iRobot Roomba 770 Review


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9.4 Overall Score Reviewed By Experts

The visions of AI are finally here and they are taking over our homes. Not a conventional vacuum cleaner by any sense, the iRobot Roomba 770 is the top product in the iRobot’s lineup that promises to clear up 98 percent of pet hair, dust and dirt by itself. This robotic vac depends on iAdapt Responsive Cleaning Tech to thoroughly service each floor and room, even under furniture. This particular Roomba comes with Dual HEPA filters to clean the air while it vacuums and with the Dirt Detect Series 2 tech it automatically senses the dirtiest spots and cleans them in a concentrated manner until the entire floor is left dust free. It even alerts users to a full dust bin. To totally automate these tiny bots you can choose the scheduling feature that starts up the robots when you aren’t home and then using state of the art touchpad, you can control its patterns and movements, basically letting you go completely hands free. The iRobot Roomba 770 comes with a 1 year limited warranty and 6 months on the battery.

Bare Floors
Airflow Strength
Ease Of Use
Pet Hair
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Our Review:


Roomba 770 uses something called, “Persistent Path” to govern its cleaning routes. According to the iRobot designers, this particular technology forces the vacuum to visit a particularly dirty spot time and again through backward and forward repetitive motion. However, to me all this sounded like mumbo jumbo and I wanted to see it in action before I believed in it. So, I set up my carpet for a trial run. At the center and to one corner I emptied up a little dirt mixed with pet hair and what not and let the Roomba 770 go wild. One hour of careful observation and it amazingly revisited these spots thrice more and stayed on it for longer with repetitive movements until the spots were actually clean! As a carpet cleaner the Roomba 770 is unbeatable, it even senses furniture legs, cords and cables avoiding them as deftly as possible.

Bare Floors:

In previous models from iRobot, one had to manually configure the type of floor since they weren’t capable of detecting carpet fringes, transitions between floors. The Roomba 770 is different as it automatically senses a change in surface and will stop its rotating brushes to the center and sides the moment it steps onto smooth or laminated floors. This coupled with its impressive Dirt Sensing mechanism actually leaves bare floors feeling dust free.

Airflow Strength:

As the highest model in the arsenal of iRobot, the Roomba 770 gets the most suction power and also an inherent ability to turbo boost this when required. I was amazed by the amount of dirt and pet hair it picked up on a single run. For the robot, it must have been multiple passes zig-zagging all over but for me it was a single run that cleaned my entire bedroom up with ease. Moreover, if you leave the doors open, it manages to go through every room, cleaning them up albeit at a snail’s pace.

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Just because they are automatic cleaners doesn’t mean they won’t make a ruckus. These autobots are actually noisy in comparison with handheld cleaners but they won’t deafen you like large uprights or canister vacuums.

Ease Of Use:

I must say, for an automated vacuum cleaner, the iRobot Roomba 770 is the easiest machine to use. Scheduling feature works great only if you know the vacuum won’t stumble anywhere. So, before using the scheduling feature, watch it carefully to find potential roadblocks, which thankfully are limited. Cleaning the bin is super easy and the vacuum stops if it reaches full capacity alerting users. What I loved the most though was the 770’s ability to sense low battery and return back to its docking station for a full charge before returning to its last recorded location. I could go on and on about all the amazing ergonomic features of the Roomba 770 but then again it isn’t all about convenience.

iRobot Roomba 770

iRobot Roomba 770

Pet Hair:

The Neato I had tried out a few weeks back had a major problem in dealing with pet hair. While both the Neato and Roomba 770 remove pet hair with ease, the Neato tends to deteriorate faster if it deals with a lot of pet hair because of its internal design that clogs up the gearbox, motor and other components. iRobot has gotten around this problem by isolating each and every component from each other plus giving you plenty of cleaning tools to maintain your Roomba 770.


The iRobot Roomba 770 won’t clean out your entire house for you neither will it cook you dinner when you come back from the office. It will however, diligently search for dirt and dust, remove it, go from room to room and make sure you come back to a tidier house with a much cleaner air to breathe.

  • AeroVac Series 2 Triple Stage Cleaning helps pick up an impressive amount of pet hair, debris and dirt with spinning side brushes, counter rotating brushes and a powerful central vacuum.
  • Uses Dual HEPA filters for cleaner air free from tiny particulates, dust and allergens.
  • The Dirt Detect Series 2 Tech lets it acoustically find debris and dirt, pet hair using multiple passes on dirty patches for a superior cleaning.
  • The iAdapt Responsive Tech is excellent to sense through a large room and clean it multiple times, avoid stairs or drop offs, navigate around barriers and recognize cords or carpet fringes.
  • Virtual walls lets the Roomba stay within permissible zones eliminating its tendency to clean every place in sight.
  • Allows for on-board scheduling to perform cleaning sessions on a weekly basis even when you aren’t home.
  • Comes with an infrared remote control to manually manage the iRoomba 770
iRobot Roomba 770

Works great with all kinds of surface, senses cable, dirty patches, can stay clear of stairs and other obstacles, offers scheduling with automatic recharging of batteries.

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