money on on a day like this. The iRobot Roomba 891 is down to $299.99 on Amazon. The Roomba 891 has never dropped below $380 before except for last summer's Prime Day when it matched this deal. Before July it was selling as high as $450, so you're saving a ton today.

Cleans for you

iRobot Roomba 891 self-charging robot vacuum cleaner

It's down to just $300, which is $150 lower than it normally sells for. You can use this with Alexa or via the free mobile app. It's great for cleaning pet hair and works well on both carpet and hardwood floors.

$299.99 $449.99 $150 off

The Roomba 891 automatically adjusts to your floors, cleans multiple rooms, and captures allergens. It is actually great for homes with pets because the robot is designed to minimize tangles from pet hair, and it can clean up allergens and other particles as small as 10 microns.

The 3-stage cleaning system loosens, lifts, and suctions dirt, dust, and large debris. It also improves on previous generations with five times the power behind its suction, so it won't leave anything behind. There's also an automatically adjusting cleaning head that can work over multiple surfaces by adapting its height to keep the Multi-Surface Brushes in close contact with carpet, hard floors, and whatever else. It's even smart enough to notice when it has come in contact with an area that's dirtier than normal and will focus on getting that section clean before moving on.

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The battery lasts for up to 90 minutes in a single run. It will also automatically dock and self-charge before returning to work whenever it runs low on power. You'll be able to set schedules with the free app available on both iOS and Android. The Roomba can also connect to your Wi-Fi network. That lets it sync with your smart home ecosystem, and you can control it directly with your voice whether the assistant is Amazon Alexa or Google Assistant.

It comes with both an edge-sweeping brush and an auto-adjust cleaning head. Users give it 3.8 stars out of 5 based on 624 reviews.

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