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iRobot Roomba 780 Robot Vacuum Review

If you are thinking to buy a robot vacuum, Roomba 780 is the right option to spend your money.

Let’s discuss the Roomba 780 review and why you should buy it.

Roomba 780 Robot Vacuum Review

iRobot Roomba 780 Review

How Does a Roomba Fit Into Your Life?

If have used the Roomba before, you might know the experience. But if don’t, then let me tell you that it chimes a nice little tune, and get to work immediately. Soon you will recognize it’s a random pattern to clean and navigate around your home.

But that’s not all…

It will keep move repeatedly over certain areas, sometimes take much more to clean a room. But you shouldn’t need to be in sight of the robot like a traditional vacuum cleaner. Sometimes it bumps into your chair of furniture, sometimes it comes much closer and you feel the noise from the robot signaling that it is nearby. (Although, it’s not louder while compared with others.)

Once it gets the job done or runs low on battery, it will head back to the docking station.

Features of Roomba 780

Let’s break down its features to see what it can do.

Wall-Following Technology

This round shaped robot vacuum won’t let it clean around the walls without some compensating mechanism. Fortunately, the wall follow technology allows the Roomba 780 robot vacuum to point the spinning side brush toward the wall and slowly inch along. That way, every little inch beside the walls is vacuumed.

Spinning Side Brushes

The spinning side brushes bring the dust and debris laying near the walls into the path of suction where it can be sucked due to the concentrated suction at the center.

Soft-touch bumper

The Roomba 780 comes with a 180-degree front soft bumper. If by chance the robot bumps into furniture and walls, the soft bumper acts as a cushion, preventing scratches against your walls and furniture.

HEPA filters

HEPA filter keeps the dirt trapped inside the dustbin and never let it out due to its tight seals.

Cliff Sensors

The cliff sensors help the robot identify ledges, stairs, or big objects coming its way. If working on the upper floor, it will detect stairs before falling down.

Virtual Wall Lighthouse

With the help of Virtual Wall Lighthouse, you can keep the robot in a room preventing it to go to the next room before it finishes vacuuming. This saves a lot of time as the robot tends to move back and forth between rooms. This virtual wall is powered by two C batteries.

The Virtual Wall Lighthouse are basically small beacons you place to cordon off the areas for the robot. It has two modes: Virtual Wall mode and Lighthouse mode. In the Virtual Wall mode, the beacon transmits a blocking signal to block the way for the robot. While the later mode tells the robot to finish vacuuming the current room before moving to the next one. The second mode is efficient as it saves time reducing the traveling of the bot from one room to another.

On-Board Scheduling

As mentioned earlier, Roomba 780 is a silent robot, much quieter than a regular handheld vacuum. But it will be loud if you use it while sleeping.

That said, the scheduling feature allows you to program the robot to clean on certain days and time. So while you are out, you can set the robot to clean the room after you. Once you reached home, you will get clean floors. Robots tend to tangle with cords and small objects lying around. Make sure you clear their way and there are no spots for the robot to get stuck.

If you have shag carpet then you can choose your best vacuum for shag carpet and if you have hard floors then you can choose best vacuum for hardwood floors.

Self Charging home base

The Roomba 780 comes with a docking station. When it runs low on battery, it can automatically return back while locating the base with infrared beams. Everything is auto-pilot escape emptying the dustbin. You need to clean the dirt bin with your bare hands.

Spot Clean Function

This feature allows the machine to focus on a particular spot where intense cleaning is required. The robot has a Spot clean button on its body allowing you to only press the button to get it started for this mode.

Technically, the areas can be a small circle, then keeps getting bigger as it gets cleaned. This thoughtful feature is very helpful when you have something spilled like cereal, chips, or cat litter. Collect the big pieces or particles and let the Roomba finish the rest with Spot Clean.

Less Useful Features

While all the features are not that useful as others.

Remote Control

The remote control is a nice feature to steer the robot in any direction, but not vital to the Roomba’s function.

Full Bin indicator

Few will find this feature useful as it lets you know when the dist bin is full. But those who always empty the dustbin while the cleaning is done won’t find it useful.

Touchpad Interface

It’s just a fancy side of the bot, otherwise, regular buttons can get the job done nicely.

iAdapt technology

This technology allows the robot to examine the surroundings 60 times a second with the help of multiple sensors and, once the scan did it determines which way to go. This can avoid bumps or obstacles but overall, every place is to be cleaned.

Dirt Detect Series 2 Cleaning Technology

The Roomba 780 used to determine the dirt with acoustic sensors, but now with the help of optical sensors, they can visibly see the dirt and dust while capturing the most.

The areas with high foot traffic will activate the Dirt Detect feature. Supposedly the robot will focus more on these areas, but its job is to zip around the entire house, cleaning every inch of the rooms.

Is Roomba 780 Quiet?

For hardwood floors, it creates 65-decibel noise, while for the carpet it creates 60 db.

Where to buy the Roomba 780?

For the most competitive price, we recommend Amazon.

As for charging, you would need a 220v or 240v outlet. Sometime you will receive US domestic chargers that work with 120v outlets. But sometimes you receive universal adapters that work with both 120 and 240v outlets.

But if you receive the charger of 120v then better get a step-down transformer.

Do Roomba 780 vacuums handle pet hair?

The Roomba 780 is excellent at all types of pet hairs: human, cat, dog or any other pet you have in your home. Though it picks up tons of them but struggles with long hairs. If the roller is stuck you have to manually remove the hairs. You do get a hair extractor tool with the robot to make this easier. For that, take the rolling brush out, and use the brush to clean it.

The Roomba 800 Series is completely brush-less. So long or short hairs gets inside without requiring you to pull them out or getting stuck.

Does Roomba 780 works on Hardwood floor or Carpet and Rugs?

Roomba 780 is ideal for different floor types like hardwood floors, carpets. When it comes it area rugs, it has significantly large wheels of 3 inches allowing the robot to climb over the area rugs regardless of its thickness and heaviness. Even the Roomba might push the smaller, lighter rugs around with its power.

Charging time of Roomba 780

The Roomba 780 gets fully charged in less than 3 hours.

Battery Life of Roomba 780

The Roomba 780 comes with an impressive battery which lasts for about 1.5 hours to 2 hours but it depends on the floor.

Though robot vacuums are aimed to provide comfort while letting you sit on the couch. But they still require manual intervention like the manual vacuuming.

But robot vacuums does save you from the noise, and dusty smell while vacuuming.

Overall, the Roomba 780 is an excellent robot vacuum which offers all bells and whistles which are necessary to tidy up your home, but the price tag is expensive.


  • Automated Vacuum
  • Programmable
  • Sweeps entire home
  • Large battery life
  • Audodock
  • Small footprint
  • Smart
  • Small dust bin
  • Cannot get into small areas
  • Requires room preparation
  • Not powerful like corded vac

This article explains iRobot Roomba 780 Robot Vacuum Review & Ratings to help you identify the pros and cons of this vacuum to help you make a better decision.

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