55

Roborock S4 Review

True Score

77
77
7

Experts

80
0

Consumers

Product Awards

GR Certified

Expert Rankings

Top product analysts lauded the Roborock S4, recommending it for bare floors and low-pile carpets. They were astonished by its excellent dirt pickup power on hard floors, HEPA filter, and moderate noise rating.

Reviewers also praised its smart pathing navigation and mapping system and decent dust cup. However, they criticized its high-maintenance design and lack of mopping attachment.

Product Snapshot

Overview

The Roborock S4 is a mid-tier robot vacuum released in 2020, promising advanced navigation on bare floors and carpets. Featuring a laser smart pathing system this vacuum holds its own along with the best vacuum cleaners on the market today.

It features an anti-allergenic HEPA filter that removes up to 99.97% of allergens as small as 0.3 microns. With a decent 0.42L dirt compartment and up to 2000 pa of suction power, this device provides great cleaning on hard floors and low-pile carpets.

Read the whole Roborock S4 review and see how this vacuum compares with the top-rated robot vacuums in the industry today.

Best For

  • Robot Vacuum For Pet Hair

Consensus

our Verdict

Product analysts were impressed by the Roborock S4, endorsing it for bare floors and limited use on carpets. Editors at Tech Hive were pleased with its 0.42L dust cup and its anti-allergy HEPA filter.

Testers were impressed by the battery life of this model, which runs for up to 199 minutes on a single charge. It produces a maximum manufacturer-advertised 2000pa of suction power, cleaning effectively.

During tests, it removed 98% of the large debris on hard floors and 80% on low-pile carpets. However, it can’t scale up high-pile carpets. This model has Wi-Fi and its mobile app received high marks during testing.

Researchers at Digital Trends were pleased with its laser navigation system that uses smart pathing technology. It produced a moderate 68 dBA of noise during testing, which pleased critics.

However, this model doesn’t have a mopping attachment. Consider the Roborock S7 review if you prefer a mopping robot vacuum. The S4 also features a high maintenance design, requiring regular replacement of the HEPA filter, side brush, and brush roll.

ReasonS to Buy

  • Excellent performance on hard floors
  • Smart pathing mapping function
  • Decent 0.42L dirt compartment
  • Anti-allergy HEPA filter

Reason to Avoid

  • High-maintenance design
  • Mixed performance on low-pile carpets
  • Doesn’t function on high-pile carpets

Roborock S4 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 navigationYes
Self-EmptyingSelf-EmptyingNo
Sensor TypeSensor Type
Smart AppSmart App
Works WithWorks WithAmazon Alexa

All Specs

Test Results

Bare Floor Performance (% of Debris Cleaned)92.75
Carpet Performance (% of Debris Cleaned)63
Pet Hair Performance (% of Debris Cleaned)96
Noise level (dB)60.35
Battery Life (Minutes)158

Get the Winner of the Day Direct to Your Inbox

Join 1+ million monthly users and become an instant expert with our daily download of reviews, tips and guides.

Trusted By

Product Comparison

Roborock S4 Review

True Score

77
75
65
NR

Ranking

#

55

/

100

#

61

/

100

#

86

/

100

#

/

Market Context

The Roborock S4 is a mid-tier robot vacuum released in 2020, promising advanced navigation on bare floors and carpets. Featuring a laser smart pathing system…

The Roborock S4 is a mid-tier robot vacuum released in 2020, promising advanced navigation on bare floors and carpets. Featuring a laser smart pathing system this vacuum holds its own along with the best vacuum cleaners on the market today.

It features an anti-allergenic HEPA filter that removes up to 99.97% of allergens as small as 0.3 microns. With a decent 0.42L dirt compartment and up to 2000 pa of suction power, this device provides great cleaning on hard floors and low-pile carpets.

Read the whole Roborock S4 review and see how this vacuum compares with the top-rated robot vacuums in the industry today.

While the Roborock S4 Max vacuum climbs onto and cleans high-pile carpets, the Roborock S4 can not. The Max also has a slightly longer 207-minute…

While the Roborock S4 Max vacuum climbs onto and cleans high-pile carpets, the Roborock S4 can not. The Max also has a slightly longer 207-minute runtime than the 199 minutes of the Roborock S4.

The Roborock S4 performs better on bare floors, featuring a large debris removal rate of 98%, which is better than the 84% rate of the…

The Roborock S4 performs better on bare floors, featuring a large debris removal rate of 98%, which is better than the 84% rate of the Samsung POWERbot R7040. However, the Samsung model presents less running costs.

The Roborock S5 Max features a mopping attachment, which is lacking on the Roborock S4. Also, while the Roborock S5 Max clumps 20mm-high thick carpets,…

The Roborock S5 Max features a mopping attachment, which is lacking on the Roborock S4. Also, while the Roborock S5 Max clumps 20mm-high thick carpets, the Roborock S4 can not.

Auto Docking & Recharging

Yes

Yes

Yes

Bin Capacity

0.13 gal

0.13 gal

0.3 gal

Carpet Height Adjustments

Yes

Yes

Automatic

Cleaning Path Width

Unknown

Unknown

11.3"

Cliff Sensor

Unknown

Unknown

Yes

Compatible Floor Type

All floors

All floors

All floors

Filter Type

HEPA, Washable

HEPA, Washable

Reusable

Hypoallergenic

Yes

Yes

No

Dig Deeper

Roborock S4 Max Review →

Samsung Powerbot R7040 Review →

Score Card

E

Expert Score

77

*.75

We place a 75% weighted value on Expert Test Scores

C

Customer Score

80

*.25

We place a 25% weighted value on Customer Scores

True Score

77

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

Expert Scores

  • Rtings
    103

    Category Trust Rating

    55
    Great for use on bare floors. The Roborock S4 has outstanding performance on bare floors… Read More

    By:

    Dagobiet Morales Alfaro
  • Modern Castle
    97.33

    Category Trust Rating

    96
    The Roborock S4 is the newest robot from Roborock. It’s designed to be slightly simpler… Read More

    By:

    Derek Hales
  • Android Authority
    0

    Category Trust Rating

    NR
    LIKE: Great for the price, Powerful suction, Good battery life, Washable air filter, Voice activation,… Read More

    By:

    Kris Carlon
  • Pocket Lint
    42.68

    Category Trust Rating

    90
    We’re often impressed with Roborock’s robot vacuum cleaners. These are feature-rich cleaning machines that don’t… Read More

    By:

    Adrian Willings
  • The Gadgeteer
    38.16

    Category Trust Rating

    NR
    When I first reviewed the Roborock S4 back in October, I said, ‘It’s easily one… Read More

    By:

    Michael Strange
  • ZDNet
    68.72

    Category Trust Rating

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

    By:

    Matthew Miller

Customer Scores

Learn More About Vacuum Cleaners