iRobot Roomba 981 vs Roborock E4

Cleaning

iRobot Roomba 981Roborock E4
Cleaning typeDryDry
Suction powern/a

2000 Pa

Cleaning area

185 m²

200 m²

Water tank Capacityn/a

180 ml

Number of side brushes

1 piece(s)

1 piece(s)

Overcoming the thresholds

up to 2 cm

up to 2 cm

Self cleaning baseNoNo
Noise level

61 dB

69 dB

Turbo brushYesYes
Usage AreaHard Floor+CarpetHard Floor+Carpet
Power

33 W

58 W

Keep Out ZonesVacuumNo
Cleaning zone limiterVirtual WallVirtual wall
Climbing Threshold

20 mm

20 mm

Wet MoppingNoYes
Vibrating mopping padNoNo
Cleaning time calculationNoNo
3-Point Cleaning SystemYesn/a
Cleaning Brushn/aYes
Edge CleaningYesYes
Bump PreventionYesn/a
SPOT ModeYesYes

Technical specifications

iRobot Roomba 981Roborock E4
Product TypeRobot VacuumRobot Vacuum+Mop
Wi-fiYesYes
Weekly ScheduleYesn/a
Automatic Software Updaten/aYes
Voice Announcementsn/aYes
Modes

3 mode(s)

4 mode(s)

Time SchedulingYesYes

Navigation

iRobot Roomba 981Roborock E4
MappingYesYes
Mapping Typen/aGyroscope
Smart NavigationYesYes
Manual robot control (from the app)YesYes
Selective Room CleaningNoNo
Setting the suction power and water level for each roomNoNo
Storing multiple cleaning maps in memory (cleaning multiple floors)NoNo

Control

iRobot Roomba 981Roborock E4
Voice promptsYesYes
Voice Assistant Support
  • Amazon Alexa
  • Google Home
n/a
Scheduled cleaningYesYes
Manual control (from the button on the vacuum cleaner)YesNo
Control from smartphoneYesYes
Remote controlNoNo
Suction Controln/aAutomatic

Integration with cloud services

iRobot Roomba 981Roborock E4
Amazon AlexaYesYes
Google HomeYesYes
Samsung SmartThingsNoNo
Xiaomi Mi HomeNoNo

Sensors

iRobot Roomba 981Roborock E4
Number of Sensors

42 piece(s)

n/a
Carpet detectionNoYes
Dirt detectionYesNo
Cliff SensorYesn/a

Battery

iRobot Roomba 981Roborock E4
Battery typeLi-ionLi-ion
Battery Capacity

3300 mAh

5200 mAh

Battery life up to

75 min

200 min

Charging time

3 Hours

5 Hours

Fast chargingn/aNo
Battery Voltagen/a

14.4 V

Auto RechargeYesYes

Bin

iRobot Roomba 981Roborock E4
Dustbin Capacity

600 ml

640 ml

Bin StationNoNo
Dust collector filling indicatorYesNo
Washable Dustbinn/aYes

Filters

iRobot Roomba 981Roborock E4
HEPA Filtern/aYes
Washable Filtern/aYes
Cyclone FilterNoNo
Other FiltersAeroForcen/a

Dimensions and equipment

iRobot Roomba 981Roborock E4
Width

351 mm

353 mm

Height

92 mm

91 mm

Depth

351 mm

350 mm

Weight

4 kg

3.2 kg

ColorGreyBlack
Included Equipment
  • 1 Roomba® 981 Robot Vacuum
  • 1 Home Base® Charging Station
  • Robot vacuum cleaner
  • Side brush
  • Wet cleaning cloth
  • User manual
Additionally
  • Error Detection
  • iAdapt Navigation
  • Anti Tangle
  • Silent Mode
  • Inertial navigation