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Roborock E4 Review

We appreciate this model for its stellar pet hair performance and price, but not much else
Roborock E4
Credit: Roborock
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Price:   $300 List | $184.99 at Amazon
Pros:  Great job returning to its dock, excellent pet hair pickup
Cons:  No room mapping, no barrier protection, no disposal system
Manufacturer:   Roborock
By Jessica Riconscente and Benjamin Hickok  ⋅  Aug 19, 2022
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61
OVERALL
SCORE


RANKED
#6 of 11
  • Navigation - 30% 6.3
  • Home Coverage - 20% 5.6
  • Carpet Cleaning - 15% 6.2
  • Hard Surface Cleaning - 15% 6.0
  • Pet Hair - 10% 9.0
  • Convenience - 10% 3.7

Our Verdict

The Roborock E4 only excelled at lifting pet hair, outperforming most other models we tested, but came up short with regard to convenience and general intelligence. Across nearly all other sets of challenges, its performance was mediocre at best and failed to impress our test team when it came to carpet and hard surface cleaning. A lack of configurable smart features and functions like multiroom mapping, virtual barriers, and no-go zones left our team wanting a lot more from this robot. Unless you are on a tight budget, we recommend spending a bit more on other robot vacuums in our test suite.

Compare to Similar Products

 
Roborock E4
This Product
Roborock E4
Awards  Top Pick Award Editors' Choice Award   
Price $300 List
$184.99 at Amazon
$1,400 List
$1,400 at Amazon
$430 List$300 List$200 List
$199.99 at Amazon
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Pros Great job returning to its dock, excellent pet hair pickupIncredible intelligence, excellent poo recognition, efficient movement, has a self-cleaning mopInexpensive, great overall performance, navigates furniture, great at docking, excellent barrier protectionCleans rice with ease, picks up fine debrisInexpensive, simplistic, great at thorough spot cleaning, good at edging
Cons No room mapping, no barrier protection, no disposal systemExpensive, poor pet hair cleaning, average hard surface cleaning, average edging performanceAverage edging, no dust collection systemHits furniture, no room mapping feature, no multiroom coverage, no barrier protection, no disposal systemNo room mapping, poor at docking, bad multiroom coverage, no barrier protection, no disposal system
Bottom Line We appreciate this model for its stellar pet hair performance and price, but not much elseIf you want an incredible robot that does everything and more, then look no further, but it's spendyAn excellent performer in all of our test metrics and challenges, and has our team impressed, especially considering its low cost against its competitorsThis machine doesn't have the best algorithm to clean your house effectively and lacks otherwise standard featuresWith newer technology like room mapping in apps, we'd suggest looking to another more capable product
Rating Categories Roborock E4 Roborock S7 MaxV Ultra Roborock S4 Max iRobot Roomba 675 Eufy RoboVac 11S Slim
Navigation (30%)
6.3
9.4
7.5
3.5
2.8
Home Coverage (20%)
5.6
8.8
8.7
3.5
4.2
Carpet Cleaning (15%)
6.2
7.6
6.1
6.8
4.9
Hard Surface Cleaning (15%)
6.0
6.6
6.7
5.9
6.0
Pet Hair (10%)
9.0
2.0
8.0
5.0
5.0
Convenience (10%)
3.7
9.3
6.5
3.7
3.0
Specs Roborock E4 Roborock S7 MaxV Ultra Roborock S4 Max iRobot Roomba 675 Eufy RoboVac 11S Slim
Bin Capacity .64 L .4 L .46 L .6 L .6 L
Dimensions 13.5" diameter
3.5" high
13.75" diameter
3.25" high
13.9" diameter
3.8" high
13.25" diameter
3.5" high
12.5" diameter
2.8" high
Weight 6.6 lbs 10.4 lbs 7.3 lbs 7.3 lbs 5.8 lbs
Battery Lithium Ion Lithium Ion Lithium Ion Lithium Ion Lithium Ion
Warranty 1 year limited 1 year limited 1 year limited 1 year limited 1 year limited
Recharge & Resume Yes Yes Yes No No
Multi-Room Navigation (Cleaning) No Yes Yes No No
Spot Clean Spiral Square Square Spiral Spiral
App Yes Yes Yes Yes No
Barrier Type None Virtual Virtual None None
Measured Brush Width 6.5 6.5 6.5 6.25 5.5

Our Analysis and Test Results

The Roborock E4 is an average performer that lacks the convenience, and intelligent features of many other models tested but does offer a really great pet hair performance and is relatively inexpensive.

Roborock E4 robot vacuum - the e4 is a simple robot vacuum, that is generally unexceptional.
The E4 is a simple robot vacuum, that is generally unexceptional.
Credit: Abriah Wofford

Performance Comparison


Our review team researched and purchased the most highly rated robot vacuums. We then tested them in six sets of challenges to determine which one's lived up to the hype and which ones deserved any special merit or recommendation from our team. We break down the Roborock E4's performance below.

Roborock E4 robot vacuum - the e4 provides decent single-room coverage.
The E4 provides decent single-room coverage.
Credit: Abriah Wofford

Navigation


The Roborock E4 is a fairly good navigator, with the exception of poor poo-avoidance. It recognizes obstacles well, methodically moves around furniture without badly abusing furniture legs, and navigates all parts of the room to clean it evenly. Still, finishing the challenge took a little longer than others.

Roborock E4 robot vacuum - navigating its way through obstacle legs fairly well.
Navigating its way through obstacle legs fairly well.
Credit: Jessica Riconscente

It failed to detect our small version of simulated poop in our poo-avoidance challenge. It also had to nudge the larger simulated poop in the challenge before recognizing it and avoiding it in future passes.

The E4 avoided objects on the way back to its docking station but did have to make some adjustments and a second attempt on its approach to dock securely.

Roborock E4 robot vacuum - the e4 was not able to detect or avoid our simulated pet waste.
The E4 was not able to detect or avoid our simulated pet waste.
Credit: Jessica Riconscente

Home Coverage


The Roborock E4 is pretty limited in its home coverage features and functions. It has no multi-room or multi-story mapping features, could be better at cleaning edges, and has no way to configure virtual barriers or no-go-zones.

Roborock E4 robot vacuum - the e4 does a marginal job lifting dirt and debris along edges.
The E4 does a marginal job lifting dirt and debris along edges.
Credit: Jessica Riconscente

That's not to say the robot isn't intelligent. It does an above-average job covering single rooms and avoiding obstacles to do a thorough job of coverage. The single room coverage performance, however good it was, was not good enough to make up for the overall lack of full home coverage features.

Roborock E4 robot vacuum - for a fairly featureless and unintelligent model, the e4 still...
For a fairly featureless and unintelligent model, the E4 still managed to do a decent job of cleaning entire rooms, including working into corners.
Credit: Jessica Riconscente

Carpet Cleaning


The E4 did a near-perfect job of cleaning rice, leaving no rice behind on short-pile carpet and only leaving a couple of grains buried deep in the fluffier carpet we used in our tests. It also did an excellent job of tackling oatmeal, leaving only one or two behind between low and high-pile carpet tests.

Roborock E4 robot vacuum - a fairly decent job cleaning rice from carpet.
A fairly decent job cleaning rice from carpet.
Credit: Jessica Riconscente

When it came down to cereal, it broke it down and left it behind on low-pile carpet, but surprisingly did a very good job leaving only one piece of cereal behind on high-pile carpet in the form of smaller debris. In its attempt to clean flour, it did more damage than good, distributing the mess without picking up much, if any.

Roborock E4 robot vacuum - the e4 left some cereal behind, mildly crushing it further into the...
The E4 left some cereal behind, mildly crushing it further into the carpet.
Credit: Jessica Riconscente

Hard Surface Cleaning


The Roborock E4 does an average job cleaning hard surfaces. It did an average job cleaning rice from hard surfaces and a great job cleaning oatmeal, but its performance cleaning both cereal and flour was unimpressive.

The E4 displaced and left very little rice behind on hard surfaces and did an even more incredible job leaving only two oatmeal grains and some dust behind, but that was about all it could do on hard surfaces.

Roborock E4 robot vacuum - cereal proved to be too difficult for this model to handle.
Cereal proved to be too difficult for this model to handle.
Credit: Jessica Riconscente

The E4 simply could not clean cereal and failed in the way many robots do on this challenge by dragging and displacing it instead. With regard to flour, it cleaned unevenly, leaving quite a bit of flour on the sides of the robot and buried deep into cracks.

Roborock E4 robot vacuum - flour also proved to be too difficult for this model.
Flour also proved to be too difficult for this model.
Credit: Jessica Riconscente

Pet Hair


The Roborock E4 was the best robot vacuum we tested when it came to pet hair performance, which was a bit surprising, considering its fairly average performance across other test metrics. In our pet hair challenge, the E4 cleaned 2.95 grams of pet hair used in the test and outperformed all other models!

Convenience


The Roborock E4 earned a disappointing performance for convenience. The E4 seriously lacks convenient features and standard functions among its robot peers. The Roborock E4 does not include a physical remote, but the app does let you operate the robot with in-app controls. However, the app does not provide the ability to create a virtual barrier, nor does it have a repeat function for thoroughness.

Roborock E4 robot vacuum - the e4 lacks the convenience of a dust removal or bagging system on...
The E4 lacks the convenience of a dust removal or bagging system on its docking station.
Credit: Abriah Wofford

A lack of intelligent controls from the app, combined with a docking station that does not have a self-emptying system, makes the E4 one of the least convenient models our team tested.

Roborock E4 robot vacuum - the small docking station of the e4 prevents it from taking up too...
The small docking station of the E4 prevents it from taking up too much space in your home.
Credit: Abriah Wofford

Should You Buy the Roborock E4?


If the goals for your quest to purchase a robot vacuum include pet hair maintenance and keeping to a tight budget, then the Roborock E4 is a decent option.

What Other Robot Vacuums Should You Consider?


If you are considering the Roborock E4 for its great pet hair performance, then it is probably worth considering the iRobot Roomba j7+ instead. This model offers similar pet hair performance and incredible poo-avoidance, making it the best option for pet owners. We recommend the Roborock S7 MaxV Ultra for the most amount of smart features and overall great performance.

Jessica Riconscente and Benjamin Hickok
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