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  • iRobot Roomba Plus 678 Combo Robot + AutoWash Dock
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Last updated November 2026

iRobot Roomba Plus 678 Combo Robot + AutoWash Dock

A LiDAR robot vacuum and mop with an AutoWash dock that empties, dispenses detergent, washes and dries the mop, with Matter support still to come.

4.9
41 ratings

4.9 vs the 3.9 average of 176 robot vacuums we track

$899.99
As an Amazon Associate I earn from qualifying purchases
Launch Year: 2026

Model: V185020

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Connectivity
  • Wi-Fi 2.4 GHz
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Our review

iRobot Roomba Plus 678 Combo Review: 30,000 Pa Suction and a Dock That Washes the Mop Roller

The verdict

The Roomba Plus 678 Combo Robot + AutoWash Dock is a midrange iRobot vacuum and mop that pairs 30,000 Pa suction and LiDAR mapping with a dock that empties the bin, dispenses cleaning solution, washes the mop roller and dries it. The mop lifts automatically over carpet, and the robot recharges and resumes on its own. It suits mixed hard-floor and carpet homes that want low-maintenance cleaning, with the caveat that Apple Home, SmartThings and Home Assistant arrive only once the robot completes Matter certification, and that it connects on 2.4 GHz Wi-Fi only.

Best for
  • Mixed hard floor and carpet homes
  • Low-maintenance cleaning
  • Pet hair and long hair
  • Alexa and Google Home households

Pros

  • 30,000 Pa suction with a hair-cutting main brush and an anti-tangle edge-sweeping brush
  • AutoWash dock self-empties the bin, dispenses cleaning solution, washes and dries the mop
  • Mop lifts automatically over carpet
  • LiDAR navigation with obstacle and cliff detection, multi-room mapping and no-go zones
  • Automatic recharge and resume, scheduling and real-time tracking in the app
  • Works with Alexa and Google Home voice control, plus Siri Shortcuts

Cons

  • Matter certification is still in progress, so Apple Home, SmartThings and Home Assistant arrive only after a future update
  • 2.4 GHz Wi-Fi only, with no 5 GHz support
  • Large dock that needs a clear spot
  • No published runtime, dustbin or water tank capacity, or noise rating

Who is the iRobot Roomba Plus 678 Combo for?

This is iRobot's automated dock experience at a midrange step. It combines 30,000 Pa suction with a mop that the dock washes and dries, so the household sets a schedule and the dock handles most of the upkeep. Homes that mix carpet and hard floors, shed pet hair or long hair, and want the robot to run on its own are the clearest fit, as are Alexa and Google Home households.

What the Roomba Plus 678 Combo offers

Suction is rated at 30,000 Pa, with a hair-cutting multi-surface main brush and an anti-tangle edge-sweeping brush that keep long hair out of the works. Navigation is LiDAR with obstacle and cliff detection, multi-room mapping and no-go zones, and the app handles scheduling and real-time tracking. The mop is washed and dried by the dock, which also self-empties the bin and dispenses cleaning solution, and it lifts automatically when carpet is detected so rugs stay dry. The robot recharges itself and resumes cleaning. Alexa and Google Home voice control work today, and Siri works through Siri Shortcuts.

What to know before you buy

Matter support is the main open item: the robot is going through Matter certification, so Apple Home, SmartThings and Home Assistant reach it only after that update ships. Connectivity is 2.4 GHz Wi-Fi only, with 5 GHz networks not supported, which can complicate pairing on dual-band routers. The robot and dock are sizeable, with the dock measuring about 35 x 33.6 x 47.5 cm, so it needs a clear spot. The maker has not published a runtime, dustbin or water tank capacities or a noise rating for this model, so those comparison rows stay unknown for now.

Is the iRobot Roomba Plus 678 Combo worth it?

For a household that wants a carpet-capable suction rating together with a mop that is washed and dried by the dock and a bin that empties itself, the Plus 678 covers the essentials of a hands-off robot. The trade-offs are the unpublished runtime and capacity figures and smart-home integrations that are still catching up through Matter certification. An Alexa or Google Home household is the best fit; those who need Apple Home or Home Assistant today may prefer to wait for the certification update.

Frequently asked questions

Does the Roomba Plus 678 Combo work with Alexa, Google Home and Apple Home?

Alexa and Google Home voice control work today, and Siri works through Siri Shortcuts. Apple Home, SmartThings and Home Assistant are not available yet: the robot is going through Matter certification, so those platforms arrive once that update ships.

Does the mop wash and dry itself?

Yes. The AutoWash dock washes the mop roller and dries it, and it dispenses cleaning solution automatically.

Does the dock empty the robot?

Yes. The dock self-empties the robot's dustbin, so the bin does not need emptying after every run.

Is it safe for carpets and rugs?

Yes. It has a carpet cleaning mode and lifts the mop automatically when it is on carpet so rugs stay dry.

Does the Roomba Plus 678 Combo support 5 GHz Wi-Fi?

No. It connects on 2.4 GHz Wi-Fi only, and 5 GHz networks are not supported.

Company
iRobot logo

iRobot

3.8/ 5 avg ratingUSA flagHeadquartered in USA

iRobot is the US company behind the Roomba robot vacuums and Braava robot mops, a pioneer of consumer home robotics. Its vacuums are known for smart mapping, automatic dirt disposal and app-based scheduling, and integrate with Alexa and Google Home. iRobot is one of the most recognized names in automated floor cleaning.

Full specifications

Every spec, organized

Browse the full breakdown by category. Tap the on any row for what it means, or the for sources and documentation.

Vacuum Dimensions

13.6 × 13.9 × 3.9 in 34.43 × 35.4 × 9.98 cm

Vacuum Weight

10.7 lb 4.85 kg

Dock Dimensions

13.8 × 13.2 × 18.7 in 35 × 33.63 × 47.45 cm

Dock-Weight

18 lb 8.15 kg

Battery Life

?

Charging Time

?

Auto Recharge

YES

2.4 GHz WiFi

YES

5 GHz WiFi

NO

The Roomba Plus 675-679 Combo owner's guide states that Wi-Fi connectivity only supports 2.4 GHz networks and that 5 GHz networks are not supported.

Bluetooth

?

Z-Wave

NO

Zigbee

NO

Thread Protocol

NO

Google Home

YES

Alexa

YES

Apple HomeKit

Upcoming OTA update

Via Matter. The Verge reported on 2026-09-02 that the Roomba Plus 678 Combo is going through Matter certification, and Apple Home renders robot vacuums over Matter since iOS 18.4.

Samsung SmartThings

Upcoming OTA update

Via Matter

Home Assistant

Upcoming OTA update

Via Matter

Matter

Upcoming OTA update

The Verge reported on 2026-09-02 that the Roomba Plus 678 Combo works with Alexa, Google Home and Siri Shortcuts today and is going through Matter certification, according to iRobot chief engineer Adam Pope.

Navigation Type

Laser (LiDAR)

Obstacle Detection

YES

Cliff Detection

YES

Multi-Room Mapping

YES

No-Go Zones

YES

Suction Power

30000Pa

Carpet Cleaning

YES

Side Brushes

YES

Hair-cutting multi-surface bristle main brush and anti-tangle Edge-Sweeping side brush

Mopping Functionality

YES

Water Tank Capacity

?

Detergent Compatibility

YES

Auto Detergent Dispenser

YES

Auto Mop Washing

YES

Auto Mop Drying

YES

Auto Mop Lifting (For Carpet)

YES

Onboard Dustbin Capacity

?

Self-Emptying Dustbin

YES

Dock Dustbin Capacity

?

Noise Level

?

Real-Time Tracking in App

YES

Scheduling

YES

Child Lock

?

Local Control

?

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