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Roomba Plus 505 Combo Robot Vacuum & Mop + AutoWash Dock - Extending Spinning Mo vs iRobot Roomba Plus 405

Updated August 2026The Roomba Plus 505 offers superior features and cleaning power compared to the Roomba Plus 405, making it the better choice for those who can afford it.

The Roomba Plus 505 offers superior features and cleaning power compared to the Roomba Plus 405, making it the better choice for those who can afford it.

Why Roomba Plus 505 Combo Robot Vacuum & Mop + AutoWash Dock - Extending Spinning Mo is better

advanced features

Roomba Plus 505 has PrecisionVision AI technology

cleaning power

Roomba Plus 505 delivers 70x more suction than Roomba 600 series

mopping coverage

Roomba Plus 505 extends mopping coverage by 18%

Why iRobot Roomba Plus 405 is better

affordability

Roomba Plus 405 is C$330 cheaper

basic functionality

Roomba Plus 405 still offers strong suction and mopping

user-friendly app

Roomba Plus 405 has an easy-to-use app for basic controls

Overall score

Roomba Plus 505 Combo Robot Vacuum & Mop + AutoWash Dock - Extending Spinning Mo
85
iRobot Roomba Plus 405
70

Specifications

SpecRoomba Plus 505 Combo Robot Vacuum & Mop + AutoWash Dock - Extending Spinning MoiRobot Roomba Plus 405
BrandiRobotiRobot
Model505405
Mop PadsDualCleanDualClean
Smart TechYesLimited
NavigationPro LidarLiDAR

Dimension comparison

Roomba Plus 505 Combo Robot Vacuum & Mop + AutoWash Dock - Extending Spinning MoiRobot Roomba Plus 405

Price Comparison

The Roomba Plus 505 Combo Robot Vacuum & Mop is priced at C$799.99, while the iRobot Roomba Plus 405 is significantly more affordable at C$469.99. This C$330 difference makes the Roomba Plus 405 a more budget-friendly option, especially for those looking to maintain a clean home without overspending. While the higher price of the Roomba Plus 505 may be justified by its advanced features and capabilities, the Roomba Plus 405 offers excellent value for money, making it an appealing choice for those on a tighter budget.

Cleaning Power

Both products boast strong suction capabilities, but the Roomba Plus 505 outshines its counterpart in overall cleaning power. The Roomba Plus 505 delivers 70 times more suction compared to Roomba 600 series robots, effectively tackling messes ranging from crumbs to pet hair. The Roomba Plus 405 also highlights its impressive suction, matched with DualClean Mop Pads and SmartScrub technology, but lacks the advanced features that elevate the cleaning experience in the 505 model. Therefore, for those prioritizing maximum cleaning efficiency, the Roomba Plus 505 is the clear winner.

Mopping Features

When it comes to mopping, the Roomba Plus 505 offers a more comprehensive approach. It features Advanced DualClean Mop Pads that extend floor-mopping coverage by 18% compared to the unextended version, plus SmartScrub technology that provides 2x deeper scrubbing. The Roomba Plus 405, while equipped with similar DualClean Mop Pads and SmartScrub, does not mention the extended coverage, making the 505 superior for those who require a more thorough mopping solution. This difference makes the Roomba Plus 505 a better choice for homes with significant mopping needs.

The Roomba Plus 505 employs ClearView Pro Lidar technology, expertly mapping your home to maximize cleaning coverage. This advanced navigation system ensures that the robot can avoid obstacles and clean more effectively, even in low-light conditions. The Roomba Plus 405 also features ClearView LiDAR for mapping but lacks the “Pro” designation, which may imply enhanced capabilities. For users who value precision in navigation, the Roomba Plus 505's advanced features may prove more beneficial in achieving a thorough clean throughout their space.

Smart Features

Smart functionality is a highlight of both models, but the Roomba Plus 505 has the edge with its additional features. The Roomba Plus 505 integrates PrecisionVision AI technology, allowing it to recognize objects like cords and socks, and it adjusts its path accordingly. This feature enhances the overall cleaning experience by preventing interruptions. The Roomba Plus 405 does offer similar smart capabilities, allowing for custom cleaning routines and voice control through various assistants, but it does not include the advanced recognition technology of the 505. For tech-savvy users, the Roomba Plus 505 provides a more intelligent cleaning experience.

AutoWash Dock Functionality

Both models come with an AutoWash Dock, which simplifies the cleaning process by automating various maintenance tasks. Each dock allows for up to 75 days of auto-emptying and 4 weeks of mopping and pad washing based on one mopping run per week. However, the Roomba Plus 505 boasts additional features like continuous pad refreshing and heated pad drying, which are not mentioned for the Roomba Plus 405. This enhanced functionality not only ensures that the mop pads remain effective but also reduces maintenance effort. As a result, the Roomba Plus 505 offers a more hands-free cleaning solution.

App Compatibility

The Roomba Plus 505 utilizes the new Roomba Home App, which provides users with a detailed control interface for cleaning sessions, including the ability to choose specific rooms or zones. It also offers insights into dirt data, helping prioritize cleaning tasks. The Roomba Plus 405 features a user-friendly version of the Roomba Home App but lacks some of the more advanced insights found in the 505 model. Users who appreciate tailored cleaning options and insightful data may find the Roomba Plus 505 to be a more beneficial investment in the long run.

Which should you buy?

Choosing between the Roomba Plus 505 and the Roomba Plus 405 ultimately comes down to individual needs and budget. If you’re looking for advanced features, superior cleaning power, and enhanced smart technology, the Roomba Plus 505, priced at C$799.99, is an excellent choice. However, if you’re on a budget and still want a solid cleaning performance, the Roomba Plus 405 at C$469.99 provides great value for money with respectable capabilities. Both products are well-designed, but your specific cleaning needs and budget will guide the best choice for your home.

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Roomba Plus 505 Combo Robot Vacuum & Mop + AutoWash Dock - Extending Spinning Mo vs iRobot Roomba Plus 405 | versusfinder