After a hard day at work or running errands, the last thing you want to do is take out the vacuum and give your floors a thorough cleaning. Even a lightweight stick vacuum can prove too difficult to lift if you don’t put your heart and soul into the cleaning tasks at hand. For the busy/lazy people among us, in order to keep your floors relatively clean of Doritos dust, a robot vacuum cleaner is the ideal solution.

Neato Robotics D4 vs. D6

Today, we’d like to take a look at two robots from a fairly popular company – the D4 and D6 by Neato Robotics. At first glance, they could be identical models – they even have the same unique D-shape – but there are some minor differences that make one of them to better option to have. So which one of them will reign supreme in this comparison article? Read below to find out.

Laser-Guided Navigation

Neato D4 and D6
Robotic vacuums use several systems to navigate through the rough wilderness of your home. Some robots can learn the environment of your home or apartment by going through your home, adjusting its trajectory based on what obstacles lay in its path, and program a route which it follows while cleaning your homes.

The Neato D4 and D6 use a slightly different system – lasers. With its laser guide, there’s no need for these robots to randomly bump into your furniture, piles of dirty clothes, and whatever objects you’ve thrown haphazardly on the ground. In addition, the robots will also be able to navigate through the dark, so when it’s nighttime, and all the lights are off, that whirring sound you hear at night is nothing but your robot doing some midnight cleaning.

Neato Robotics D6 vs. D4

Smartphone App

Neato D4 and D6
Neato Robotics is not the first company to give users the ability to command their robot vacuum cleaners to conduct cleaning cycles via downloadable Smartphone app. However, Neato’s app is the first one that lets you set virtual no-go zones in your home with a touch of your gadget’s screen.

Apart from the usual commands to start/stop the robot and send it to the charging dock, the phone’s app makes a virtual map and lets users set up boundaries in their home. For instance, if you have clothes on your bedroom floor or pet bowls on the floor of your kitchen, with the app, simply draw a line across certain areas where your robot is forbidden to pass.

The traditional way of preventing robot vacs from entering no-bot areas is with adhesive strips which honestly are a sight for sore eyes. With Neato’s digital map on your smart gadget, you won’t have to ruin your home’s interior.

Neato Robotics D4

Brush Style

Neato D4
Neato makes two kinds of brushes for their D series robots – a combo brush and a spiral combo brush. The D4 features a combo brush which, after giving the unit a couple of test runs, is able to small pieces of debris extremely effectively. It does experience some problems when attempting to lift larger objects like fallen cereal, but for the most part, it seems to do the trick.

Neato D6
The D6 comes with the spiral combo brush. The spiral design of the brush allows for maximum cleaning in carpets and tiled floors. The best thing about the spiral brush is that it works like a charm at lifting stray hairs from low-tier carpets, which is something that the D4’s standard combo brush struggles with.

Conclusion: If you don’t have any pets or carpets, then the D4’s combo brush will be enough to keep your floors relatively spotless. The D6’s spiral brush excels at cleaning carpets and lifting fallen hair. In addition, these robots cannot use different brush types than what comes in the box – e.g. a spiral brush won’t fit in a D4.

Neato Robotics D6

D-Shape Design

Neato D4 and D6
You might not think twice when considering the shape of a robotic vacuum cleaner. After all, most robots are circular in shape which reduces the risk of it bumping and getting stuck between furniture.

The only problem is that circular robots don’t do well when cleaning the sides of the walls and corners. Their round shape means fewer contact points with vertical objects. The D4 and D6’s unique D-shape is designed to tackle dirt from walls much more effectively than normal robots.

Side Brush

Neato D4
Of course, the only way a robot vacuum can perform well at cleaning walls is if it comes with side brushes. The D4 is not such a model, but it still does extremely well at cleaning tight corners.

Neato D6
The same can’t be said for the D6. This model comes with side brushes on its left and right sides. Not only does it do well in corners, but it also makes cleaning the sides of furniture and walls possible.

Conclusion: Side brushes may not seem like a big deal to some, but they really do help in removing caked-on substances from your walls, tight corners, and other vertically standing objects. We concede that the lack of side brushes isn’t exactly a deal-breaker, but they do add to the overall convenience of owning and operating the robot.


Neato D4
Runtime is the length of time at which a robot vacuum cleaner will operate continuously before needing to recharge. The D4 has a maximum runtime of 75 minutes until it comes time to recharge at its charging dock. The weird thing about this unit is that it can only charge twice per cleaning cycle. After that, you need to restart the cleaning cycle from the beginning.

Neato D6
The D6 offers almost twice as much runtime as the D4. This unit provides up to 120 minutes of continuous cleaning. Like the D4, it also has the strange 2-charge max per cleaning cycle before needing to restart and start from zero. Annoying, yes, but with 240 minutes of runtime max per cycle, this should be enough to tackle even the largest, dirtiest apartments and homes.

Conclusion: The D4 can run for 75 minutes whereas the D6 can run for 120 minutes. After taking these numbers to the lab, it turns out that 120 > 75, thus the D6 would be the better option for larger homes. If it weren’t for that 2-charge max per cycle, the auto-docking feature in both of these models would cause total runtime to become irrelevant.

Neato Robotics D4 Robotic Vacuum


Performance-wise, the Neato D6 is the far better robot compared to its younger brother, the Neato D4. Our reason for saying so is that it can run for longer; clean more effectively on tiled floors, wood floors, and low-tier carpets; and it comes with side brushes for tackling dust stuck on your walls and furniture legs.

The D4 is also a neat robot with its moderate runtime and cleaning effectiveness. For smaller homes, the D4 would probably be the more cost-effective robot to have.

In terms of convenience, any robot vac belonging to Neato’s D series offers it in spades. The customizable cleaning path of your robot coupled with its laser guide gives the robot awesome cleaning capacities. Any home or apartment would greatly benefit from any of Neato’s D series bots.

Neato Robotics D6 Robotic Vacuum

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