iRobot Roomba Plus 405 (G181)

Name: iRobot Roomba Plus 405 (G181)
Brand: iRobot
SKU: 6305

Manufacturer: iRobot

The iRobot Roomba Plus 405 (G181) is a full-featured robot vacuum cleaner that combines vacuuming and mopping in a single unit. Designed for everyday home cleaning, it supports no-go zones, virtual barriers, and route mapping, giving users solid control over where and how it operates. It connects via Wi-Fi and works with both Google Assistant and Alexa, and the companion app enables smartphone control and flexible scheduling. Notably, the unit also includes mop raising and mop drying functions, which add a degree of practicality to its wet cleaning performance.

Powered by a 5000 mAh battery, the Roomba Plus 405 delivers up to 180 minutes of runtime on a single charge, with a full recharge taking approximately 4 hours. Operating power consumption sits at 33W, and the unit features auto-off and auto-docking capabilities. It carries a dustbin capacity of 0.4 liters and uses a HEPA-grade allergy filter, though the filters are not washable and the unit is not self-emptying. The robot operates at 60 dB, handles all floor types, and offers four cleaning modes alongside a dirt sensor for targeted cleaning. Physical dimensions come in at 351 mm wide, 357 mm deep, and 106 mm tall, with a total weight of 4100 g.

Pros

Offers a substantial 180-minute runtime on a single charge, allowing it to cover larger floor areas without interruption
Combines vacuuming and mopping in one unit, with mop raising and mop drying functions adding practical value to wet cleaning
Supports route mapping, no-go zones, and virtual barriers, giving users meaningful control over cleaning coverage
A dirt sensor enables the robot to focus extra attention on heavily soiled areas for more thorough results
Compatible with both Google Assistant and Alexa, and controllable via smartphone for flexible day-to-day use
HEPA and allergy filtration makes it a more suitable option for households concerned about dust and airborne particles

Cons

Not self-emptying, requiring manual dustbin maintenance after cleaning sessions
The dustbin capacity of 0.4 liters is relatively modest, which may mean more frequent emptying in larger homes
No fullness indicator means there is no automated alert when the bin needs to be emptied
Filters are not washable, adding to ongoing maintenance costs over time
Does not include a physical remote control, so interaction relies entirely on the smartphone app or voice assistants
A 4-hour charge time is lengthy relative to its 180-minute runtime, which can reduce flexibility for back-to-back cleaning sessions

Who is this for?

This robot vacuum is a solid fit for households that want a combined vacuuming and mopping solution without managing two separate devices. The 180-minute runtime makes it particularly well-suited for medium to large homes where a shorter battery life would require multiple cleaning cycles. Users who want granular control over their cleaning routine will appreciate the route mapping, no-go zones, and scheduling capabilities, while those with allergy concerns will benefit from the HEPA and allergy filtration combination. It also works well for tech-comfortable users who prefer managing home devices through voice assistants or a smartphone app.

Who is this NOT for?

Users who want a fully hands-off cleaning experience may find this robot limiting, as it is not self-emptying and lacks a fullness indicator, meaning the dustbin requires regular manual attention. With a dustbin capacity of only 0.4 liters and no washable filters, it may also be a poor fit for pet owners or households that generate a high volume of debris, since both the bin and filters will need frequent maintenance. Additionally, those who prefer or require a physical remote control for device operation will find no such option here, as all controls are handled exclusively through a smartphone or voice assistant.

General info:

has HEPA filter	✓
audible noise	60 dB
has an allergy filter	✓
compatible with Google Assistant	✓
works with Alexa	✓
weight	4100 g
width	351 mm
height	106 mm
thickness	357 mm
volume	13282.542 cm³
warranty period	1 years
estimated empty time	75 days
docking station size	13282.542 cm³

The iRobot Roomba Plus 405 (G181) measures 351 mm wide, 357 mm deep, and 106 mm tall, with a total weight of 4100 g and a unit volume of 13282.542 cm³ — matched by a docking station of the same size. It includes both a HEPA filter and an allergy filter, making it suitable for households with sensitivities to dust or airborne particles. Audible noise during operation is rated at 60 dB. The robot is compatible with Google Assistant and Amazon Alexa for voice control integration. It comes with a one-year warranty, and based on its estimated empty time, the dustbin requires emptying approximately every 75 days.

Features:

supports no-go zones	✓
supports a remote smartphone	✓
has an obstacle sensor	✓
is self-emptying	✕
doesn't get stuck	✓
supports virtual barriers	✓
has route mapping	✓
Has voice prompts	✓
auto docking	✓
has anti-fall sensor	✓
can be scheduled	✓
has a remote control	✕
supports Wi-Fi	✓
Wi-Fi version	Wi-Fi 4 (802.11n)
has mop cleaning	✓
has mop raising	✓
has mop drying	✓

The Roomba Plus 405 (G181) offers a well-rounded set of navigational and cleaning features, including route mapping, no-go zones, and virtual barriers that give users precise control over the robot's coverage area. An obstacle sensor and anti-fall sensor help it navigate safely around the home, while the anti-stuck capability reduces the likelihood of it getting stranded mid-clean. It supports smartphone control and scheduling via Wi-Fi 4 (802.11n), and provides voice prompts for status feedback, though it does not include a physical remote control. The unit docks automatically when a session ends or the battery runs low. On the cleaning side, it supports mop cleaning along with mop raising and mop drying, adding versatility to its floor care routine. It is not self-emptying, so manual dustbin maintenance is required.

Design:

dustbin capacity	0.4 l
Has a display	✕
has twin side brushes	✕
has included washable filters	✕
automatically adjusts its height	✕
Indicates when full	✕

The Roomba Plus 405 (G181) has a dustbin capacity of 0.4 liters, and notably does not include a fullness indicator, so users will need to check the bin manually rather than relying on an automated alert. The unit does not feature a display, twin side brushes, washable filters, or automatic height adjustment, keeping its physical design relatively straightforward.

Cleaning power:

cleans all floor types	✓
cleaning modes	4
mops	✓
has a dirt sensor	✓
has UV light	✕

The Roomba Plus 405 (G181) is capable of cleaning all floor types and offers 4 cleaning modes to accommodate different surface conditions and cleaning needs. It includes mopping in addition to vacuuming, broadening its usefulness across various floor surfaces. A dirt sensor allows the robot to detect and focus on areas with heavier soiling, contributing to more thorough coverage where it matters most. UV light is not included as part of its cleaning setup.

Power:

battery power	5000 mAh
runtime	180 min
charge time	4 hours
operating power consumption	33W
has auto-off	✓

The Roomba Plus 405 (G181) is equipped with a 5000 mAh battery that supports up to 180 minutes of runtime per charge, making it capable of covering larger areas before needing to return to its dock. Recharging from empty takes approximately 4 hours. During operation, the unit draws 33W of power, and it includes an auto-off function that helps conserve energy when the robot is not in active use.

Final Verdict

The iRobot Roomba Plus 405 (G181) presents itself as a capable all-in-one floor care device that covers the fundamentals well — particularly for households seeking both vacuuming and mopping from a single unit. Its 180-minute runtime combined with route mapping, no-go zones, and HEPA filtration make it a practical choice for medium to large homes where consistent, controlled cleaning matters. That said, the absence of self-emptying functionality and a modest dustbin capacity mean it demands a degree of regular upkeep that more autonomous alternatives do not. For users comfortable with that trade-off and who value smart home integration and structured cleaning routines, the Roomba Plus 405 delivers a well-rounded feature set that meets everyday needs reliably.