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 short answer: the Roomba 105 Vac with AutoEmpty Dock. It publishes 200 minutes of rated runtime — the longest of any robot on this site — plus ClearView LiDAR and a dock rated up to 75 days hands-free, from the manufacturer with the longest app support record in the category. If you want a sealed dock with published anti-tangle brushes on both rollers, the Roborock Q7 M5+ publishes 150 minutes and 7 to 9 weeks. And if the thing you actually want is to forget it exists, the ILIFE A30 Pro claims up to 280 days across the five bags in its box.
Why a big house inverts the usual ranking
In a one-bedroom apartment almost any robot works, because the floor is small enough that even a bouncing, unmapped machine covers it by persistence. Scale the floor up and three things break at once: a robot without a map wastes most of its battery re-covering ground it has already done; a robot without recharge-and-resume simply stops partway and never finishes; and a robot with a small bin fills before it has covered the area, so the last third of the house gets a machine pushing dirt around.
None of those three failures is a suction problem, which is why the pascal figures that dominate this category's marketing are close to irrelevant on this page. Coverage is the product. A machine that reliably finishes 1,800 square feet at moderate suction beats one that manages 900 impressively.
What we looked at
Published rated runtime. The headline figure for area coverage, and unlike pascals it means roughly the same thing at every brand. The spread here is 120 to 200 minutes.
Recharge and resume. The feature that decides whether a robot finishes a large floor at all: it returns to the dock, charges, and picks up where it stopped. Shark publishes it explicitly; it is implied by LiDAR mapping on the others.
Multi-floor mapping. A large home is usually more than one story. Roborock publishes multi-floor maps on both machines here; Lefant publishes them on the M2 Plus.
Dock interval, because in a big house the bin fills faster and the emptying chore scales with the floor. Published intervals here run from 60 days to a claimed 280.
On-board bin size, which matters between dock visits and matters more the further the machine is from the dock.
No-go zones and room targeting, because in a large home you will want to send it somewhere specific rather than run the whole floor.
The dock is not a luxury at this size
Everywhere else on this site we treat a self-emptying dock as a convenience with an ongoing bill, and the self-empty page prices that honestly. In a large home the calculation shifts, because the bin fills in proportion to the floor area while the bin itself stays the same size. A 270 ml on-board bin that lasts a week in an apartment is a bin you are emptying every run in a big house.
Published dock intervals: Shark 60 days on a bagless base with true HEPA at 99.97% down to 0.3 microns — no bag to buy, ever. iRobot up to 75 days, with dock bags rated to trap 99% of allergens as small as 0.7 microns. Roborock 7 to 9 weeks in a sealed 2.7-liter bag. Lefant up to 75 days, two bags supplied. ILIFE up to 280 days across five bags, which is a different order of magnitude and the longest claim on this site.
Those are manufacturer claims measured under their own conditions, and every one of them assumes a dirt load that a big house with pets will exceed. Read them as a ranking, not a schedule.
#
Product
Best for
Score
Price
01
Roborock Q7 M5+ Robot Vacuum and Mop10,000 Pa published and a 2.7-liter sealed dock bag rated at seven to nine weeks: the pet-hair answer, at a real price.
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.
ILIFE A30 Pro Robot Vacuum and Mop10,000 Pa and a five-bag box that ILIFE rates at up to 280 days of hands-free running — the longest published interval on the site.
Shark AI Robot with XL HEPA Self-Empty Base (AV2501AE)The only self-empty dock here with no bags to buy — bagless, HEPA-filtered and rated at 60 days, which changes the three-year arithmetic completely.
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.
Ranked by our published rubric. For a large home, read the runtime and dock-interval rows first — those two figures decide whether the machine finishes and whether you have to think about it.
01 · Best self-empty for pet hair
Roborock Q7 M5+ Robot Vacuum and Mop
10,000 Pa published and a 2.7-liter sealed dock bag rated at seven to nine weeks: the pet-hair answer, at a real price.
JawScrapers main brush plus zero-tangle side brush
Mopping
Three adjustable water levels, simultaneous with vacuuming
Rated noise
65 dB
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
+Highest published suction figure on the site, at 10,000 Pa
+2.7-liter dock bag is larger than the iRobot's and rated for a comparable interval
+Anti-tangle on both brushes, which is the pet-hair spec that matters
+150 minutes plus recharge-and-resume covers a large floor
Where it stops
−Dock bags are a permanent consumable
−The dock is large and 65 dB when emptying is genuinely startling the first time
−Pa figures remain incomparable between brands, however impressive 10,000 sounds
Who it is for
Pet households with real square footage, where the on-board bin is the daily annoyance.
Skip it if
You live in a studio. This is a whole-floor machine with a dock the size of a wastebasket and you will resent the footprint.
Our score: 8.5 out of 10
Published suction9.5
Navigation9.0
Runtime8.5
Bin and dock9.5
Running cost6.0
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 · Longest dock interval
ILIFE A30 Pro Robot Vacuum and Mop
10,000 Pa and a five-bag box that ILIFE rates at up to 280 days of hands-free running — the longest published interval on the site.
2.5 liters, five in the box, rated up to 280 days hands-free in total
Tank
2-in-1 integrated: 200 ml dustbin plus 200 ml water tank
Navigation
LDS LiDAR with SLAM mapping, no-go zones and virtual walls
Weight
10.4 lb
Rated noise
72 dB
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
+Five bags in the box is real money that the competition charges separately for
+Full LiDAR SLAM mapping with virtual walls at a budget price
+10,000 Pa published, matching the dearest robot here
Where it stops
−72 dB is the loudest robot figure on the site
−200 ml dustbin is the smallest here — the 2-in-1 tank splits capacity with the water
−The 150-minute rating is explicitly the gentle-suction number
Who it is for
Buyers optimizing for the longest possible gap between touching the thing.
Skip it if
You want to run it while you are home. At 72 dB it is a run-it-when-you-are-out machine.
Our score: 8.2 out of 10
Published suction9.0
Navigation8.5
Runtime8.0
Bin and dock8.5
Running cost7.0
Scored against the published rubric on How We Pick. These are judgments about spec sheets, not measurements.
04 · Best bagless self-empty
Shark AI Robot with XL HEPA Self-Empty Base (AV2501AE)
The only self-empty dock here with no bags to buy — bagless, HEPA-filtered and rated at 60 days, which changes the three-year arithmetic completely.
True HEPA, rated to capture 99.97% of dust and allergens down to 0.3 microns
Rated runtime
120 minutes with recharge and resume
Navigation
360-degree LiDAR with Matrix Clean grid coverage
Brushroll
Self-cleaning
Weight
15.3 lb
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
+Bagless dock — no consumable at all, which no other self-empty robot on this site can say
+True HEPA on the dock, so emptying does not re-release what it collected
+Matrix Clean makes multiple passes over dirty areas rather than one
+Self-cleaning brushroll
Where it stops
−Emptying a bagless dock does put you back in contact with the dust, HEPA or not
−No published suction figure in any unit
−15.3 lb with the base is the heaviest robot package here
Who it is for
Anyone who has done the maths on dock bags over five years and did not like the answer.
Skip it if
Allergies are the reason you are buying a self-empty robot at all. A bagged dock is the better answer for that specific problem, even though it costs more to run.
Our score: 8.1 out of 10
Published suction6.0
Navigation8.5
Runtime8.0
Bin and dock9.0
Running cost9.0
Scored against the published rubric on How We Pick. These are judgments about spec sheets, not measurements.
05 · 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.
06 · 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.
07 · Cheapest self-empty
Lefant M2 Plus Robot Vacuum and Mop
6,000 Pa, LiDAR mapping and a 2.5-liter self-empty station rated at 75 days, from the least-known brand here.
2.5 liters, rated up to 75 days hands-free; ships with two bags
Dustbin
250 ml on-robot
Water tank
300 ml, three suction levels
Navigation
360-degree LiDAR with multi-floor mapping and no-go zones
Obstacle detection
190-degree PSD detection, stated to avoid objects from 1.6 inches away
Wi-Fi
Dual-band 2.4 GHz and 5 GHz
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
+Self-empty dock at the bottom of the price band, which is where the genuine saving is in this category
+Carpet detection lifts or avoids depending on whether the mop holder is fitted
+Dual-band Wi-Fi — the only robot here that does not force you onto 2.4 GHz
+Two dock bags in the box
Where it stops
−6,000 Pa is the lowest published suction of the self-empty machines here
−250 ml on-robot bin is tiny, which the dock only partly excuses
−Small brand: app longevity and dock-bag availability in year four are unknowns
Who it is for
Buyers who want self-emptying at the lowest possible entry price and accept the brand risk.
Skip it if
You want the app to still work in 2032. iRobot and Roborock are safer bets on software support, and a self-empty robot is worthless once its dock bags stop being sold.
Our score: 7.7 out of 10
Published suction7.0
Navigation8.5
Runtime8.5
Bin and dock8.5
Running cost6.0
Scored against the published rubric on How We Pick. These are judgments about spec sheets, not measurements.
The one to skip
Skip the Roborock Q7 L5 for a genuinely large home, despite it being the value pick elsewhere on this site. It publishes the same 150-minute runtime, the same 360-degree LiDAR with multi-floor maps and the same anti-tangle brush pair as its dearer sibling — but it has no dock, and its on-board bin is 270 ml. In a big house that combination means emptying it every single run, which is the chore a robot is supposed to remove. It is an excellent machine in a smaller home and the wrong shape for this page.
And weigh the ILIFE A30 Pro's 280-day claim against its 200 ml bin. The dock interval is the longest here by a factor of three; the on-board bin is the smallest. Those two facts coexist because the machine is designed to return to the dock often. In a large home that means more trips back and forth and more of the runtime spent travelling rather than cleaning — which the runtime figure does not capture.
Multi-floor homes need one more thing
A large house is usually a tall one, and no robot on this site does stairs. If the machine is going to work upstairs as well, it needs multi-floor maps — the ability to store more than one floor plan and recognize which one it is on. Roborock publishes multi-floor mapping on both the Q7 L5 and the Q7 M5+; Lefant publishes it on the M2 Plus.
The alternative, and a legitimate one, is a second machine and a second dock. On published prices two mid-range robots often cost less than one flagship, and each keeps its own floor without you carrying anything between them. For the stairs themselves you still want a handheld or a Lift-Away — the stairs roundup covers that.
What we cannot tell you
How much of your specific floor plan any of these actually covers on one charge. Runtime is published, but coverage depends on furniture density, room count, floor type and how often the machine returns to dock — and no manufacturer publishes a square-footage figure that means anything. We have not run these machines. What the published figures do support is the ordering on this page, and that is what we are claiming. Our method is explicit about the rest.
How to choose in one paragraph
If the floor is large and you want the longest runtime with the safest long-term app, buy the Roomba 105 Vac with AutoEmpty Dock. If a pet sheds across all of it, buy the Roborock Q7 M5+ — anti-tangle on both brushes plus a sealed dock is the combination that survives a big shedding house. If you want the longest possible gap between interventions, the ILIFE A30 Pro's 280-day claim is unmatched here. If somebody in the house has allergies, the Shark AV2501AE's bagless true-HEPA base removes the bag bill entirely. And if the house has more than one story, check the multi-floor map line before anything else.
Common questions
What is the best robot vacuum for a large home?+−
On published specifications, the Roomba 105 Vac with AutoEmpty Dock: 200 minutes of rated runtime — the longest on this site — ClearView LiDAR mapping, and a dock rated up to 75 days hands-free. For a sealed dock with published anti-tangle brushes on both rollers, the Roborock Q7 M5+ publishes 150 minutes and a 7-to-9-week interval.
How much runtime does a robot vacuum need for a big house?+−
More than the marketing implies, and the honest answer is that runtime alone does not settle it — recharge-and-resume matters as much, because it lets a machine finish a floor across two charges instead of stopping partway. Published runtimes here run 120 to 200 minutes, and every figure is measured by its own manufacturer, usually in a low-power mode.
Is a self-emptying dock worth it in a large home?+−
This is the one household where it leans clearly yes. The bin fills in proportion to floor area while the bin itself stays the same size, so a 270 ml on-board bin that lasts a week in an apartment is emptied every run in a big house. Published intervals here run from 60 days (Shark, bagless) to a claimed 280 days (ILIFE, five bags).
Can one robot vacuum handle a two-story house?+−
Only if it publishes multi-floor mapping, and only if you carry it between floors — no robot on this site does stairs. Roborock publishes multi-floor maps on the Q7 L5 and Q7 M5+, and Lefant on the M2 Plus. On published prices, two mid-range robots with their own docks often cost less than one flagship and remove the carrying entirely.
Does suction matter for a large home?+−
Less than almost anything else, and the pascal figures brands lead with are not comparable between manufacturers anyway. In a big house the failures are coverage failures: no map means wasted battery, no recharge-and-resume means it never finishes, and a small bin means the last third of the floor gets a full machine pushing dirt around.
What is the longest a robot vacuum can go without being emptied?+−
On published claims, the ILIFE A30 Pro states up to 280 days across the five bags supplied in its box — the longest interval on this site by a wide margin. iRobot and Lefant publish up to 75 days, Roborock 7 to 9 weeks, and Shark 60 days on a bagless base. All are manufacturer claims measured under their own conditions.
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.
