59

Roborock S4 Max Review

True Score

75
76
9

Experts

79
0

Consumers

Product Awards

GR Certified

Expert Rankings

The Roborock S4 Max delighted top testers with its automation features, as well as how it was able to clean bare floors. They liked that its companion app was easy to use and that it is also equipped with a HEPA filter.

Unfortunately, the S4 Max has high maintenance needs and struggles on low pile carpets.

Table of Contents

Product Snapshot

Overview

The Roborock S4 Max is a mid-tier robot vacuum that was first announced in 2021. It is one of the best rated vacuum cleaners for users that prefer autonomous cleaning, and with a run time of up to 204 minutes, it is well suitable for cleaning medium to large size rooms.

It has a dirt compartment that can hold up to 0.42-liters of debris, which is even larger than some highly rated robot vacuums like the Roborock H7, which can hold up to 0.25-liters.

The S4 Max also comes equipped with an anti-allergy HEPA filter to filter out up to 99.99% of allergens, and it offers four different power suction modes to choose from Quiet, Normal, Turbo, and Max.

When carpet mode is switched on, it can detect carpets and switch to Max for effective cleaning. In this setting, the S4 Max also doesn’t get as disruptive, as it has a fairly low noise level of 69 decibels.

Rankings (recommended in)

Best For

  • Quietest Robot

  • Roborock

Consensus

our Verdict

The Roborock S4 Max had product testers quite happy with its automation features. During their tests, experts from Rtings could map out their cleaning area through the easy-to-use Roborock app and set up both virtual boundaries and no-go zones.

They could also schedule cleaning times, remote pilot it, and adjust the suction power settings. These are automation features that the S4 Max shares with the Roborock S4.

Testers at Digital Trends were also impressed with how it maneuvered around obstacles. They credited this to its use of Laser lidar navigation which is lacking on the ONSON GOOVI F007.

The S4 Max also impressed testers with its cleaning ability, as it could eliminate 99% of large debris and small debris and 100% of pet hair on bare floors.

ReasonS to Buy

  • Great automation features
  • Anti-allergy HEPA filter
  • Impressive battery performance
  • Standard-sized dirt compartment
  • Various cleaning modes

Reason to Avoid

  • High maintenance needs
  • Not ideal for low pile carpets
  • No “dirt bin full” indicator

Roborock S4 Max Specs

Auto Docking & RechargingAuto Docking & RechargingYes
Bin CapacityBin Capacity0.13 gal
Carpet Height AdjustmentsCarpet Height AdjustmentsYes
Cleaning Path WidthCleaning Path WidthUnknown
Cliff SensorCliff SensorUnknown
Compatible Floor TypeCompatible Floor TypeAll floors
Filter TypeFilter TypeHEPA, Washable
HypoallergenicHypoallergenicYes
Mop FeatureMop Feature
PetPetYes
Product WeightProduct Weight8 lbs
Room-by-Room navigationRoom-by-Room navigationUnknown
Self-EmptyingSelf-EmptyingNo
Sensor TypeSensor Type
Smart AppSmart App
Works WithWorks WithAmazon Alexa

All Specs

Test Results

Bare Floor Performance (% of Debris Cleaned)97.7775
Carpet Performance (% of Debris Cleaned)77.7325
Pet Hair Performance (% of Debris Cleaned)78.33
Noise level (dB)63.8
Battery Life (Minutes)160

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Trusted By

Product Comparison

Roborock S4 Max Review

Roborock S5 Robot Vacuum and Mop Review

Roborock S5 Review

True Score

75
NR
79
NR

Ranking

#

59

/

99

#

/

99

#

38

/

99

#

/

Market Context

The Roborock S4 Max is a mid-tier robot vacuum that was first announced in 2021. It is one of the best rated vacuum cleaners for…

The Roborock S4 Max is a mid-tier robot vacuum that was first announced in 2021. It is one of the best rated vacuum cleaners for users that prefer autonomous cleaning, and with a run time of up to 204 minutes, it is well suitable for cleaning medium to large size rooms.

It has a dirt compartment that can hold up to 0.42-liters of debris, which is even larger than some highly rated robot vacuums like the Roborock H7, which can hold up to 0.25-liters.

The S4 Max also comes equipped with an anti-allergy HEPA filter to filter out up to 99.99% of allergens, and it offers four different power suction modes to choose from Quiet, Normal, Turbo, and Max.

When carpet mode is switched on, it can detect carpets and switch to Max for effective cleaning. In this setting, the S4 Max also doesn’t get as disruptive, as it has a fairly low noise level of 69 decibels.

The Roborock S4 Max is no match for the Roborock S5 since the S5 has a shorter recharge time of 173 minutes compared to the…

The Roborock S4 Max is no match for the Roborock S5 since the S5 has a shorter recharge time of 173 minutes compared to the S4 Max, which takes 300 minutes to charge. Also, the S5 works slightly better on low pile carpets, clearing 99% of pet hair than the S4 Max, which manages 78% clearance.

The Roborock S4 Max has a larger 0.42-liter dirt compartment compared to the Wyze Robot Vacuum, which has a smaller 0.21-liter dirt canister. The S4…

The Roborock S4 Max has a larger 0.42-liter dirt compartment compared to the Wyze Robot Vacuum, which has a smaller 0.21-liter dirt canister. The S4 Max also has a longer run time of 207 minutes compared to the Wyze Vacuum, which can only keep going for up to 134 minutes. However, the Wyze Vacuum cleans pet hair on low carpets more efficiently compared to the S4 Max, as it clears up to 96% compared to the latter’s 78%.

The Roborock S4 Max lacks an electronic water tank, which is present on the Roborock S5 Max. This makes the S5 Max more efficient at…

The Roborock S4 Max lacks an electronic water tank, which is present on the Roborock S5 Max. This makes the S5 Max more efficient at mopping. The S5 Max also has a higher suction level of up to 20 CFM, making it slightly more powerful than the S4 Max, which gets up to 17.74 CFM.

Auto Docking & Recharging

Yes

Yes

Bin Capacity

0.13 gal

0.5 L

Carpet Height Adjustments

Yes

Yes

Cleaning Path Width

Unknown

Unknown

Cliff Sensor

Unknown

Yes

Compatible Floor Type

All floors

Bare Floor, Carpet

Filter Type

HEPA, Washable

HEPA

Hypoallergenic

Yes

Yes

Dig Deeper

Wyze Robot Vacuum Review →

Score Card

E

Expert Score

76

*.75

We place a 75% weighted value on Expert Test Scores

C

Customer Score

79

*.25

We place a 25% weighted value on Customer Scores

True Score

75

Any product with a True Score above 80 is a Absolutely Fresh

Expert Scores

  • Rtings
    103

    Category Trust Rating

    58
    The Roborock S4 Max is excellent for bare floors. It easily clears pet hair and… Read More

    By:

    Dagobiet Morales Alfaro
  • Best Cordless Vacuum Guide
    79.65

    Category Trust Rating

    94
    Results are in, and the S4 Max didn’t disappoint. The S4’s successor offers the same… Read More

    By:

    Garrick Dee
  • Techgear Lab
    95.29

    Category Trust Rating

    74
    If you are searching for all-around great performance, as well as a great value, then… Read More

    By:

    Jessica Riconscente
  • Tom’s Guide
    92.31

    Category Trust Rating

    80
    Do one thing and do it well. That’s the best way to sum up the… Read More

    By:

    Meghan McDonough
  • Modern Castle
    97.33

    Category Trust Rating

    96
    “No bottom line found for this product” Read More

    By:

    Derek Hales
  • Digital Trends
    67.88

    Category Trust Rating

    80
    “No bottom line found for this product” Read More

    By:

    Erin Lawrence

Customer Scores

Learn More About Vacuum Cleaners