When it comes to robotic vacuum cleaners, there are two brands that sweep the competition away. One of them is Ecovacs; their line of DEEBOT robots are some of the most magnificent cleaning bots we’ve ever had the fortune of using and reviewing. In this article, we’re going to take a look at the DEEBOT 661 – a versatile bot that takes care of your floors in more ways than vacuuming.

ECOVACS DEEBOT 661 Robotic Vacuum Review

Cleaning Performance

If you’ve ever owned a DEEBOT robotic vacuum cleaner before, then you can expect awesome cleaning performance from the new 661. Like its predecessors, the 661 is more than capable at picking up large, tiny, and even near-microscopic particles off your floors up to 90% of the time. Still, like even some of the most powerful robots out there, it’ll require multiple passes before calling it a job-well-done.

Anti-Tangle Multi-Purpose Brushroll

For those of you with pets, you’ll be glad to learn that the 661’s V-style brushroll is designed to prevent tangling. That’s right – the brushroll’s V-style has alternating bristles and rubber blades which, when suctioning long strands of human or pet hair, will keep the bristles from getting clogged, effectively leaving the suction relatively undisturbed for long periods of time.

ECOVACS DEEBOT 661 Robotic Vacuum

If the brushroll becomes too hairy, simply go at it with a pair of scissors and the 661’s cleaning performance should be as good as new!

Convertible – Vacuum to Mop

The 661 is a convertible, by which we mean it can transform from a standard vacuuming robot to one that mops your floors clean with a wet cloth. Similar to many newer vacuum-mop combo bots, switching modes in the 661 requires detaching the dustbin for a water tank module.

The microfiber cloth is attached by Velcro onto the water tank and absorbs droplets of water at a time so it’ll never become sopping wet and damage floorboards and laminate. However, the navigation system will not force the robot to avoid carpets when the water tank is attached, so prepare to have your carpets slightly moistened by the 661.

Navigation System

The 661 does not come with the most technologically advanced navigation systems that ECOVACS has to offer, but that’s not to say that it does a poor job patrolling your floors. In fact, for a basic navigations system, it works fantastically at avoiding obstacles (most of the time) and cliffs (thankfully, every time). It does tend to get stuck from time to time. If this does happen, it’ll emit a cry for help and alert you through the downloadable app.


No Digital Maps

The 661’s sensors are used only to detect the terrain of its immediate surroundings. Unfortunately, this means that this hybrid robot will not create and save a digital layout of your home. This, consequently, means that every time the robot begins its cleaning cycle, it’ll forget where all of the obstacles are and navigate your floors in a random pattern until it assumes every piece of your floor has been touched.

Best Ecovacs Deebot Robot Vacuums: Buying Guide


Pairing the 661 up with the ECOVACS HOME App for your smartphone is a seamless process involving scanning the QR code found on the side of the 661 and restarting it. Upon opening the app, you’ll find all of the controls and common programmable features. As long as your home Wi-Fi router is still shooting internet beams around your home and your phone is connected to the internet, you can send instructions and receive alerts all day long.


110-minute Runtime

The 661 is packing a pretty hefty battery; on a full charge, the robot can run for 110 minutes maximum, providing more than enough power to clean roughly 1,000 square feet of space before running low on juice. As soon as it detects a low battery, the 661 will dive straight into the charging dock automatically. It takes about four hours for the battery to fill to max capacity.

No Auto-Resume Function

The one feature we’ve become so accustomed to is the auto-resume function – something that’s missing in the 661. Now, this definitely isn’t the end of the world since it does recharge on its own, but without auto-resume, the only way you can get your floors cleaned thoroughly is by commanding the robot to get back to work.

Furthermore, without a stored map in its memory, the robot has no idea where it left of, so instead it’ll begin the cleaning cycle from square one. This will be extremely frustrating to those with large homes.

ECOVACS DEEBOT 661 Robot Vacuum

Ecovacs Related Articles

Buying Guides
Best Ecovacs Deebot Robot Vacuums
Single Reviews
Ecovacs Deebot N79W+ Robot Vacuum Review
Ecovacs Deebot 500 Robot Vacuum Review
Ecovacs Deebot 661 Robot Vacuum Review
Ecovacs Deebot 711S Robot Vacuum Review
Ecovacs Deebot OZMO 950 Robot Vacuum Review
Ecovacs Deebot OZMO 920 Robot Vacuum Review
Comparison Articles
Ecovacs Deebot 901 vs. OZMO 930
Roborock E35 vs. Ecovacs Deebot N79S
Eufy 35C vs. Ecovacs Deebot N79S


The only place we foresee the ECOVACS DEEBOT 661 failing to do its intended jobs is in mansions and homes with wall-to-wall carpeting. As for everyone else, the Deebot 661 is definitely worth the cost. We’re saddened that it doesn’t have an auto-resume function, but this is by no means a deal-breaker. As long as you have your smartphone on you at all times, you’ll receive notifications after it’s fully charged and ready for round 2.


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

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