Skip to content
Robovations
Robovations™
Robot Autonomy, Classified
Saved
Comparison · 2 robots

iRobot Roomba Plus 505 Combo · Lefant M5 Pro Robot Vacuum and Mop

All robot vacuums. Every measure below is plotted against the full class, so a difference can be read against how much the class itself varies.

  1. iRobot Roomba Plus 505 Combo
  2. Lefant M5 Pro Robot Vacuum and Mop

Up to three

01 Classification

What each one does on its own.

The Autonomy Ladder is the same five rungs for every robot on the site. A rung describes the conditions a robot handles without you, not how good it is.

V
Generalized
Any task, any setting
IV
Environmental
Handles new obstacles without help
III
Conditional
Finishes familiar jobs on its own
iRobot Roomba Plus 505 ComboLefant M5 Pro Robot Vacuum and Mop
II
Assisted
Runs preset routines, needs rescue
I
Manual
One action, on command
02 Assessment

Where they actually differ.

The Robovations Score is nine inputs across three pillars, each weighted as shown and each scored so that more is better. A robot can lead on one and trail on another, which is the point of showing them apart. Cost of ownership and data handling are reported on each robot's own page and are never averaged into the score.

Capability

Task completion16% of score
Does it finish the job it is sold to do, unattended
  • iRobot Roomba Plus 505 Combo75
  • Lefant M5 Pro Robot Vacuum and Mop70
Coverage and navigation10% of score
Does it work the whole area, and hold that between runs
  • iRobot Roomba Plus 505 Combo75
  • Lefant M5 Pro Robot Vacuum and Mop75
Edge-case recovery10% of score
Does it recover from the failures its category presents
  • iRobot Roomba Plus 505 Combo74
  • Lefant M5 Pro Robot Vacuum and Mop25
Operating envelope4% of score
How far conditions can vary before performance drops
  • iRobot Roomba Plus 505 Combo70
  • Lefant M5 Pro Robot Vacuum and Mop65

Dependability

Field failure rate16% of score
Documented hardware failures per owner-year
  • iRobot Roomba Plus 505 Combo81
  • Lefant M5 Pro Robot Vacuum and Mop69
Software stability14% of score
Whether updates fix more than they break
  • iRobot Roomba Plus 505 Combo65
  • Lefant M5 Pro Robot Vacuum and Mop69
Support longevity10% of score
Committed parts, service and updates, with dates
  • iRobot Roomba Plus 505 Combo64
  • Lefant M5 Pro Robot Vacuum and Mop55

Ownership burden

Routine maintenance12% of score
Hands-on time it asks for in normal operation
  • iRobot Roomba Plus 505 Combo94
  • Lefant M5 Pro Robot Vacuum and Mop80
Consumables8% of score
Parts that must be bought to keep it working
  • iRobot Roomba Plus 505 Combo51
  • Lefant M5 Pro Robot Vacuum and Mop60
03 Measured against the class

How far apart is a long way?

A number only means something next to the spread it sits in. Each track below is the real range across every classified robot in the class, with the median marked.

Price193 with a published figure
  • iRobot Roomba Plus 505 Combo$499
  • Lefant M5 Pro Robot Vacuum and Mop$799.99
$149median $699.99$1,799
Noise148 with a published figure
  • iRobot Roomba Plus 505 Combo64 dB
  • Lefant M5 Pro Robot Vacuum and Mop55 dB
43 dBmedian 67 dB80 dB
Height189 with a published figure
  • iRobot Roomba Plus 505 Combo4.2 in
  • Lefant M5 Pro Robot Vacuum and Mop3.9 in
2.6 inmedian 3.8 in21.4 in

Not compared, because fewer than two of these robots carry a published figure: Suction, Runtime, Charge time, Weight.

04 Ownership

What the numbers leave out.

The trade-off

What each design gives up to be good at what it is good at.

iRobot Roomba Plus 505 Combo

The heated dock improves pad hygiene between runs but adds to the dock’s power draw, though not by much: a pad dryer running for a couple of hours after a mopping session is a few kilowatt-hours a month, cents rather than dollars at typical US residential rates. iRobot publishes no consumption figure for the dock.

Camera-based object recognition is what keeps the 505 clear of cords and pet waste, and it is also a camera imaging the floor of the home. The recognition runs on the robot rather than in the cloud, but the 405 one step below carries no camera at all, so the capability is bought with a sensor the cheaper machine does not have.

Lefant M5 Pro Robot Vacuum and Mop

The all-in-one dock reduces manual dust and mop-wash upkeep to a roughly 120-day cadence, but the camera-less sensor array trades some object-detection accuracy for that design.

Combined vacuum-and-mop cleaning runs in a single pass, but no dedicated mop-only mode was available in the version a fetched review tested.

Who each one is wrong for

Stated by the record itself. A robot being wrong for a household is a fact about fit, not a fault.

iRobot Roomba Plus 505 Combo
High-pile or shag carpet homes
Vacuum component optimized for hard floors and low-pile carpet. Owner reports indicate pad drag and suction loss on thick carpet; shag requires manual pre-cleanup.
Homes with 5 GHz-only Wi-Fi and no 2.4 GHz fallback
Dock connectivity, autonomous scheduling, and app control all require 2.4 GHz band. Homes without 2.4 GHz cannot operate autonomous mode.
Owners prioritizing simplicity over premium features
Heated drying, camera-based obstacle recognition and multi-zone scheduling are all things to set up and keep configured. Models below the 505 cost less and ask less of the owner, but they are not the same machine: the 405 has no camera and its mop pads do not extend.
Lefant M5 Pro Robot Vacuum and Mop
Homes with frequent floor clutter or loose cables
A fetched review found the robot can drag or run over small objects it does not detect with its camera-less sensor array.
Buyers wanting fully mopped edges and baseboards
A fetched review measured roughly 7cm of unmopped space along edges since the roller mop does not extend to the sides.
Buyers needing a confirmed multi-year reliability record
The model launched around January 2026; independent field and failure data remain limited.

What stays your job

The upkeep ownership hands back to you, whatever the autonomy level says.

iRobot Roomba Plus 505 Combo
  • Daily: Empty vacuum dust bin if full (every 1-2 runs for larger homes).
  • Weekly: Inspect AutoWash mop pads; refill dock water tank if needed.
  • Monthly: Clean vacuum filters. Wipe the dock pad tray and drain path, using water or an iRobot approved cleaning solution only.
  • Every 3-4 months: Replace mop pads by condition (~$40-50 per pair).
  • Annually: Replace vacuum primary filter.
Lefant M5 Pro Robot Vacuum and Mop
  • Cadence: Empty the roughly 120-day dust bag and rinse the base station periodically.
  • Water/solution refill: Refill the dock’s clean-water supply on a shorter, unspecified cadence than the dust bag.
  • Setup: Set no-go zones and multi-floor maps once in the app.
  • Manual pickup: Clear cables, cords, and small objects before cleaning runs since the camera-less sensor array can miss them.
05 Evidence

How much each of these is standing on.

Classifications rest on different depths of evidence. A pre-release assessment and a verified one are not the same kind of claim.

Evidence behind each classification
Robot Evidence status Sources reviewed Last assessed
iRobot Roomba Plus 505 Combo Verified 9 Aug 2026
Lefant M5 Pro Robot Vacuum and Mop Provisional 4 Aug 2026

Robovations classifies robots; it does not rank them. Nothing on this page is a recommendation, and no manufacturer influences a classification or its placement here.