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iRobot Roomba 105 Combo review

Seventy-five days hands-free, LiDAR, and carpet avoided rather than lifted.

Where this ends up Two hundred and ninety-nine dollars, and the cheapest route to a Roomba with a self-emptying dock. Its suction is published as seventy times a discontinued 2010 product, which cannot be compared with anything on this shelf.

What the maker puts in writing

  • “UP TO 75 DAYS HANDS-FREE CLEANING… a bag that traps 99% of allergens as small as 0.7 microns”
  • “DEVOURS DIRT WITH 70X MORE POWER-LIFTING SUCTION… 20% better edge and corner cleaning with an edge-sweeping brush” — Compared to Roomba 600 series robots
  • “ClearView LiDAR quickly maps your home… specialized sensors prevent falling down stairs”
  • “automatically detects and avoids carpets while mopping so your rugs stay dry – no complex programming required”
  • “the built-in mop with a micro-pump controlling water flow and keeping the mopping pad uniformly moist… choose SmartScrub for 2x deeper scrubbing”
  • “WHAT’S IN THE BOX. 1 Roomba 105 Combo robot, 1 AutoEmpty Dock, 1 Extra Mop Pad”
  • Catalog: 339 × 335 × 104 mm (13.3 × 13.2 × 4.09 in)

A suction figure that cannot be compared

“70X more power-lifting suction Compared to Roomba 600 series robots.”*

The Roomba 600 series is discontinued, and this listing does not say what it lifted. Seventy times an unknown number is an unknown number.

So this machine cannot be ranked against anything else on the shelf — and four iRobot listings here use the same convention:

Roomba 105, this — 70X Roomba 105X, $344 — 70X Roomba 505X, $778.90 — up to 70X Roomba 705X, $1399.99 — 175x

Which means you cannot rank the iRobots against each other either, beyond knowing the 705X claims two and a half times the 505X.

And the odd part: iRobot publishes pascals on its other two listings on this very shelf. The 115X at $469.99 gives 15,000 Pa; the 415X at $668.95 gives 20,000 Pa.

Same maker, same shelf, two conventions — and the two newest models use the comparable one.

For context, the figures you can compare run from 6000 Pa (TRDIOL) to 30,000 Pa (ECOVACS T90 PRO). Four of these six iRobots opt out of that range entirely.

The cheapest self-emptying dock here

$299, 75 days, and that is the argument for this listing.

A self-emptying dock changes the ownership of a robot vacuum more than any cleaning specification does. Without one, the robot’s own bin holds a few hundred milliliters and you empty it every other run — which is the chore that makes people stop using them.

The shelf’s intervals: TRDIOL 120 days (4 L), iRobot 115X 90 (2.5 L), iRobot 415X 90, 105/105X/505X/705X 75, eufy E25 ~75 (3 L), roborock Q10 S5+ 70 (2.7 L), eufy Omni C20 60 (3.1 L), Shark 60 (bagless), roborock Qrevo S Pro 7–9 weeks (2.7 L).

Only one listing states the household behind the figure, and it is the eufy Omni C20: “*Based on a 3-person household without pets; intervals vary.” On a shelf where every listing sells itself on pet hair, that is the qualification the other twelve need.

Ninety-nine per cent at nought point seven microns

“a bag that traps 99% of allergens as small as 0.7 microns.”

Worth reading carefully, because the thresholds on this shelf are not the same.

The Shark Matrix Plus publishes “True HEPA filtration captures and traps 99.97% of dust and allergens (down to 0.3 microns)”. That is the standard HEPA definition.

This bag claims 99% at 0.7 microns — a lower percentage at a larger particle size, so an easier test on both axes. The sibling 115X claims “99% of pollen and mold” with an “AllergenLock” bag that “seals on removal”, and that sealing is the genuinely useful part: the dustiest moment in owning one of these machines is emptying it.

A sealed bag is also why the Shark’s bagless base is a trade rather than a win: no consumable, but you tip a bin.

A micro-pump, which is the right way to wet a pad

“a micro-pump controlling water flow and keeping the mopping pad uniformly moist.”

This is a better piece of engineering than it sounds, and it is the detail that separates a mopping robot from a robot dragging a damp cloth.

A reservoir that gravity-feeds a pad soaks the front edge and leaves the back dry, and it keeps wetting the floor when the machine stops. A pump meters water as the machine moves, so the pad stays evenly damp and a wooden floor never gets a puddle.

SmartScrub adds pressure for “2x deeper scrubbing”, though the multiplier has no stated basis.

What this does not do is scrub at a rate. Four listings publish one: the roborock Q10 S5+ at 3000 oscillations a minute (50 Hz), the iRobot 705X at 200 rpm, the eufy Omni C20 at 180 rpm with 6N of pressure, and the Shark at 100 a minute — which it calls “sonic” and which is 1.67 Hz.

A pad kept evenly moist lifts fresh marks well. For a dried-on splash, oscillation or rotation is what breaks the bond, and this listing offers pressure instead.

The dock empties, and does not wash

This is the real structure of iRobot’s range on this shelf, and it is not the model numbers:

AutoEmpty dock — empties dust, leaves the pad to you: 105 ($299), 105X ($344), 115X ($469.99) AutoWash dock — empties, washes and heat-dries the pad: 415X ($668.95), 505X ($778.90), 705X ($1399.99)

So after every mopping run here, the microfiber pad is damp and dirty until you take it off and rinse it. The box includes “1 Extra Mop Pad”, which is an acknowledgement of exactly that.

The ECOVACS T90 PRO puts the consequence bluntly: “Dirty pads re-soil floors.”

Six machines on this shelf wash the mop automatically, and three wash it during the run — the eufy E25 “refreshes the roller mop 2 times per second”, the ECOVACS “in real time”, the iRobot 705X “continuously… during use”.

For $299 with a self-emptying dock, hand-rinsing a pad is a fair trade. It is simply the part that does not disappear.

What is not published

No pascal figure, as above.

No runtime. Only the eufy Omni C20 (132 min), the eufy E25 (125 min, “vacuum + mop, standard mode”) and the sibling 115X (as an area, “up to 900 sq ft/charge”) give one.

No noise figure, where the roborock Qrevo S Pro publishes 55 dB and the eufy E25 “≤61dB (max mode)”.

No mop lift, because there is none — carpet is avoided instead.

No water tank capacity, which nothing on this shelf publishes.

No weight, which is true of all five iRobot listings here. The catalog gives 104 mm of height, which places it in the taller half: the 115X is 79 mm and the 415X 84 mm, both from the same maker.

Availability

Read on the day this page was built: $300 at the American Amazon shop.

Read from Keepa on the day this page was last revised; stock and price both move without notice.

Prices quoted in this text were read on 2026-10-04. The live price is at the top of the page.

What it does well, and badly

Strengths

  • The cheapest self-emptying dock on this shelf, at seventy-five days
  • A micro-pump that keeps the pad evenly damp rather than soaking it
  • Full LiDAR mapping and cliff sensors at under three hundred dollars

Compromises

  • Publishes suction as a multiple of a discontinued product, not in pascals
  • Avoids carpet rather than lifting over it, so rug edges stay unmopped
  • The dock does not wash the pad, so you rinse it by hand

Specifications

Suction70X more than the Roomba 600 series — no pascal figure, see the FAQ
Self-emptyingUp to 75 days, with a bag trapping 99 per cent of allergens at 0.7 microns
CarpetDetected and AVOIDED while mopping — not lifted over, see the FAQ
MopA microfiber pad with a micro-pump keeping it uniformly moist
SmartScrubClaimed at 2× deeper scrubbing
NavigationClearView LiDAR, with cliff sensors
Edge brushClaimed at 20 per cent better edge and corner cleaning
ModesVacuum only, mop only, or combined
AdjustableCleaning passes, suction levels, and solution pumped onto the pad
In the boxRobot, AutoEmpty dock, one extra mop pad
Mop washingNone — the AutoEmpty dock empties dust only
Height104 mm (4.09 in) per the catalog
RuntimeNot published
Amazon referenceB0DWFZ8Q7M
EAN0885155046550

The questions we hear

What does "70X more suction" actually mean?

Nothing you can compare, and that is the problem. The footnote reads "*Compared to Roomba 600 series robots" — a product line discontinued years ago, whose own suction figure this listing does not state. So 70 × an unknown number is an unknown number, and it cannot be ranked against anything else on this shelf. Four iRobot listings here use that convention: this one, the 105X at $344 (70X), the 505X at $778.90 (70X) and the 705X at $1399.99 (175x). Which means you cannot even rank the iRobots against each other usefully — only that the 705X claims two and a half times the 505X. And the oddity is that iRobot publishes pascals on its other two listings: the 115X at $469.99 gives 15,000 Pa and the 415X at $668.95 gives 20,000 Pa. Same maker, same shelf, two conventions. For context, the figures that are comparable here run from the TRDIOL’s 6000 Pa to the ECOVACS T90 PRO’s 30,000 Pa — a factor of five, which is the range this listing opts out of.

Is avoiding carpet better than lifting the mop?

It is simpler and it costs you coverage. This listing publishes: "automatically detects and avoids carpets while mopping so your rugs stay dry – no complex programming required." That keeps rugs dry reliably, with no mechanism to fail. What it means in practice is that the machine will not mop up to a rug: it stops short, so the hard floor along a rug’s edge — exactly where grit collects — stays unmopped. Five listings on this shelf lift the mop instead and publish the height: the ECOVACS T90 PRO at 0.6 inch (15.2 mm), the eufy E25 at 10.8 mm (0.43 in), the iRobot 415X and roborock Qrevo S Pro at 10 mm (0.39 in), the roborock Q10 S5+ at 8 mm (0.31 in). Three more lift without a figure, including the iRobot 705X, which uses "a built-in cover" over the roller. A lifted mop lets the machine mop the hard floor right to the rug and then drive across it dry. Its own sibling the 115X does something different again: a software "No Mop Zone" you draw in the app, which is avoidance you control rather than avoidance it decides.

How is this different from the 105X at $344?

Forty-five dollars, and on the published figures the difference is small. Both have the AutoEmpty dock at 75 days, the same bag trapping "99% of allergens (0.7 microns)", the same ClearView LiDAR, the same 70X suction claim, the same SmartScrub at "2× deeper", the same carpet avoidance, and the same 104 mm (4.09 in) catalog height. What the 105X adds in its own words: a "3-Stage Cleaning System" described as intense suction plus a multi-surface brush plus an edge-sweeping brush — where this listing calls its arrangement a "4-stage cleaning system" in the description, so the numbering is inconsistent between two listings from one maker. The 105X also claims "Confident cleaning, day or night" obstacle avoidance and names the voice assistants. Honestly read, these are the same machine with different marketing. The real step up in the iRobot range on this shelf is the dock: the 415X at $668.95 is the cheapest with an AutoWash dock that washes and heat-dries the pad at 113 °F, where every AutoEmpty model leaves the pad to you.

Set beside the neighboring cleaning machines

cleaning machines from the same category, at nearby prices. Only what all of them publish is shown: a column with holes compares nothing.

Model Price SuctionSelf-emptyingNavigationMop washing
iRobot Roomba 105 Combo $300 70X more than the Roomba 600 series — no pascal figure, see the FAQUp to 75 days, with a bag trapping 99 per cent of allergens at 0.7 micronsClearView LiDAR, with cliff sensorsNone — the AutoEmpty dock empties dust only
roborock Q10 S5+ $280 10,000 Pa HyperForceUp to 70 days into a 2.7 liter bagPreciSense LiDAR, 360 degree, with multi-level mappingNone — the station empties dust only, unlike its Qrevo stablemate
iRobot Roomba 105X Combo $345 70X more than the Roomba 600 series — the same claim as the cheaper Roomba 105Up to 75 days, sealed bag locking in 99 per cent of allergens at 0.7 micronsClearView LiDAR, cleaning in rowsNone — the AutoEmpty dock empties dust only
TRDIOL RV251 $230 6000 Pa — the lowest published figure hereUp to 120 days into a 4 liter bag — the longest interval on this shelf360 degree LiDAR, with four saved floor mapsNone — the station empties dust and does not wash the cloth

Where the models are not equal, in cleaning machines

  • If price decides: TRDIOL RV251, at $230.
  • Highest Self-emptying in the table: TRDIOL RV251 (Up to 120 days into a 4 liter bag — the longest interval on this shelf).

Price and availability, for cleaning machines

Details checked on October 4, 2026.

Who this one is for, among cleaning machines

Hard floors with few rugs, where a self-emptying dock matters more than scrubbing

What buyers actually choose

Amazon reports what buyers took in the month before this page was last checked: at least 2,000.

The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.

Sources

Specifications: the manufacturer sheet for cleaning machines and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.

How these cleaning machines are assessed here