The iRobot Roomba 770 Vacuum Cleaning Robot for Pets and Allergies is a revolutionary machine that features optical and acoustic sensors to detect dirt in high traffic areas and perform focused cleaning. Customers had complaints about earlier versions of the Roomba being ineffective at cleaning densely dusty areas. But iRobot has addressed this issue successfully and the result is the Roomba 770. The Roomba 770 is efficient on all floor types and is only 3.4 inches high so it can easily fit under furniture, sofas, couches, and beds.


  • iAdapt navigation helps navigate through the entire house
  • HEPA filter
  • 3 stage cleaning system (agitation, brushing, and suction)
  • Dirt detect sensors


  • Self-dock and self-charging
  • Convenient scheduling for daily cleaning
  • Simple operation
  • Remote control
  • Spinning brushes for edge and corner cleaning
  • Low profile design
  • One year warranty


  • Ineffective on pet hair


The iRobot Roomba 770 Vacuum Cleaning Robot for Pets and Allergies has earned a 4.5 star rating from its customers. It effective performance is driven by a three-stage cleaning mechanism that involves agitation, brushing, and suction. Its HEPA filter successfully traps dirt and dust from the carpet or hard floor surface, however a few people have said it is does not work as well with pet hair. The Roomba 770 is expensive when compared to conventional vacuum cleaners, but when comparing its features and performance with its robot competitors, the price is absolutely justified.


iRobot is considered a pioneer in robot vacuum cleaners, and so far they have introduced several series of robots, each with more enhanced features and better performance than the previous series. Their products are well rated by their customers, and they offer a warranty on all of their robot vacuums. When there are so many models to choose from with common features, it helps to see how one model compares to another before choosing the one that is best for you and your household. Here we will present a quick comparison of the iRobot Roomba 770 Vacuum Cleaning Robot for Pets and Allergies with other two models, the iRobot Roomba 870 Vacuum Cleaning Robot for Pets and Allergies and the iRobot Roomba 880 Vacuum Cleaning Robot for Pets and Allergies.


The three selected models of robot vacuum cleaners belong to family of high-selling robot vacuum cleaners and are highly appreciated by its customers in the form of 4.5 star rating. They all have many of the same features including the HEPA filter that is designed to trap dust particle as small as 1 micron in size and to ensure optimum cleaning. They all have a three-step cleaning process with a combination of agitation, brushing, and suction. All three robots self-dock, self-charge, and resume. This means the robots detect when their battery is low and return to their charging panel to dock themselves for charging, and then once fully charged, they resume cleaning from where they left off.

If you are a busy person and have a hectic routine then these machines can be a real blessing, they come with a scheduling option that allows you to program cleaning seven days a week, and they can clean while you are at work or elsewhere so you can return home to find your house cleaned on your arrival.

The low profile design of these machines has expanded their target areas for cleaning, particularly under kickboards, sofas, beds, and other furniture where dust tends to collect. Each of these machines has the ability to reach those hard-to-reach areas and leave your home allergen free. Corner and edge cleaning is also very important, and to clean those areas, these three robot vacuums have spinning side brushes that gently suck any dirt, dust, or debris. For concentrated cleaning, the machines have acoustic and optical sensors that detect high traffic areas and direct the robots to perform focused cleaning in those spots. Another important feature that these three machines share is about their one year warranties.

There are three features that the Roomba 770 lacks that can be found in either the Roomba 880 or the Roomba 870:

  • The AeroForce Three- Stage Cleaning System with second generation motors for deeper cleaning allowing the Roomba 880 and Roomba 870 to deliver up to five times more air power for 50 percent more powerful cleaning, including sucking up the dust from the inner layers of the carpet.
  • The Roomba 880 and The Roomba 870 come with tangle free extractors to avoid clogs caused by hair and other debris.
  • The Roomba 880 is the only one of the three models that has a multi-room navigation system.

The prices of Roomba 770, Roomba 870 and Roomba 880 vary greatly. Roomba 770, although more expensive than traditional vacuum cleaners, has the lowest price of the three. The Roomba 870 is the next more expensive model, and the Roomba 880 is the most expensive model.

If you have a small house or your pets don’t shed much, then the Roomba 770 is the best choice for you. However, if you have thick pile carpets and pets who shed a lot and you are looking for a high powered robot, then the Roomba 870 is a better choice. If you need multiple rooms cleaned, the Roomba 880 with its multi-room navigation system is the best choice, but will cost you almost $200 more than the Roomba 770.