Robot vacuum cleaners have come a long way from simply pushing dirt around and falling off ledges to becoming reliable, self-sufficient devices with sophisticated detectors that send alerts to your mobile gadgets. Two highly regarded robot vacs – the Roborock E35 from Xiaomi and the DEEBOT N79S from ECOVACS – have made quite an impression in the industry.

Roborock E35 vs. ECOVACS DEEBOT N79S

Roborock E35

In this article, we’d like to pit these two robots in a head-to-head battle (not really) to see which is more deserving of our love. Spoiler alert: they’re both awesome, and purchasing either one of them will not result in disappointment.

Suction Power

Roborock E35
When it comes to vacuums – robots or otherwise – suction power is key to having perfectly swept cleaned floors. The E35 doesn’t disappoint with its powerful 2,000-Pa suction magnificence, which is a notch above its competitors.

However, this robot is not designed to handle shaggy rugs or even lift larger pieces of debris form low-pile carpets due to its singular spinning brush. As for smooth surfaces like hardwood floors, no speck of dust can escape the mini-vortex of the E35.

Ecovacs Deebot N79S
This Ecovacs Robot Vacuum has a moderate suction power of 1,000 Pa which is half that of the Roborock.

The good news is that if you have wall-to-wall, low-pile carpeted floors, this robot will lift tiny- to large-size debris without the slightest problem. The awesome cleaning power of the N79S comes from its side brushes which pull in dirt from either side of the robot.

ECOVACS DEEBOT N79S vs Roborock E35

Deebot N79S

Conclusion: So even though suction power is of the grave importance, it’s not just about the pascals rating but also how well the brushes work together at taking in every piece of debris in the robot’s path. In this regard, the Ecovacs Deebot N79S’s 1,000-Pa suction and side brushes make it the better choice for vacuuming carpets, but the Roborock E35 is much more adept at sweeping and vacuuming smooth floors.

Wet Mop

Roborock E35
Sometimes, dirt and grime becomes embedded on floors after drying out, and no matter how much you vacuum, the stain will never, ever be removed. This is where mopping comes into play. The E35 has a wet mop feature where a cloth draws water from an onboard canister before sliding it across your tiled or hardwood floors. Now, the term “mop” is actually quite generous, seeing as how this and every other “mop” robot simply wipes at stains with hardly any pressure.

Roborock E35 Robot Vacuum

Roborock E35

Ecovacs Deebot N79S
The DEEBOT N79S is absent of such a feature, though this is nothing to cry over. Firstly, the technology for robot vacuum-mop has yet to be perfected, so the Deebot N79S isn’t missing out on too much.

Conclusion: Is having a vacuum-mop combo robot better than a vacuum-only robot? Not necessarily, but for those of you with hardwood floors or tiled floors, having a robot mop could come in handy to clean up spills and dried mud.

Dustbin Capacity

Roborock E35
A larger dustbin equals not having to empty it out as often, though it depends on how dirty your floors are and how often your robot needs to clean. A larger dustbin is always preferred, especially if you’re spending most of your time away from home/your apartment and can’t babysit the robot. The E35 has a 640-mL dustbin which is quite large by robot vacuum standards.


Deebot N79S

Ecovacs Deebot N79S
The N79S’s dustbin is rather limited in size. At 450 mL, it’s not the smallest bin out there, but nor is it large enough to allow us to ignore our robot for days on end. Many customers have found that carpeted floors the N79S’s dustbin reaches capacity much more quickly when vacuuming carpeted floors, and they had to empty out the bin multiple times a day. Once again, it depends entirely on how messy your floors actually are.

Conclusion: The DEEBOT’s dustbin is not exactly minuscule, but it can be rather annoying having to empty out the bin multiple times every day. When it comes to dustbin capacity, larger is always more convenient, and therefore we prefer the Roborock E35 over the DEEBOT N79S in this regard.


Roborock E35
For obvious reasons, a larger battery is preferred in robot vacuums since it allows for longer runtimes between charging sessions. The E35 comes with an astounding 5,200-mAh Li-Ion battery which provides upwards of 150 minutes of work. Why is this impressive? Let’s just say that most modern robots struggle to work beyond 100 minutes before running out of juice.

Roborock E35 Review

Roborock E35

Ecovacs Deebot N79S
The N79S features a moderately sized 2,600-mAh Li-Ion battery that’s good for 100 minutes of runtime per charge. The battery is good and all, but it’s pretty much standard in newer robot models. Of course, what matters most is that it has enough power to run to clean large areas before needing to refuel, and at 100 minutes of cleaning time, that is completely achievable.

Conclusion: Even though the E35 has a larger battery, both of these units come with an auto-charging feature that sends them directly to their charging station for refueling. Upon reaching full capacity, the robots will resume where they left off, so the 50-minute difference isn’t all that important.


Deebot N79S

Remote Control

Roborock E35
You can give instructions via your smart device through a downloadable app. The controls are pretty basic – cleaning mode, scheduled cleaning, charging command, and so on. It’s a neat feature to have if you spend most of your day out and want to come home to a clean home.

Ecovacs Deebot N79S
Like the E35, you can download an app on your mobile device to give instructions to the Ecovacs Deebot N79S. But what’s interesting is that this robot also comes with its own remote control that lets you manually control the robot! We enjoyed using this feature for a few minutes, but then the novelty soon wears off and it becomes easier just to use the Smartphone app.

Conclusion: The E35 doesn’t have its own remote control, but that doesn’t make much of a difference since most people would prefer giving cleaning commands to their robots via their mobile devices. Also, you don’t need to be within the robot’s sensory range to do it. As long as your robot is connected to your home’s Wi-Fi, you can send instructions to your robot from distant countries.

Roborock E35

Related Roborock Robot Vacuum Articles
Single Reviews
Roborock E25 Robot Vacuum
Roborock E35 Robot Vacuum
Roborock S4 Robot Vacuum
Roborock S5 MAX Robot Vacuum
Roborock S6 Robot Vacuum

Comparison Articles
Roborock S5 Max vs. S6
Roborock S4 vs. S5 vs. S6
Roborock S6 vs. S5 vs. E3 vs. E2


The largest differences we found between the Roborock E35 and the ECOVACS DEEBOT N79S is the wet mop feature in the former and the better vacuuming power in the latter.

Choosing between these robots should depend entirely on what sort of flooring your home has. With that in mind, we find that the ECOVACS DEEBOT N79S would be the safer purchase since its superior suction power is much more versatile at cleaning all types of floors. Plus, mopping technology in robots isn’t all that great, so you’re not really missing out on a lot.


Recommended Robot Vacuums
Best of the Best! Budget Pick Great for Carpets
iRobot Roomba i7+ (7550) Robot Vacuum with Automatic Dirt Disposal-Empties Itself, Wi-Fi Connected, Smart Mapping, Works with Alexa, Ideal for Pet Hair, Carpets, Hard Floors, Black eufy BoostIQ RoboVac 11S (Slim), Robot Vacuum Cleaner, Super-Thin, 1300Pa Strong Suction, Quiet, Self-Charging Robotic Vacuum Cleaner, Cleans Hard Floors to Medium-Pile Carpets Roborock S4 Robot Vacuum, Precision Navigation, 2000Pa Strong Suction, Robotic Vacuum Cleaner with Mapping, Ideal for Pet Hair, Low-Pile Carpets & Most Floor Types
Roomba i7+ Eufy 11S (Slim) Roborock S4
 • 75min Runtime
 • 1800Pa
 • Keep Out Zones
 • Clean Base
 • 100min Runtime
 • 1300Pa
 • 150min Runtime
 • 2000Pa
 • Precision Navigation