iRobot sells the 105 in three configurations and the differences are not the ones the names suggest. Two of them are the identical robot. The most expensive one has the shortest rated runtime of any robot on this site.
Everyone in this category says they tested twenty vacuums. We have not tested any, and we say so. What we do instead is read the manuals, compile the published specifications, and work out what each machine costs to run for three years — the method is written out in full.
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The verdict: buy the 105 Vac if you will empty a bin, the 105 Vac with AutoEmpty if you will not, and think hard before buying the Combo. All three publish the same ClearView LiDAR mapping, and the 105 Vac's 200-minute rated runtime is the longest of any robot on this site. The Vac and the AutoEmpty are the same robot with the same runtime and the same navigation — the dock is the entire difference. The Combo costs more than the AutoEmpty and publishes 100 minutes, half the runtime, which is the shortest robot rating on this site.
What iRobot publishes for the Roomba 105 Vac
iRobot's own published specification for the base 105 Vac, as read from its retail listing.
70x more power-lifting suction, compared by the manufacturer against the Roomba 600 series
Control
Roomba Home app, on-device buttons, voice assistants
Wi-Fi
2.4 GHz required for setup and operation
Suction in pascals or air watts
Not published
Bin volume
Not published
Every row is iRobot's own published figure for this model. Where a row says "Not published", we could not find the figure on the listing and have not estimated one.
The Vac and the AutoEmpty are the same robot
This is the most useful thing to know before choosing between them, and iRobot's naming does not make it obvious: the 105 Vac and the 105 Vac with AutoEmpty Dock publish identical robot specifications. Same 200-minute rating, same ClearView LiDAR, same 6.2 lb. Nothing iRobot publishes about how the machine cleans changes between them.
What you are buying with the dearer one is the dock and only the dock: up to 75 days hands-free by iRobot's own statement, and a bag that traps 99% of allergens as small as 0.7 microns, so emptying does not put dust back into the room. That is a genuine quality-of-life feature and an allergy feature. It is not a cleaning upgrade, and the decision should be made on that basis rather than on the assumption that more money buys a better robot.
The Combo costs more and runs half as long
The 105 Combo with AutoEmpty is the most expensive of the three and publishes 100 minutes of rated runtime against the vacuum-only models' 200. Mopping costs battery, every combo pays that price, and iRobot is at least publishing the number rather than hiding it. But it means the configuration a buyer reaches for because it "does more" is the one that covers the least floor per charge.
The three Roomba 105 configurations, on each one's published figures.
105 Vac
105 Vac + AutoEmpty
105 Combo + AutoEmpty
Rated runtime
200 minutes
200 minutes
100 minutes
Navigation
ClearView LiDAR
ClearView LiDAR
ClearView LiDAR
Self-empty dock
No
Yes — up to 75 days hands-free
Yes — up to 75 days hands-free
Dock bag filtration
Not applicable
99% of allergens to 0.7 microns
99% of allergens to 0.7 microns
On-board bin
Volume not published
0.1 gallons
Not published
Mopping
No
No
Yes — micro-pump water control, three modes
Carpet handling while mopping
Not applicable
Not applicable
Detects and avoids carpet automatically
Ongoing consumables
None published
Dock bags
Dock bags plus mop pads
Suction in pascals or air watts
Not published
Not published
Not published
All figures are iRobot's own published values for each configuration. The runtime difference is the manufacturer's own rating, not our estimate.
The Combo's redeeming specification is real and worth naming: it detects carpet and stops mopping over it with no programming required, which is the thing budget combos routinely get wrong, and it uses a micro-pump to keep the pad uniformly moist rather than soaking it at the start. If you have hard floors and rugs and want a daily light mop, that is a good machine. If your floors are mostly carpet, you would be buying a mop that spends the run avoiding your floor.
What it does not publish, and why each gap matters
No suction figure in any comparable unit. Not pascals, not air watts, on any of the three configurations. Roborock publishes 8,000 Pa on the Q7 L5 and 10,000 Pa on the Q7 M5+. Those Pa figures are not comparable across brands either — Roborock does not publish its method — but one brand commits to a number and the other commits to a comparison with its own past.
No bin volume on the 105 Vac. This is the configuration with no dock, which makes the on-board bin the thing you interact with every run, and it is the one model where the volume is missing. The AutoEmpty version publishes 0.1 gallons; the dockless one publishes nothing.
No published noise rating on any of the three. The Roborock Q7 L5 publishes 60 dB and the Q7 M5+ 65 dB. For a machine that runs while you are home, that is a figure buyers actually use.
2.4 GHz Wi-Fi is required, which iRobot does publish and which is easy to miss. On a mesh network that only broadcasts 5 GHz the robot will not complete setup, and half of what you are paying for here is mapping, zones and scheduling that exist only in the app.
The machine it is cross-shopped against
The Roborock Q7 L5 publishes a markedly more detailed sheet than any 105: 8,000 Pa stated, 150 minutes, 360-degree LiDAR with multi-floor maps and no-go zones, anti-tangle on both the main and the side brush, a 270 ml dustbin, a 270 ml water tank with three levels, and 60 dB. It vacuums and mops in the same pass, which the 105 Vac does not do at any price.
Where the Roomba answers back is runtime, support and the dock. 200 minutes against 150 is a real margin on a large floor, iRobot's app and parts supply are the most durable bet in this category, and no Q7 L5 configuration offers a self-empty dock — for that you move up to the Q7 M5+, the step up within Roborock's own line. The honest split: buy the Roborock for published specifications and mopping, buy the Roomba for runtime, longevity and the 75-day dock. The full brand-by-brand comparison is here.
#
Product
Best for
Score
Price
01
iRobot Roomba 105 VacLiDAR mapping, keep-out zones and a 200-minute rating from the brand that will still be supporting the app in five years.
iRobot Roomba 105 Vac with AutoEmpty DockThe same robot as the 105 Vac with the dock that changes how you live with it: 75 days between bag changes instead of an emptying chore every run.
iRobot Roomba 105 Combo with AutoEmpty DockIt detects carpet and stops mopping over it without being told, which is the one thing budget combos routinely get wrong.
Roborock Q7 L5 Robot Vacuum and Mop8,000 Pa, 360-degree LiDAR and dual anti-tangle brushes — the most specified sheet at this price, with a 270 ml tank that is the catch.
The three Roomba 105 configurations beside the machine they are most often cross-shopped against. Scores are our rubric applied to published specifications, not test results — we have not handled any of these machines.
01 · Best mapping under $300
iRobot Roomba 105 Vac
LiDAR mapping, keep-out zones and a 200-minute rating from the brand that will still be supporting the app in five years.
70x more power-lifting suction, compared by the manufacturer against the Roomba 600 series
Control
Roomba Home app, on-device buttons, voice assistants
Wi-Fi
2.4 GHz required for setup and operation
Suction in Pa
Not published
Every figure above is the manufacturer's own published number. Where a manufacturer publishes nothing, the row says "Not published" rather than an estimate.
What the numbers say
+200 minutes rated, the longest published runtime of any robot on this site
+Real LiDAR mapping, keep-out zones and room targeting at a budget price
+Recharge-and-resume, so a large floor completes without you
+iRobot's app and parts supply are the most durable bet in the category
Where it stops
−The 70x suction claim is measured against iRobot's own decade-old 600 series, not against a competitor
−No self-empty dock in this configuration — you empty the on-board bin
−No published bin volume
Who it is for
Multi-room homes that want scheduled, mapped cleaning without a self-empty dock's price.
Skip it if
Nobody in the house will install an app. Half of what you are paying for is mapping, zones and scheduling, and none of that exists without the phone.
Our score: 8.0 out of 10
Published suction6.5
Navigation9.0
Runtime10.0
Bin and dock6.0
Running cost7.5
Scored against the published rubric on How We Pick. These are judgments about spec sheets, not measurements.
02 · Best self-empty under $400
iRobot Roomba 105 Vac with AutoEmpty Dock
The same robot as the 105 Vac with the dock that changes how you live with it: 75 days between bag changes instead of an emptying chore every run.
Ongoing consumable — roughly five bag changes a year at the stated 75-day interval
Suction in Pa
Not published
Every figure above is the manufacturer's own published number. Where a manufacturer publishes nothing, the row says "Not published" rather than an estimate.
What the numbers say
+75 days between interactions is the single biggest quality-of-life feature in this category
+Bagged dock means emptying does not put dust back in the room, which matters for allergies
+Identical mapping and runtime to the cheaper 105 Vac — you are paying only for the dock
Where it stops
−Dock bags are a permanent running cost that the dockless version does not have
−The dock is bulky and needs clear floor space either side
−0.1-gallon on-board bin is small, which is fine only because the dock exists
Who it is for
Pet households and larger homes, where the on-board bin fills every single run.
Skip it if
Your floor is mostly hard surface and lightly used. At that dirt load the on-board bin lasts a week anyway, and the dock is solving a problem you do not have.
Our score: 8.4 out of 10
Published suction6.5
Navigation9.0
Runtime10.0
Bin and dock9.5
Running cost6.0
Scored against the published rubric on How We Pick. These are judgments about spec sheets, not measurements.
03 · Best vacuum-and-mop combo
iRobot Roomba 105 Combo with AutoEmpty Dock
It detects carpet and stops mopping over it without being told, which is the one thing budget combos routinely get wrong.
Automatically detects and avoids carpet while mopping — manufacturer states no programming required
Mopping
Micro-pump controls water flow to keep the pad uniformly moist
Modes
Vacuum only, mop only, combined
Navigation
ClearView LiDAR
Dock bag filtration
Traps 99% of allergens as small as 0.7 microns
Suction in Pa
Not published
Every figure above is the manufacturer's own published number. Where a manufacturer publishes nothing, the row says "Not published" rather than an estimate.
What the numbers say
+Automatic carpet avoidance while mopping, with no map editing required
+Micro-pump water control instead of a pad that soaks then dries out
+Three genuinely separate modes
+The 75-day dock applies to the combo too
Where it stops
−100 minutes is half the vacuum-only 105's rating — mopping costs you battery
−A flat pad drags dirt; it does not scrub, whatever any combo claims
−Mop pads are a consumable on top of dock bags
Who it is for
Hard-floor and rug homes that want a daily light mop rather than a deep clean.
Skip it if
Your floors are mostly carpet. You would be buying a mop that spends the whole run avoiding your floor.
Our score: 7.6 out of 10
Published suction6.5
Navigation9.0
Runtime6.5
Bin and dock9.5
Running cost5.5
Scored against the published rubric on How We Pick. These are judgments about spec sheets, not measurements.
04 · Best published suction under $300
Roborock Q7 L5 Robot Vacuum and Mop
8,000 Pa, 360-degree LiDAR and dual anti-tangle brushes — the most specified sheet at this price, with a 270 ml tank that is the catch.
360-degree LiDAR with multi-floor maps and no-go zones
Brushes
Anti-tangle main brush plus zero-tangle side brush
Rated noise
60 dB
Wi-Fi
2.4 GHz only
Every figure above is the manufacturer's own published number. Where a manufacturer publishes nothing, the row says "Not published" rather than an estimate.
What the numbers say
+Publishes a suction figure, unlike most of the field
+Dual anti-tangle brushes — both main and side, which most brands only claim for one
+Multi-floor mapping stored on the robot, so it works in a two-story house
+Vacuums and mops in the same pass
Where it stops
−270 ml dustbin is barely half the Lefant M210's, so it fills fast in a pet home
−Pa figures are not comparable across brands and Roborock does not publish their method
−No self-empty dock in this configuration
Who it is for
Multi-floor homes that want proper mapping and are willing to empty a small bin.
Skip it if
You have shedding pets and no self-empty dock. A 270 ml bin in a dog house is a daily chore, and the Q7 M5+ exists specifically to fix that.
Our score: 7.8 out of 10
Published suction8.5
Navigation9.0
Runtime8.5
Bin and dock5.0
Running cost7.5
Scored against the published rubric on How We Pick. These are judgments about spec sheets, not measurements.
What it costs to own
The dockless 105 Vac publishes no ongoing consumable at all — you empty the bin and wash what is washable. The two AutoEmpty models commit you to dock bags for as long as you own the machine: at iRobot's own stated 75-day interval that is roughly five bags a year, or about fifteen over three years, which is consistent with the 15-to-21-bag range we found across every bagged self-emptying robot on this site. The full three-year running-cost arithmetic for the category is here.
The Combo adds mop pads on top of the bags, so it is the most expensive of the three to buy and the most expensive of the three to keep. That is the complete ownership picture: the cheapest configuration is also the only one with no recurring bill, and the dock is a convenience you rent rather than a capability you buy.
Which of the three to buy
105 Vac — a multi-room home that wants mapped, scheduled cleaning and will empty a bin. The longest rated runtime on this site and no consumables at all.
105 Vac with AutoEmpty — pet households and larger homes where the on-board bin fills every run, and anyone with allergies, because a bagged dock keeps the dust out of the room. Identical robot, so you are deciding about the dock and nothing else.
105 Combo with AutoEmpty — hard floors and rugs where a daily light mop is wanted and the halved runtime still covers the floor. Not for a mostly-carpeted house.
Who should not buy any of them
Anyone who will not install the app. Mapping, keep-out zones and scheduling are most of the value and all of them live in the phone. Setup also requires 2.4 GHz Wi-Fi.
Anyone choosing on published suction. iRobot does not state one in a comparable unit on any 105. If the number on the sheet is how you decide, the Roborocks publish Pa figures and the Roomba never will.
We have not used any of these machines. Everything above is read off iRobot's own published specifications and compared with other manufacturers' published specifications. A spec sheet cannot tell you how the 105 behaves on a dark rug, how reliably it docks, or how the battery holds up in year three — and iRobot publishes no battery-cycle rating, which no robot brand on this site does. Our method page states exactly where our evidence stops and why we publish a score anyway.
Common questions
What is the difference between the Roomba 105 Vac and the 105 Vac with AutoEmpty?+−
The dock, and nothing else. Both publish the same 200-minute rated runtime, the same ClearView LiDAR navigation, the same 6.2 lb weight and the same three-stage cleaning system. The AutoEmpty version adds a dock rated for up to 75 days hands-free with a bag that traps 99% of allergens as small as 0.7 microns. It is a convenience and allergy upgrade, not a cleaning upgrade.
Is the Roomba 105 Combo worth it?+−
Only on the right floors. It is the most expensive of the three configurations and publishes 100 minutes of rated runtime against the vacuum-only models' 200, because mopping costs battery. What it does well is automatic carpet detection while mopping with no programming required, plus micro-pump water control. On a mostly carpeted floor it is the wrong buy.
How much suction does the Roomba 105 have?+−
iRobot does not publish a suction figure in pascals or air watts for any Roomba 105 configuration. Its only published claim is 70x more power-lifting suction compared against iRobot's own Roomba 600 series, which cannot be set beside another brand's number. By contrast Roborock publishes 8,000 Pa on the Q7 L5 — though Pa figures are not reliably comparable between brands either.
How long does the Roomba 105 run?+−
iRobot publishes 200 minutes for the 105 Vac and the 105 Vac with AutoEmpty, which is the longest rated runtime of any robot vacuum on this site. The 105 Combo with AutoEmpty publishes 100 minutes, because mopping draws on the same battery.
Roomba 105 or Roborock Q7 L5?+−
The Roborock publishes the better sheet — 8,000 Pa, 360-degree LiDAR with multi-floor maps, anti-tangle on both brushes, 60 dB, and it mops as it vacuums. The Roomba answers with 200 minutes against 150, the most durable app and parts supply in the category, and the option of a 75-day self-empty dock that no Q7 L5 configuration offers. Buy on published specifications and mopping, or buy on runtime and longevity.
Does the Roomba 105 need Wi-Fi?+−
Yes, and specifically 2.4 GHz, which iRobot publishes. The robot will clean without the app once set up, but mapping, keep-out zones, room targeting and scheduling all live in the Roomba Home app, and that is most of what distinguishes this machine from a random-bounce robot.
Sources
Manufacturer-published specifications — Every runtime, wattage, capacity, weight, filtration and warranty figure quoted on this page is the manufacturer's own published number for that model, retrieved September 1, 2026. Where a manufacturer publishes no figure, the page says 'Not published' rather than estimating one.
Sweep & Suction — How We Pick — Our published method, including the scoring rubric, the three-year running-cost formula and an explicit statement of what published specifications cannot tell you.
