It is now getting an update with the S4 Max. Roborock says this model gets a bump in power at maximum setting with better ability to climb over thresholds, especially carpets and rugs.
High-end performance and mid-level price
Roborock S4 Max Review
Like the Roborock S4, the S4 Max offers consumers a more cost-effective option. This model has the same features as the more expensive S5 Max minus the mop. So you’re basically getting an S5 Max for much less. It does not clean built-in dirt either, but the difference is not much. One of the reasons the S4 is so popular is that it costs less than usual. The S4 Max offers the same high-end feature, lower cost and benefit as the S4, and more airflow.
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- Powerful airflow of more than 20 feet per minute
- Great at picking up surface dirt
- One of the lowest cost efficient and smart navigation with invisible wall and restricted areas
- The rubber side brush has better durability
- Good at deep cleaning with an average of 80.2%
- Only average when cleaning edges
- small dust box
Introduction to Roborock S4 Max
S4 Max is probably the best value for money option in Roborock production line. You will get cutting edge features without having to pay premium cost.
Roborock managed to bring the price down because this model does not have an electronic water tank.
It’s an upgrade on the S4 (discontinued) with some cosmetic and performance upgrades. First, we’ll look at the aesthetic changes. Gold is a glossy black finish.
The S4 Max now has a matte black finish, which I love because it gets better with age. What I mean is it won’t be a finger magnet and scratch. The design is also different from the S4 Max Incorporates aspects of the S5 Max in its design.
It’s basically the S5 Max in a matte finish in the same position as the button (above the LIDAR).
The Roborock rep I spoke to says the S4 Max has more suction at the maximum setting. Another improvement is improved ability to climb above thresholds (focus on carpets and rugs).
Underneath it, the design remains the same with one side brush and combo brush.
All newer Roborock options use the all-rubber side brush. I prefer this versus the older version with the bristle tips for longer life.
The Roborock S4 Max has a 0.46 liter upper litter box.
It is not bulky, but it is suitable for daily cleaning operations. And behind it is a washable HEPA filter. This container has a front door for dirt disposal.
There should be no problems with emptying the contents. Make sure you have a large enough litter box for this.
Like all Roborock options, the S4 Max relies on a LIDAR sensor to track and map its location. One of the reasons I like the laser sensor is its accuracy and its lack of reliance on light for navigation.
The S4 Max will start running along the edges before cleaning the middle parts in straight lines.
Users have the option to increase or decrease passes between one and three times. This feature provides a level of flexibility that you don’t often see in other brands at this price point.
For example, file 360 S6 The robot does not have this ability. It will run once by default, and only users on the Region tab can set the number of swipes.
The only other brand that has this feature is Neto Botvac.
I have highlighted this feature because it is an essential thing to have a thorough cleaning. Bots that rotate only once will not be as effective as those with multi-pass capabilities.
Roomba products can escape in a single pass because it has a dirt detector that makes additional passes in the most polluted areas.
Another key feature of the S4 Max is the invisible wall. This feature allows users to add fonts through the app to prevent the bot from being in restricted areas.
Every home has such, and the ability to set the lines diagonally provides more choices for consumers.
Again, other brands in the S4 Max price do not have this feature.
Another app feature included with all Roborock S-series bots is Restricted Zones. It enables users to designate rectangular or square areas.
Restricted areas are useful if you have small areas in the house that you want to block, such as a cat litter area or perhaps a large rug with tassels.
It’s another wrinkle of an already feature-rich app.
The Roborock S4 Max is only compatible with the Roborock app, and I have good news. With the introduction of the new app, users can now name rooms, something that was not available before.
Since this variant does not have a water tank, neither the mop tab nor the no mop area will be present. But it does contain no-go zones, which have a similar function, so it shouldn’t be a deal breaker.
Let’s quickly move on to the app features in Roborock S4 Max.
Invisible wall and restricted areas
These are two basic features, in my opinion, that all robotic vacuum cleaners should have. An invisible wall and restricted areas are containment features, preventing robots from entering restricted areas. Each home has these areas.
An invisible wall is the line that prevents a robot from crossing it like a wall, hence the term. By comparison, a restricted area is a rectangular or square “area” that you draw on a map, which prevents a robot from entering.
You can prevent the robot from entering the pet’s area or a carpet with a lot of tassels.
With this feature turned on, the robot will automatically increase the suction if it detects carpet. So you can leave it at a lower setting to maximize uptime, without having to manually switch to a higher power setting if it stays on the mat.
The LIDAR sensor allows the S4 Max to monitor its location in real time. With the initial scan, the laser sensor will fire signals around the room to determine what it looks like. If you’re running the bot for the first time, you’ll see in real time the running status, where the bot is located, the area size, and more.
Once the run is complete, you will have the option to save the map and add more maps if you live in a multi-storey house. Make sure to activate the muti-level feature to save additional maps.
Piggy support In the previous section, the S4 Max can Save up to 4 map levels. One feature I like is the quick start guide for creating new maps, which makes the process more straightforward.
There is no need to switch maps manually because the app will detect them with the initial scan.
Finally, there is a scheduling feature for unlimited daily runs. The app also provides enough flexibility to select weekdays, weekends or specific days and choose an appropriate power setting suitable for the task.
How much power does the Roborock S4 Max have?
I use an anemometer to measure air flow and here are the results.
- calm: 11.95 cubic feet per minute
- natural: 15.33 cubic feet per minute
- Turbo: 18.87 cubic feet per minute
- the above: 22.26 cubic feet per minute
This robot produces over 22 CFM of airflow at the highest setting, which is excellent with Roomba S9Hundreds of dollars more expensive.
Unfortunately, the S4 Max doesn’t clean quite as well as the Roomba (E5 and 980). None of the robotic voids I’ve tested so far has broken 90% or at least close to it, with the S5 Max being the closest yet.
Note: I made a slight mistake in calculating the airflow, and hit the raw wind speed numbers to 0.024099, instead of 0.026099, hence the lower scores. But I made the corrections above.
The S4 Max has undergone a series of tests on various types of debris such as sand, pet litter, coffee grounds, quinoa, Quaker oats, cherries and hair.
Here are the scores:
- Total: 94.45%
- Solid ground: 99.7%
- Carpet (surface): 98%
- Carpet (deep cleaning): 80.2%
- Sand on the hard floor: 99.9%
hard floor results
- Quaker Oats: 100%
- Cafe floors: 100%
- Quinoa: 99.2%
- pet litter: 99.6%
The S4 Max did its best work on hard surfaces, with a near-perfect score across various tests. You didn’t get 100% quinoa and pet droppings because the side brush brushed a small portion of it out of the bulkhead.
In a real world scenario, this should not be a concern as the robot only has to deal with dust and hair.
sand on hard floor
Sanding is one of the most difficult methods of cleaning on hard floors. To check how the S4 Max handles it, I dispersed 50 grams into a test area.
The high airflow of the S4 Max is evident during this experiment, You get a rate of 99.9% A touch better than the S5 Max.
It is one of the best robotic brooms for sand cleaning and has a strong consideration for those who live in sandy area.
hair wrap test
I added some curls to test the hair wrap. Instead of just showing the brush roll, I weight the hair inside the trash and brush.
There are two tests – the first is a 5-inch (1 gram) test and a 7-inch (1 gram) test.
The high airflow demonstrated itself in these experiments as most of the hair got inside the dust container.
- Five inch test: 0.8g inside the box and 0.2g on the brush
- Seven inch test: 0.8g inside the box and 0.2g on the brush
This is a picture of the hair inside the basket (left) and the brush (right).
It’s a great result, especially the seven-inch test results. The S4 Max appears to be a better option in this price range for cleaning hair.
Another experiment I’ve done is the edge cleaning tests, where I sprinkled ground coffee over one edge of the chamber at the maximum power setting.
This is a before and after picture.
The results were excellent, at least with ground coffee, as you could pick up most of it after running three passes. There was minimal scattering even with the side brush spinning more quickly, to clean this area.
Next, we’ll take a look at how the S4 Max cleans carpets (surface and embedded dirt). I used the same set of wrecks and they (mostly) had excellent grades.
- Quaker Oats: 99.6%
- Cafe floors: 93.6%
- Quinoa: 100%
- pet litter: 98.2%
The S4 Max suffers the most from fine coffee despite the higher airflow. It’s still a high score for non-Roomba products, but it reveals room for improvement with the brush design.
- Quaker Oats: 100%
- Cafe floors: 93.4%
- Quinoa: 100%
- pet litter: 99.2%
Results on mid-pile somewhat mirror those on low-pile carpets. I scored 100% with Quaker oats and quinoa, but they weren’t good for cleaning the coffee grounds. The result was still very good, but not as good as Roomba E5 I tested last week.
I did a bunch of tests to check how well the S4 Max picks up built-in dirt. For the experiment, I used 100g of sand on a medium-pile carpet and ran the robot using three passes.
Was able to get it an average of 80.2%remained less than S5 Max. I was hoping for a higher notch because the S4 Max has more airflow. It might be the brush design, which I doubt since the S4 Max and S5 Max use a similar brush, but these are the results I got so I’ll leave it at that for now.
How noisy is the Roborock S4 Max?
Even with the high airflow, the Roborock did a great job at muting the noise.
- calm: 60.6 dB
- natural: 62 dB
- Turbo: 62.4 dB
- the above: 64.1 dB
He’s a quieter boy than Roomba E5 and 675 I tested before.
How long does Roborock S4 Max last?
Uptime is a strong suit for the S4 Max. can work for up to 180 minutes In its quiet place, so it covers a large area of \u200b\u200bthe land. But uptime doesn’t matter much for a robotic vacuum cleaner with recharge and resume since it resumes cleaning (automatically) if you haven’t completed the task previously.
What comes in the box?
You will get these items from the box.
- Roborock S4 Max Vacuum Cleaner
- Charging base and plug
- Extra HEPA filter
- User’s Guide and Quick Start Guide
Availability of spare parts
The accessibility of Roborock parts has improved over the years as its popularity has grown. Components such as filters and brushes are widely available from Roborock and third-party vendors. The latter indicates increased demand, and more sellers mean lower cost.
I also notice an increase in the availability of batteries. You can buy replacement batteries from third-party sellers on Amazon. Again, it’s a good sign due to the growing popularity of Roborock, but it still lags behind Roomba with the sheer number of options.
However, I still don’t see a lot of options with more obscure parts like a side brush unit or motor, so be sure to keep these components free of hair and dust build-up, so they will last a long time.
As with all robot vacuums, the Roborock S4 Max requires some maintenance to run at its best for extended periods.
Here are the parts that need to be replaced/cleaned regularly.
- Basic brush roll: It is the most abused part of a robot vacuum. Dirt and hair will get trapped in the bristles and hubs. Clean this ingredient at least once a week.
- Side brush: The newer all-rubber construction bodes well for its longevity, but you’ll have to remove any felt wrapping on the base or around the tentacles to prevent any unnecessary wear.
- Dustbin: Empty this container after each run. The HEPA filter is washable, but the best way for its longevity is to tap it to the track enclosure to get the debris out and then vacuum using a handheld device.
- Sensors: Wipe the drip sensors underneath with a clean, dry microfiber towel.
- Wheels: Use a clean towel to wipe the wheels (wheels and side wheels). You can use a slightly damp towel for heavy buildup.
|Model||Roborock S4 Max|
|Battery||5,200 mAh Li-ion|
|Run time||Up to 180 mins.|
|Water Tank Capacity||N/A|
|Dirt Capacity (dry)||460 ml.|
|Recharge and Resume||Yes|
Where can I buy the Roborock S4 Max?
You can buy this robot from online stores like Amazon. Check the link below for more information on current prices.
Disclaimer: We earn a commission if you click on this link and make a purchase at no additional cost to you.
Does the Roborock S4 Max offer excellent value?
The Roborock S4 Max might be one of my favorite Roborock products. It provides users with a lot of high-end features at a relatively affordable cost. I would say it is one of the best value for money robot vacuums.
Does not clean built-in dirt as well as a Roomba, but I’ve yet to test a robot vacuum cleaner like this. But you’ll get access to more navigation and apps than the more expensive Roomba 980.
Users will be able to access features such as the invisible wall and restricted areas. So consumers will have a lot of options with regions they can block without having to actually stop them.
It cleans surface dirt as well as any robotic vacuum thanks to its high airflow. The best part is that you don’t need to spend on top of that.
Verdict: Best value for money Roborock
The results are there, and the S4 Max didn’t disappoint. The S4’s successor offers the same high-end performance and affordability, making the older version a popular choice among budget-conscious shoppers.
It certainly can’t clean as deep as the Roomba, but it makes up for it with a rare combination of high-end app features, mobility, and affordable cleaning performance.
If you don’t mind the lack of a scanning feature, the S4 Max might be the best Roborock option.
One of my favorite Roborock products so far
- Mobility – 97%
- Surface cleaning – 99.2%
- deep cleaning – 80.2%
- Quality – 95%
- Design – 96%
- Values - 98%
- TOTAL AVERAGE: 94%
The Roborock S4 Max is one of my favorite Roborock products with its feature-rich app, high airflow, and excellent debris capture, along with its mid-tier price tag. You will not find this combo in other brands. The growing popularity of Roborock also means the increased availability of third-party vendors, which bodes well for its long-term viability. It doesn’t clean as deeply as Roomba, but it’s hard to complain because you’ll get advanced app features like invisible wall, restricted areas, selective room cleaning, and more.