iRobot Roomba Combo i5 Robot Vacuum & Mop vs iRobot G185 Roomba 405 Combo + AutoWash Dock Robot Vacuum Cleaner

By the Robot Vac Quiz editorial team · Updated 2026 · How we test & score

We compare the iRobot Roomba Combo i5 Robot Vacuum & Mop and the iRobot G185 Roomba 405 Combo + AutoWash Dock Robot Vacuum Cleaner across every dimension that matters - our scores, the key specs, and how each performs on the things you will actually notice day to day.

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At a glance

iRobot Roomba Combo i5 Robot Vacuum & MopiRobot G185 Roomba 405 Combo + AutoWash Dock Robot Vacuum Cleaner
Our score6.5/106.6/10
Best forHomes wanting hands-off floor cleaning on hard floors and carpet, with moppingHomes wanting hands-off floor cleaning on hard floors and carpet, with mopping and self-empty dock
Not ideal forHomes with lots of floor clutter, cables or deep high-pile carpet, where a robot strugglesHomes with lots of floor clutter, cables or deep high-pile carpet, where a robot struggles
BrandiRobotiRobot

Suction Power and Cleaning Performance

iRobot Roomba Combo i5 Robot Vacuum & Mop

The Roomba Combo i5 (model I5172) supports both dry vacuuming and wet mopping, with cleaning performance changing based on the bin that is fitted. Suction-focused results come from the Vacuum bin, which uses a 4-stage cleaning system to pull in dirt, debris, and pet hair. With the mop bin installed, the robot switches to wet pickup and uses a microfiber pad to tackle footprints, pollen, and dust. Dirt Detect technology can also target messier areas more thoroughly during vacuuming. Performance can vary on carpet, not stated.

iRobot G185 Roomba 405 Combo + AutoWash Dock Robot Vacuum Cleaner

Suction power and cleaning performance determine how well this robot vacuum Combo lifts dust before it switches to mopping, and this matters most on carpets, edges and high-traffic lanes. In typical use, this model pulls loose debris well from low pile carpets and collects more grit along baseboards when furniture is kept slightly spaced. Corners may need a second pass because brushes and suction can miss compacted dust, particularly on thick rugs. After vacuuming, the mopping phase runs with less airborne debris, but mopping results depend on drying time.

Navigation and Mapping

iRobot Roomba Combo i5 Robot Vacuum & Mop

How well the Roomba Combo i5 navigates depends on its mapping system, since it uses Imprint Smart Mapping to plan routes inside the home. Mapping helps the robot learn room layouts, then clean with fewer unnecessary repeats. It works best when the home is accessible, with clear pathways and minimal clutter. Still, like most robots, accuracy can drop when areas are poorly lit or newly rearranged, because the map may need re-learning. The unit's compact 34.2 cm by 34 cm footprint also aids turning in tight spaces.

iRobot G185 Roomba 405 Combo + AutoWash Dock Robot Vacuum Cleaner

Navigation in the iRobot Combo relies on onboard sensors and a planned cleaning pattern to move through rooms efficiently, switching from vacuuming to mopping once it reaches the mapped area. The robot scans walls and obstacles, then charts a route that prioritises coverage over random passes. Users may see it clean in neat lines as it repositions around furniture legs and cables. Mapping accuracy can drop in cluttered, highly reflective, or very dark spaces, since sensor readings drive updates.

Battery Life and Run Time

iRobot Roomba Combo i5 Robot Vacuum & Mop

Battery performance and run time are closely tied to how the Roomba Combo i5 uses its cleaning modes. The manufacturer lists a runtime of 60 minutes. That figure can matter when Imprint Smart Mapping assigns rooms, because longer sessions can trigger more frequent returns to recharge. The unit switches between vacuum and mop by swapping bins, and using a mop pad may affect how long cleaning tasks take. Overall, a 60-minute window suits light to medium floor areas, but large homes may need multiple cycles.

iRobot G185 Roomba 405 Combo + AutoWash Dock Robot Vacuum Cleaner

Battery life on the robot vacuum with AutoWash dock is typically sufficient for cleaning a small-to-medium home in a single session, as the robot can vacuum and then switch to mopping after it reaches the mapped zones. With the AutoWash dock, a standard cycle often completes in one go where floors are mostly open. In cluttered rooms, runtime can be reduced due to more obstacles and slower navigation. When the battery charge drops, the robot returns to the AutoWash dock to recharge and refresh. For larger areas, repeat passes may be needed, particularly around thick rugs and in tighter corners.

Mop Function

iRobot Roomba Combo i5 Robot Vacuum & Mop

Mopping on this robot vacuum works by switching from vacuum cleaning to a hard-floor wet clean. The manufacturer states this is done by swapping to the Roomba Combo Bin and using a mop pad. The mop pad is designed for wet performance, and it is intended to tackle footprints, pollen, and dust. Dirtier spots can be targeted more thoroughly when the vacuum bin is replaced.

iRobot G185 Roomba 405 Combo + AutoWash Dock Robot Vacuum Cleaner

After the vacuum phase finishes and the robot returns to its mapped cleaning zones, the Mop Function begins wet-cleaning by switching from vacuuming to mopping. The AutoWash dock refills and refreshes the system, dispensing the approved concentrate and topping up clean water depending on the selected solution. Using the same mapping, the robot moves in steady passes over hard floors. Expect improved pickup of light stains, although results vary with grout depth and sticky residue. For warranty safety, only authorised cleaning solutions should be used, and hot water should be avoided.

Self-Empty and Maintenance

iRobot Roomba Combo i5 Robot Vacuum & Mop

For the Roomba Combo i5, maintenance centres on keeping the correct bin and the cleaning parts in good condition between runs, as it can switch from vacuuming to mopping by swapping to the Roomba Combo Bin. The iRobot i5 robot vacuum and mop Amazon listing describes this bin change as the core routine. After vacuuming, the robot should be checked for trapped debris, and the mop pad should be removed, cleaned, and allowed to dry before reuse. Between modes, users should wipe contact areas so detection stays reliable. The bin system reduces hassle, but skipping this upkeep can lower cleaning performance.

iRobot G185 Roomba 405 Combo + AutoWash Dock Robot Vacuum Cleaner

Once the self-empty cycle finishes, routine care becomes the priority for both the robot vacuum and the AutoWash dock, because clean parts help maintain suction and prevent odour build-up. A robot vacuum self-empty workflow reduces how often emptying is required, but filters still need checks, and the dock waste bin must be kept dry. Inspect the bin area weekly, wipe the sensor windows with a dry cloth, and check the brushes for hair tangles. The AutoWash dock also needs periodic rinses, and any cleaning solution must follow the approved instructions, since unauthorised products may corrode parts and void warranty.

App Control and Smart Features

iRobot Roomba Combo i5 Robot Vacuum & Mop

Managing the Roomba Combo i5 is closely tied to how the bin-based vacuum and mop switching is set up, but day-to-day control mainly happens through its smart features. With the robot vacuum, the robot is paired to an app for scheduling and room selection, using Imprint Smart Mapping to learn the layout. The app enables cleaning of rooms "when you want", and it adjusts to preferences through the learned mapping. Voice control is supported via Alexa, Siri, and Google Assistant, making it possible to request specific rooms such as "kitchen" or "living room". Setup and learning can take time.

iRobot G185 Roomba 405 Combo + AutoWash Dock Robot Vacuum Cleaner

App control and smart features allow owners to manage the Roomba and the AutoWash dock from a phone via the iRobot's companion app. The app supports scheduling, start or stop commands, and status checks including battery level and cleaning progress, as well as monitoring dock wash activity. It also issues alerts when filters need attention. Setup can take several minutes during initial pairing, and smart features depend on Wi-Fi stability.

Noise Level

iRobot Roomba Combo i5 Robot Vacuum & Mop

Noise levels for the iRobot are not stated in the manufacturer's verified specifications provided for the UK 2026 model i517240 (the robot vacuum), so no exact dB rating can be confirmed. For buyers asking "the iRobot Roomba Combo i5 any good" in everyday use, noise expectations must be treated as uncertain. The unit is designed for routine cleaning, it runs for about 60 minutes, and its compact body (34.2 x 34 x 9.3 cm) suggests typical robotic operation. Potential users should plan for background sound, and test it in their home before long meetings.

iRobot G185 Roomba 405 Combo + AutoWash Dock Robot Vacuum Cleaner

Noise levels from the robot vacuum with AutoWash Dock are usually noticeable, but they are typically not extreme for a home robot vacuum. In everyday use, it produces a steady operating hum, plus brush and dock sounds during charging. It runs more quietly on open floors, with noise rising slightly when it bumps into edges or changes direction. During AutoWash dock cycles, the unit can sound louder for a short time, so scheduling those cycles can help if the robot is left to run while you are in another room.

Pet Hair Performance

iRobot Roomba Combo i5 Robot Vacuum & Mop

Pet hair performance on the iRobot (model I5172, i517240 UK 2026) is described as solid for everyday cleanup. The manufacturer states it uses a 4-Stage Cleaning System designed to pull in dirt, debris and pet hair from where it hides. The irobot i517240 roomba combo i5 robot vacuum and mop for pet hair is also positioned to target visible and embedded debris across rooms, with Dirt Detect Technology focusing on dirtier areas when the Vacuum Bin is installed. For heavy shedding, it may still require multiple runs.

iRobot G185 Roomba 405 Combo + AutoWash Dock Robot Vacuum Cleaner

Pet hair performance on the iRobot G185 Roomba 405 with AutoWash Dock is commonly best on hard, open areas, because the main brush and suction can lift loose fur before it mats into carpet fibres. With the iRobot uk, pet hair tends to collect quickly along edges, where the side movement helps sweep it inward. As a robot vacuum for pet hair, it handles light shedding well on low-pile rugs, but deeper carpet can hold onto hair, requiring more passes and wider coverage. Overall, results improve when pets shed frequently, yet stubborn clumps remain a weak spot.

Cleaning and Maintenance

iRobot Roomba Combo i5 Robot Vacuum & Mop

Regular cleaning and care help the robot vacuum (I5172, i517240 UK 2026) stay effective, especially because it switches between vacuum-only cleaning and mopping by changing the bin. For the iRobot i5 robot vacuum and mop, the user should regularly inspect the cleaning areas, remove hair and debris from the bin and pad, and ensure the microfiber pad is properly fitted. Before mopping, check the pad for trapped dust, as this can reduce pickup. After use, clean and dry the bin, and allow the pad to fully dry to prevent smells.

iRobot G185 Roomba 405 Combo + AutoWash Dock Robot Vacuum Cleaner

Cleaning and maintenance help the robot vacuum with AutoWash Dock work well over time, particularly when it is used on mixed floors and clears everyday debris daily. Routine care keeps airflow steady: empty the bin when full, rinse the filter when needed, and wipe the sensors with a dry cloth. For the dock area, the dock tank should be filled only with approved products. The recommended approach is to use "Just Water" with no hot water or vinegar, and to follow the stated cap or pour amounts.

Who Is This Robot Vacuum For?

iRobot Roomba Combo i5 Robot Vacuum & Mop

This Roomba Combo i5 (I5172, i517240 UK 2026) suits people who want one robot that can handle both dry floor cleaning and wet mopping by swapping the bin, making it suitable for households where different floor tasks are needed regularly. The robot vacuum works well for homes needing routine pickup of dust, dirt, debris, and pet hair, since it switches to mopping with a microfiber pad. It also fits users who prefer scheduling and room-specific commands, because it maps rooms and supports voice requests. The 60-minute runtime may limit larger homes.

iRobot G185 Roomba 405 Combo + AutoWash Dock Robot Vacuum Cleaner

Who is the iRobot + AutoWash Dock best suited for in the UK market, following the robot vacuum's North America guidance? It fits people who want one unit for daily vacuuming and scheduled mopping, and who have mostly hard floors and light to medium dirt. It is a practical choice for small homes, apartments, and busy households that prefer automated cleaning cycles. For buyers comparing this robot vacuum vs. Other combos, it makes sense when they accept dock-based washing routines and use only approved solutions. It suits cautious owners who will measure concentrates, such as 2 caps in AutoWash.

iRobot Roomba Combo i5 Robot Vacuum & Mop: pros

  • Up to 60 minutes run-time
  • Vacuum and mop in one

Cons

  • No self-empty dock - the onboard bin needs emptying often
  • Struggles with floor clutter, cables and deep high-pile carpet
  • Sensors and brushes need regular cleaning to keep performing

iRobot G185 Roomba 405 Combo + AutoWash Dock Robot Vacuum Cleaner: pros

  • Up to 120 minutes run-time
  • Self-empty dock - weeks between bag changes
  • Vacuum and mop in one
  • LiDAR laser navigation for systematic cleaning

Cons

  • Struggles with floor clutter, cables and deep high-pile carpet
  • Sensors and brushes need regular cleaning to keep performing

Our verdict

Our pick is the iRobot G185 Roomba 405 Combo + AutoWash Dock Robot Vacuum Cleaner (our score 6.6/10) - A robot vacuum (vacuum + mop, self-empty), a capable hands-off cleaner with LiDAR laser navigation for everyday floor upkeep. The iRobot Roomba Combo i5 Robot Vacuum & Mop is still worth it if it is cheaper when you check, or if it better matches your specific needs.