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iRobot Roomba 115X Combo review

15,000 Pa published, 79 mm (3.11 in) tall, and a bag that seals as you lift it out.

Where this ends up The slimmest robot on this shelf at seventy-nine millimeters, and one of only two iRobots here that publishes its suction in pascals rather than as a multiple of a 2010 product. Its dock still does not wash the pad.

What the maker puts in writing

  • “Vacuums with a suction power of 15,000 Pa to lift crumbs and fine dust while the pad mops everyday buildup, covering up to 900 sq ft/charge”
  • “Empties into the AutoEmpty dock; the 2.5 L AllergenLock bag traps 99% of pollen and mold and seals on removal, no dust cloud and hands stay clean” — up to 3 months
  • “The washable microfiber pad gently lifts dusty pawprints and light smudges on sealed hard floors, and you can set a No Mop Zone so rugs stay protected”
  • “CLEARVIEW LiDAR MAPS ROOMS AND AVOIDS OBSTACLES — Cleans in neat rows, even in low light”
  • “An extended mop pad and edge-sweeping brush work together to clean along baseboards and into corners other robots miss”
  • “SmartScrub mops 2× deeper; choose 1-2 cleaning passes, 4 suction levels, and 3 mopping-water or solution* levels”**
  • “LOW-TOUCH UPKEEP — Launder the washable pad as needed; replace filters and brushes every 3-6 months”
  • Catalog: 298 × 303 × 79 mm (11.7 × 11.9 × 3.11 in)

Seventy-nine millimeters, which is the reason to buy this one

The slimmest machine on this shelf, and height is the specification you cannot work around afterwards.

this 79 mm · iRobot 415X 84 mm · eufy Omni C20 85 mm · roborock Qrevo S Pro 96 mm (3.8 in) · iRobot 105, 105X, 705X 104 mm · iRobot 505X 107 mm · Shark 145 mm

Most sofa and bed frames sit at 100 to 127 mm (3.94 to 5 in). So the difference between this and the Shark is the difference between the dust under your furniture being dealt with every day and never being reached at all.

What usually makes a robot tall is the LiDAR turret — a spinning laser on the lid. This one has LiDAR and is still the lowest here, which is the engineering worth paying for.

One caution that applies to every figure above: only the eufy Omni C20 publishes the clearance it actually needs rather than its own height — 85 mm (3.35 in) of body asking for “as little as 3.54” clearance”, which is 90 mm (3.54 in). Add a few millimeters before measuring your own furniture.

And the sibling 415X claims a “46% slimmer design* *Compared to Roomba 105”, where the catalog gives those two as 84 mm (3.31 in) and 104 mm (4.09 in) — 19 per cent.

Fifteen thousand pascals, and why that is unusual for an iRobot

This is one of two iRobot listings on this shelf that publishes a real suction figure. The other is the 415X at $668.95, with 20,000 Pa.

The remaining four publish a multiple of a discontinued product:

Roomba 105 ($299) — 70X · 105X ($344) — 70X · 505X ($778.90) — up to 70X · 705X ($1399.99) — 175x

All footnoted “*Compared to Roomba 600 series robots”, and none of them says what the 600 series lifted. Seventy times an unknown is an unknown.

So iRobot’s $299 and $1399.99 machines cannot be compared with anything here, while its $469.99 one can.

The comparable field: ECOVACS T90 PRO 30,000 Pa · iRobot 415X and eufy E25 20,000 · roborock Qrevo S Pro 18,500 · this 15,000 · roborock Q10 S5+ 10,000 · eufy Omni C20 7000 · TRDIOL 6000.

Fifteen thousand places this comfortably in the upper half.

Nine hundred square feet, which is not a runtime

“covering up to 900 sq ft/charge.”

An area rather than a time, and it is the only listing on this shelf that does it this way.

The three that publish a time: the eufy Omni C20 at 132 min, the eufy E25 at 125 min — specified as “vacuum + mop, standard mode”, which is the demanding case — and nobody else.

An area figure is arguably more useful, because it answers the question you have: will it finish my flat in one go? Nine hundred square feet is a decent two-bedroom.

But it is also less honest in one way: area depends entirely on how dirty the floor is and how many passes it takes, where a runtime is a runtime. And neither this nor any iRobot listing here mentions recharge and resume — the behavior that makes a short battery irrelevant — which the Shark and eufy Omni C20 both publish explicitly.

A bag that seals as you lift it

“the 2.5 L AllergenLock bag traps 99% of pollen and mold and seals on removal, no dust cloud and hands stay clean.”

The sealing is the right thing to emphasize, because emptying is the dustiest moment in owning one of these machines, and a bag that closes itself on the way out solves it entirely.

Worth setting against the alternative. The Shark Matrix Plus has a “bagless base with no replacement bags required” — no consumable, and a bin you tip, which puts the dust back in the air. Its answer is to filter the base: “True HEPA… 99.97% of dust and allergens down to 0.3 microns”.

99% at 0.7 microns here — which is the figure the 105X and 105 also quote — is a lower percentage at a larger particle, so an easier test on both counts.

On interval, 90 days from 2.5 liters is 28 ml a day, the thinnest assumption on this shelf. For comparison: TRDIOL 33 ml/day, roborock Q10 S5+ 39, eufy E25 40, roborock Qrevo S Pro 43–55, eufy Omni C20 52. And only the eufy Omni C20 states its household — “*Based on a 3-person household without pets”.

Four suction levels and three water levels

More control than most of this shelf offers, and the water levels are the ones you will actually use: a bathroom wants more water than a hallway, and too much water is the single way these machines damage a wooden floor.

One or two passes is the other setting worth having. The Shark makes multiple passes its headline — “Matrix Clean… a precision matrix grid, taking multiple passes” — and crossing your own path is genuinely how you get carpet clean.

SmartScrub adds pressure, claimed at “2× deeper” with no stated basis. It appears on four iRobot listings here and is quantified on none — where the eufy Omni C20 publishes “6N of downward pressure at 180 RPM”, the only force figure on this shelf.

The extended mop pad is the detail that goes with the edge-sweeping brush: a pad reaching beyond the body is how a round robot mops along a skirting board rather than six centimeters away from it. The ECOVACS T90 PRO does the same thing further, extending its roller “0.6 inches beyond the body”.

The dock empties, and does not wash

iRobot’s six listings on this shelf divide on the dock, not the model number:

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

At $469.99 this is the most expensive AutoEmpty machine, which means nearly five hundred dollars and you still rinse the pad in a sink.

The listing is honest about the upkeep: “Launder the washable pad as needed; replace filters and brushes every 3-6 months.”

For comparison the roborock Qrevo S Pro at $429.99 — forty dollars less — washes its mops at 167 °F and dries them with warm air. The ECOVACS T90 PRO does it at up to 167 °F with 145 °F drying.

And the ECOVACS states what that is for: “Dirty pads re-soil floors.”

What is not published

No runtime as a time, as above.

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

No mop lift, because there is none — rugs are handled by a No Mop Zone you draw yourself.

No scrubbing rate or pressure.

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

No weight, true of all five iRobot listings here.

And 2.4 GHz Wi-Fi required for setup, as on all thirteen.

Availability

Read on the day this page was built: $470 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

  • Seventy-nine millimeters, which is what decides whether it reaches under a sofa
  • Publishes pascals, where four of its own stablemates publish a multiplier
  • A bag that seals as you remove it, which is the dustiest moment in owning one

Compromises

  • The dock empties dust but does not wash the pad, at nearly five hundred dollars
  • No mop lift — rugs are protected by a zone you draw, not by a mechanism
  • Publishes an area per charge rather than a runtime, which cannot be compared

Specifications

Suction15,000 Pa — a real figure, unlike four other iRobot listings here
Height79 mm (3.11 in) per the catalog — the slimmest machine on this shelf
CoverageUp to 900 sq ft per charge — an area rather than a runtime
Self-emptyingUp to 90 days into a 2.5 liter AllergenLock bag trapping 99 per cent of pollen and mold
Bag sealingSeals on removal, so there is no dust cloud when you change it
CarpetA settable No Mop Zone — software, not a lift
MopAn extended washable microfiber pad, with SmartScrub claimed at 2× deeper
SettingsOne or two passes, four suction levels, three water or solution levels
NavigationClearView LiDAR, stated to work in low light
MaintenanceReplace filters and brushes every 3 to 6 months, per the listing
Mop washingNone — the AutoEmpty dock empties dust only
RuntimeNot published as a time
NoiseNot published
Amazon referenceB0H34W2MS8
EAN0885155060457

The questions we hear

Why does this iRobot publish pascals when others do not?

Because it is one of the two newest listings in the range here, and the convention changed. This publishes "a suction power of 15,000 Pa" and the 415X at $668.95 publishes "20,000 Pa". The other four iRobot listings on this shelf publish a multiple instead: the 105 ($299) and 105X ($344) at "70X more power-lifting suction", the 505X ($778.90) at "up to 70X", and the 705X ($1399.99) at "175x" — all footnoted "*Compared to Roomba 600 series robots", a discontinued line whose own figure none of them states. So those four cannot be ranked against the nine non-iRobot machines here, or against these two. Which produces the odd result that iRobot’s $299 and $1399.99 models are both uncomparable while its $469.99 one is not. Where 15,000 Pa sits on the comparable field: ECOVACS T90 PRO 30,000, iRobot 415X and eufy E25 20,000, roborock Qrevo S Pro 18,500, this 15,000, roborock Q10 S5+ 10,000, eufy Omni C20 7000, TRDIOL 6000.

How much does 79 millimeters matter?

It is the figure you cannot change later, and this is the lowest on the shelf. The spread: this 79 mm (3.11 in), iRobot 415X 84 mm (3.31 in), eufy Omni C20 85 mm (3.35 in), roborock Qrevo S Pro 96 mm (3.8 in), iRobot 105, 105X and 705X 104 mm (4.09 in), iRobot 505X 107 mm (4.21 in), Shark 145 mm (5.71 in). Most sofa and bed frames sit at four to five inches — 100 to 127 mm (3.94 to 5 in) — so the difference between 79 mm (3.11 in) and 145 mm (5.71 in) is the difference between the dust under your furniture being cleaned every day and never. And the gap is usually the LiDAR turret: a spinning laser on top of the body adds height, which is why the tallest machine here is also one with 360-degree LiDAR. Worth knowing that only one listing on this shelf publishes the clearance it actually needs rather than its own height — the eufy Omni C20, which is 85 mm (3.35 in) and asks for "as little as 3.54" clearance", or 90 mm (3.54 in). Add a few millimeters to any of these figures before measuring your own furniture. The sibling 415X claims a "46% slimmer design* *Compared to Roomba 105", and the catalog gives those as 84 mm (3.31 in) against 104 mm (4.09 in) — which is 19 per cent.

What is a No Mop Zone, and is it as good as lifting?

It is a line you draw in the app, and it is the weakest of the three approaches on this shelf. The listing publishes: "you can set a No Mop Zone so rugs stay protected and won’t get wet while you mop." So the protection is software you configure, not a sensor and not a mechanism — which means it works exactly as well as your map does, and a rug moved to a new spot is a rug that gets wet. The three approaches here: lifting, with a published 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); detecting and avoiding, with no lift — the iRobot 105 and 105X, which "detect carpet and avoid mopping" automatically; and zoning, which is this. Lifting is best because the machine can mop the hard floor right up to a rug and then drive over it dry. Avoiding leaves that strip unmopped. Zoning leaves it unmopped and needs you to maintain the map.

What singles this model out

Measured against the median of its own aisle here — not against everything on sale.

  • Suction15,000 Pa — a real figure, unlike four other iRobot listings here-25 % off the median of this aisle
  • Height79 mm (3.11 in) per the catalog — the slimmest machine on this shelf-24 % off the median of this aisle
  • Self-emptyingUp to 90 days into a 2.5 liter AllergenLock bag trapping 99 per cent of pollen and mold+20 % off the median of this aisle

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 Suction
iRobot Roomba 115X Combo $470 15,000 Pa — a real figure, unlike four other iRobot listings here
Shark AV2610WA $445 Not published in pascals
iRobot Roomba 415X $400 20,000 Pa — a real figure, unlike four other iRobot listings here
eufy Omni C20 $380 Boost IQ automatically up to 7000 Pa

Where the models are not equal, in cleaning machines

  • If price decides: eufy Omni C20, at $380.

Price and availability, for cleaning machines

Details checked on October 4, 2026.

Who this one is for, among cleaning machines

Low furniture and hard floors, where seventy-nine millimeters is the deciding figure

What buyers actually choose

Amazon reports what buyers took in the month before this page was last checked: at least 10,000.

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