Roborock Xiaowa E2 (E20, E25) Robot Vacuum and Floor Mop

Roborock Xiaowa E2 is 2-in-1 robot cleaner, combining robot vacuum and mopping robot in a single unit, enabling the unit to clean bare floors more thoroughly.

Roborock Xiaowa E2 features smart inertial navigation system and route planing, combined with broad range of sensors, allowing the unit to adapt itself to ever-changing environment, cleaning various floor surfaces with ease.

Published: December 3, 2019.

xiaowa e2 1

Roborock Xiaowa E2 Features and Specifications

At the moment, Roborock Xiaowa E2 comes in two different colors, and both versions have different labels:

- white body: Roborock Xiaowa E20

- black body: Roborock Xiaowa E25

Having different labels lead to certain confusion in potential users, but except the color, Roborock Xiaowa E20 and Roborock Xiaowa E25 are two identical robot cleaners.

Roborock Xiaowa E2 features inertial navigation system based on the two gyroscopes and combined with other sensors, enabling the unit to create accurate apartment map and to plan optimal cleaning route, to save time and conserve the energy.

When cleaning starts, Roborock Xiaowa E2 cleans edges first and then methodically cleans other areas, leaving no area uncleaned.

Using onboard sensors, unit is able to evade bumping at various objects and obstacles, but also people, kids and pets. If the bump is unavoidable, unit slows down first - it is not that the unit is fast when cleaning, but by slowing down, the danger of any damage is greatly reduced.

Onboard sensors also allows the unit to recognize the floor type and to automatically adjust the required suction. Roborock Xiaowa E2 features so-called 'Carpet Boost' mode, enabling the unit to increase the suction to the maximum when vacuuming the carpets.

Roborock Xiaowa E2 uses 14.4 volts, 2600 mAh battery which is able to power the unit up to 100 minutes when vacuuming the bare floors.

When vacuuming the carpets, operating time is reduced. For example, when vacuuming low-pile carpets, unit can operate up to 60 minutes, and when vacuuming medium-pile carpets, operating time is reduced down to 50 minutes.

xiaowa e2 features

 Maximum suction of the Roborock Xiaowa E2 is 1800 Pa, which is very good suction for the robot vacuum/mopping robot in this price range.

Suitable bare floor area is around 120-150 m2, but if there are lots of carpeted areas, recommended floor area is reduced down to 50-70 m2 - for a single battery charge.

However, thanks to the inertial navigation system, unit is able to automatically charge itself and to resume the cleaning task where it was interrupted due to the discharged battery.

When the battery is fully discharged, it takes around 240 minutes to fully charge it again.

Unit is rather lightweight and compact and it weighs 6.6 pounds (~3 kg) and features 13.78 inches (35 cm) diameter and 3.54 inches (9 cm) height, allowing the unit to clean even under beds and some sofas.

xiaowa e2 2

Unit is rated at 50 watts and during operation noise levels are ~55 dB, which is rather quiet.

Unlike many other robot vacuum that feature two side brushes, Roborock Xiaowa E2 features 1 side brush, with variable speed:

- when cleaning edges, side brush spins at 330 rpm, thoroughly cleaning wall edges.

- when cleaning flat surfaces, side brush slows down to 130 rps, saving the energy and avoiding the scattering of debris.

Main brushroll is of 'floating' design - it floats above the cleaned area and automatically adjust itself to the floor, cleaning thoroughly both bare floors and carpets in combination with automatic variable suction.

main brush

Main brushroll features rows of bristles combined with rubber pads, optimized for picking up various types of dirt - small and large debris, dust, pet and human hair, lint etc.

Although it is design to prevent hair tangles, from time to time it has to be cleaned using tools that come with the unit.

To help the unit navigate various floors, and especially to climb on and off the carpets, Xiaoma E2 is able to cross obstacles up to 0.79 inches (20 mm) in height, with the main brushroll following the contours of the floor in order to clean them thoroughly (it 'floats' above the surface).

In order to use the unit as the mopping robot, Roborock Xiaoma E2 features water tank integrated with the mop pad holder that is attached under the rear of the robot cleaner.

This was, unit is able to both vacuum and mop at the same time, which is very useful for people with pets and kids and large bare floors.

Note: Roborock Xiaoma E2 comes with many features, but it is nonetheless still an easy to use and maintain robot cleaner - just be sure to read the manual thoroughly.

mop pads

Mop pads are machine washable, just don't use bleaches or fabric softeners in order to prolong the life of the mop pads.

Note: since mop pads are relatively cheap, some users tend to order Roborock accessory kits containing other spare parts as well, not just mop pads: mop pads, air filters, side brushes, main brushrolls.

Roborock Xiaoma E2 dispense the water using capillary principle, avoiding mop pad saturation.

Water tank capacity is 150 ml, while dirt cup capacity is 640 ml.

To prevent the dirt from being released back into the cleaned room, Roborock Xiaoma E2 comes with non-washable E11 HEPA air filter.

hepa e11 air filters

According to the manufacturer, this E11 HEPA air filter is able to capture 99.2% of 0.3 microns or larger particles. But, according to HEPA standards, E11 air filtration level means capture of at least 95% of 0.3 microns or larger particles, and that is big difference.

Anyway, air filtration is OK, although true HEPA air filtration would be nice for people having issues with asthma and allergies.

Note: HEPA air filter is not washable, but it is good practice to periodically tap the filter onto the hard surface (preferably the inner part of the trash can) in order to clean it from the loose dirt particles. For exact maintenance procedures, check the manual.

Roborock Xiaoma E2 & Mi Home App

Roborock Xiaoma E2 doesn't support the use of IR remote control.

Roborock Xiaoma E2 is WiFi enabled unit, and is set, controlled and monitored using Mi Home App, available for both Android and iOS.

Also, unit support the use of Amazon Alexa and Google Home Assistant.

Although the apartment map is rather accurate, Roborock Xiaoma E2 doesn't support zone cleaning and no-go zones. In order to limit the areas where robot goes, user can draw a virtual wall line in the app, and/or place a magnetic strip on the floor.

Or just close the door :)

magnetic strip

Although Roborock E2 support the use of magnetic boundary strips, they don't come by default with the unit - they can be ordered separately from online stores, if required.

Roborock E2 vs E3 vs S4 vs S5 vs S6

Roborock manufactures several very similar robot vacuum cleaners, sharing similar design and features.

The following chart lists several Roborock robot vacuums, including Roborock Xiaoma E2, with their most important features and specifications:

Model Roborock Xiaowa Lite C10 (C1)
Roborock Xiaowa E20 (E2*) Roborock Xiaowa E30 (E3*) Roborock S4 Roborock S5 (S5*) Roborock S6
Photo table roborock c10 table roborock e25 table roborock e35 roborock s4 table table roborock s5 roborock s6 table
Navigation Adaptive Navigation (Random) Inertial Navigation Inertial Navigation Smart LDS Navigation  Smart LDS Navigation Smart LDS Navigation 
Map (No Mapping Feature) Apartment Layout Apartment Layout  Apartment Layout, Running Route, Map Saving, Selective Cleaning  Apartment Layout, Running Route, Map Saving Apartment Layout, Running Route, Map Saving, Selective Cleaning 
Maximum Suction 1600 Pa 1800 Pa 2000 Pa 2000 Pa  2000 Pa 2000 Pa 
Suitable Area 80-120 m2 120-150 m2 150-200 m2 >200 m2  >200 m2 >200 m2 
Operating Time 80 minutes 100 minutes 150 minutes 150 minutes  150 minutes 150 minutes 
Charging Time 240 min 240 min  240 min  240 minutes  240 minutes 240 minutes 
Battery Capacity 2600 mAh  2600 mAh 5200 mAh 5200 mAh  5200 mAh 5200 mAh 
Dynamic Brush Yes Yes Yes Yes  Yes Yes 
Weight 6.61 lbs (3 kg) 6.61 lbs (3 kg)  6.61 lbs (3 kg)  7.72 lbs (3.5 kg)  7.72 lbs (3.5 kg) 7.72 lbs (3.5 kg) 
Robot Height  3.54 inches
(9 cm)
3.54 inches
(9 cm) 
3.54 inches
(9 cm) 
3.78 inches
(9.6 cm) 
3.78 inches
(9.6 cm)
3.78 inches
(9.6 cm) 
Robot Diameter  13.78 inches (35 cm) 13.78 inches (35 cm)  13.78 inches (35 cm)  13.78 inches (35 cm)  13.78 inches (35 cm)  13.78 inches (35 cm)
Rated Power 50 watts 54 watts 57 watts 58 watts  58 watts 58 watts 
Sweeping and Mopping Sweeping Only
Yes Yes Sweeping Only Yes Yes 
Carpet Recognition Yes Yes Yes No Yes Yes 
Carpet Boost Yes Yes Yes No Yes Yes 
Automatic Recharge and Resume Recharge Only Yes Yes Yes  Yes Yes 
Zone Cleaning, No-Go Zones, High Precision Map No No No Yes  Yes Yes 
Scheduling Yes Yes Yes Yes  Yes Yes 
Dirt Cup 640 ml 640 ml 640 ml 640 ml 480 ml 480 ml 
Water Tank - 150 ml 150 ml - 150 ml 160 ml
Floor Types Bare Floors, Low- and Medium Pile Carpets Bare Floors, Low- and Medium Pile Carpets Bare Floors, Low- and Medium Pile Carpets Bare Floors, Low  Pile Carpets Bare Floors, Low- and Medium Pile Carpets Bare Floors, Low- and Medium Pile Carpets
Climbing Height 0.79 inches (20 mm) 0.79 inches (20 mm)  0.79 inches (20 mm)  0.59 inches (15 mm) 0.79 inches (20 mm)  0.79 inches (20 mm) 
Balance Mode Noise 55 dB 55 dB  55 dB  59 dB 62 dB 58 dB
HEPA Filter E11 (Washable) E11 (Washable) E11 (Washable) E11 (Washable)  E11 (Washable) E11 (Washable) 
iPhone & Android App Mi Home Mi Home  Mi Home  Mi Home  Mi Home  Mi Home 
Amazon Alexa, Google Home Support Yes Yes Yes Alexa Only Yes Yes 
Obstacle & Cliff Sensors Yes Yes Yes Yes  Yes Yes 
 Warranty 12 months 12 months 12 months  12 months  12 months  12 months
Amazon Link - Roborock E25 Roborock E35 Roborock S4 Roborock S5 Roborock S6

Note: Amazon affiliate links open in the new windows, feel free to check them for most up-to-date offers and prices.

Although Roborock Xiaowa E2 is an entry-level robot vacuum cleaner/bare floor mop, it is nonetheless capable cleaner.

And as number of features grows, so does the price of the unit:

So, when looking for the right robot vacuum, choose according to your own needs and preferences.


Long Story Short: Roborock Xiaoma E2 (E20, E25) is a versatile and affordable 2-in-1 cleaning unit that cleans thoroughly by vacuuming and mopping at the same time.

Even if you have large carpeted surfaces, detach the mop pad tank/holder and feel free to use the unit as excellent carpet robot vacuum.

For more reviews and recommendations, check Roborock E25 Robot Vacuum Cleaner Amazon link (link opens in the new window).