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Mopping / comparison

Mop combo, or two separate machines?

The answer depends on one thing: how much of your floor is carpet. Everything else is detail.

By Scooter M.Published
A bucket and mop standing beside cleaning supplies

Disclosure — some links on this page go to Amazon, and we earn a commission if you buy through them. It costs you nothing extra and it does not change what we recommend or in what order. The full disclosure.

If most of your floor is hard, buy one combo — the docks have got good enough that the old advice to separate them is out of date. If most of it is carpet, a combo carries a mop around a house that barely needs one, and a vacuum-only robot plus a cordless hard-floor mop is cheaper and works better. The vacuum-only robots actually worth buying for that setup are ranked on the best robot vacuums that do not mop.

This used to be an easy call in the other direction. Early combos dragged a damp cloth behind the vacuum and did neither job well. That is no longer true, and advice written before the current generation of washing docks is simply out of date.

The case for one combo

  • One machine, one dock, one app. Two robots means two charging stations taking wall space and two sets of consumables.
  • Vacuum and mop in one pass. On a mostly hard floor this halves the time the machine is running and the noise it makes.
  • The dock does the unpleasant part. Washing and drying a mop pad is the job people stop doing, which is why a self-cleaning dock is what actually makes a mop get used.
  • Mop lift has got good. Published lifts up to 17mm, and iRobot's retracting arm, mean crossing a rug is no longer an automatic disaster.

The case for two machines

  • Carpet dominates. If four rooms out of five are carpeted, the mop is dead weight on nearly every run and the lift mechanism is one more thing to fail.
  • Deep pile. No published mop lift clears a shag. A vacuum-only robot has no wet pad to worry about at all.
  • You want real scrubbing. A dedicated hard-floor washer applies more water and more pressure than any robot, and on a tiled kitchen that difference is visible.
  • Budget. A capable vacuum-only robot plus a decent cordless mop often costs less than a flagship combo and covers both jobs properly.

The specification that decides it

Published mop lift — the figure that decides whether a combo suits you

12 of 29 models publish this figure. Every number below links to the page it came from.

ModelStated mop liftCondition and source
Roborock Qrevo CurvXRoborock17mmSource: Roborock Qrevo Curv Series page — "17mm Max. Mop Lifting" (retrieved 2026-09-01)
Roborock Saros 10RRoborock17mmSource: Roborock Saros 10R product page — "17mm Mop Lift" (retrieved 2026-09-01)
Roborock Qrevo Curv S5XRoborockNot publishedNot stated on the listing.
Roborock Qrevo ProRoborockNot publishedNot stated on the listing.
Roborock Qrevo (QV 35A)RoborockNot publishedNot stated on the listing.
Dreame X50 UltraDreame10.5mmDreame states the mops raise 10.5mm during vacuuming to keep carpet dry.Source: Dreame X50 Ultra product page — mop lifting (retrieved 2026-09-01)
Dreame L40s UltraDreameNot publishedNo lift height stated on the listing.
Dreame X40 UltraDreameRemovable, plus a stated 10.5mm raiseDreame quotes the height difference before and after mop lifting as 10.5mm; the pads can also be dropped at the dock entirely.Source: Dreame model comparison — mop lifting height difference (retrieved 2026-09-01)
Dreame L10s UltraDreameNot publishedNot stated on the listing.
eufy X10 Pro Omnieufy12mmAuto-lifting on carpet detection.Source: eufy X10 Pro Omni product page — auto-lifting mop (retrieved 2026-09-01)
ECOVACS DEEBOT T30S ComboECOVACSNot publishedThe listing states auto mop lifting but gives no height.
iRobot Roomba Combo j9+iRobotAuto-retract — the mop lifts to the top of the robotiRobot describes it as an Auto-Retract Mopping System with back-and-forth pressure mopping. No millimeter figure is given because the pad leaves the floor plane entirely.Source: iRobot Roomba Combo j9+ product page — mopping system (retrieved 2026-09-01)
iRobot Roomba j9+iRobotNot publishedThis model does not mop.
iRobot Roomba Max 705 VaciRobotNot publishedThis model does not mop.
Shark PowerDetect 2-in-1 (AV2800ZE)SharkNot publishedNot stated on the listing.
Shark Matrix Plus 2-in-1SharkNot publishedNot stated on the listing.
Shark PowerDetect Self-Empty (AV2820S)SharkNot publishedVacuum-only model. There is no mop.
Roborock Q7 M5+RoborockNot publishedNot stated on Roborock's product page.
iRobot Roomba 105 VaciRobotNot publishedVacuum-only trim. There is no mop to lift.
iRobot Roomba Max 715 PetiRobotNot publishedVacuum-only trim. There is no mop to lift.
eufy Omni C28eufyNot publishedeufy does not state whether the HydroJet roller lifts clear of carpet, which is the figure that decides whether it wets a rug.
Dreame Aqua10 Ultra Roller CompleteDreame14mm, by sealing the roller rather than lifting a padDreame states that AutoSeal "automatically closes and raises 14 mm when moving onto the carpet". It is a different mechanism from a lifted pad: the roller housing shuts so the wet roller cannot touch the carpet at all.Source: Dreame Aqua10 Ultra Roller Complete product page — AutoSeal (retrieved 2026-09-26)
Narwal Flow 2Narwal12mmPublished plainly as a mop lifting height, which is more than most makers of roller mops manage.Source: Narwal Flow 2 product page — mop lifting (retrieved 2026-09-26)
Shark AI Ultra Self-Empty (AV2501S)SharkNot publishedVacuum-only model. There is no mop.
Narwal Freo Z10 TurboNarwal12mmPublished plainly, which is more than most makers manage at this price.Source: Narwal Freo Z10 Turbo product page — mop lifting (retrieved 2026-10-03)
ECOVACS DEEBOT X9 PRO OMNIECOVACS10mm automaticECOVACS calls the mechanism the Triple Lift System and states that on carpet it raises the mop to prevent wetting while boosting suction.Source: ECOVACS DEEBOT X9 PRO OMNI product page — mop lifting (retrieved 2026-10-03)
eufy Omni S2eufy1.1in (roughly 28mm)The highest mop lift figure on this site; the next highest published anywhere here is the 17mm Roborock states for the Qrevo CurvX and the Saros 10R. eufy states the chassis also raises for carpet up to 2in thick, but its regional pages disagree on that limit so it is not relied on.Source: eufy Omni S2 US product page — mop lift (retrieved 2026-10-17)
eufy Omni E28eufyNot publishedCONTESTED. eufy's E28 page says the mop lifts for carpet but gives no height; its US buying guide says 20mm and its FAQ says 12mm. Where a maker states two different figures for one machine we publish neither.
eufy Omni C20eufy10.4mmeufy states this as 0.41in in its FAQ and 10.4mm in the spec table. The two agree, which is worth noting on a brand whose other sheets do not.Source: eufy Omni C20 product page — mop auto-lifting (retrieved 2026-10-17)

Compiled from the manufacturers’ own published material — every row carries the date its figure was read. We have not measured any of these figures ourselves, see how we pick. Found an error? Tell us and we will correct it.

Measure your deepest carpet before you compare anything else. If your pile is deeper than the published lift on the models you are considering, a combo will either damp your carpet or spend every run routing around it, and the second is not the machine you thought you were buying.

A third option: the combo with a handheld

ECOVACS' T30S Combo ships a cordless stick vacuum that shares the robot's station. That is not a mop answer, it is a stairs answer, and it is the only honest one anyone sells — no robot climbs stairs. If your reason for considering two machines is the staircase rather than the mop, this is worth a look, and the wider comparison is on robot vacuum versus stick vacuum. If you have already decided on a combo, best robot vacuum and mop combos ranks them on the dock and the mop-lift figure.

Quick picks

Ranked on the published specifications below. Tap a row to jump to the full write-up.

#ProductBest forMop liftPrice
1
ECOVACS DEEBOT T30S Combo
ECOVACS DEEBOT T30S ComboShips with a cordless stick vacuum docked alongside the robot, which is the only honest answer to stairs anyone sells.
Stairs and upholstery the robot cannot reachNot published
2
iRobot Roomba Combo j9+
iRobot Roomba Combo j9+The mop arm retracts to the top of the robot rather than lifting a few millimeters, so it can mop and vacuum in one pass without routing around rugs.
Mopping without avoiding the carpetAuto-retract — the mop lifts to the top of the robot
3
Roborock Q7 M5+
Roborock Q7 M5+The Q7 M5's LiDAR and anti-tangle hardware, plus the self-emptying dock the plain M5 does not come with — and a stated bag capacity to go with it.
The cheapest self-emptying dock with real mappingNot published

Every figure in this table is linked to the page it came from in the write-ups below. We have not tested any of these machines.

ECOVACS DEEBOT T30S Combo
Top pick

ECOVACS DEEBOT T30S Combo

Stairs and upholstery the robot cannot reach

Ships with a cordless stick vacuum docked alongside the robot, which is the only honest answer to stairs anyone sells.

Published specifications

Stated suction
11,000 PaSource: ECOVACS DEEBOT T30S Combo, "11000Pa" — manufacturer listing on Amazon.com (retrieved 2026-09-01)
Max climb height
Not publishedNot stated on the listing.
Mop lift
Not publishedThe listing states auto mop lifting but gives no height.
Main brush
ZeroTangle anti-tangle brushSource: ECOVACS DEEBOT T30S Combo brush — manufacturer listing on Amazon.com (retrieved 2026-09-01)
Navigation
Not named on the listingSource: ECOVACS DEEBOT T30S Combo features — manufacturer listing on Amazon.com (retrieved 2026-09-01)
Dock
All-in-one hub with dual self-emptying for the robot and the stick vacuum, plus hot-water mop washingSource: ECOVACS DEEBOT T30S Combo station — manufacturer listing on Amazon.com (retrieved 2026-09-01)

What it does well

  • The stick vacuum shares the same self-emptying station
  • ZeroTangle anti-tangle brush and TruEdge adaptive edge mopping
  • Hot-water mop washing with auto mop lifting

What it does not

  • No published climb height or mop-lift figure
  • The combined station is physically large

Who it is for

Multi-story homes and anyone who keeps buying a robot and then still hauling a handheld up the stairs.

Skip it if

You already own a good stick vacuum. You are paying for a second one you do not need.

$913.29 · See it on Amazon$1,199.99 −24%

#ad how we are funded · price as of October 17, 2026

Full ECOVACS DEEBOT T30S Combo write-up

iRobot Roomba Combo j9+
Pick 2

iRobot Roomba Combo j9+

Mopping without avoiding the carpet

The mop arm retracts to the top of the robot rather than lifting a few millimeters, so it can mop and vacuum in one pass without routing around rugs.

Published specifications

Stated suction
Stated only as 100 percent stronger than the Roomba Combo i seriesiRobot publishes no absolute suction figure for this model, so it cannot be compared with a Pa rating from any other brand. That is a limitation of the data, not a criticism of the machine.Source: iRobot Roomba Combo j9+ product page — power-lifting suction claim (retrieved 2026-09-01)
Max climb height
Not publishediRobot states no threshold or obstacle climbing height for this model on its own product page.
Mop lift
Auto-retract — the mop lifts to the top of the robotiRobot describes it as an Auto-Retract Mopping System with back-and-forth pressure mopping. No millimeter figure is given because the pad leaves the floor plane entirely.Source: iRobot Roomba Combo j9+ product page — mopping system (retrieved 2026-09-01)
Main brush
Dual multi-surface rubber brushes with an edge-sweeping brushSource: iRobot Roomba Combo j9+ product page — brushes (retrieved 2026-09-01)
Navigation
PrecisionVision Navigation on iRobot OSSource: iRobot Roomba Combo j9+ product page — navigation (retrieved 2026-09-01)
Stated runtime
Not publishedNot stated on the iRobot product page.
Dustbin
Not publishedNot stated on the iRobot product page.
Body height
86mm (3.4in)Listed dimensions 3.4 x 13.3 x 13.3in, 7.5lb.Source: iRobot Roomba Combo j9+ product page — dimensions (retrieved 2026-09-01)
Dock
Multi-functional base that empties the bin and refills the mop tank, stated at up to 60 daysSource: iRobot Roomba Combo j9+ product page — base (retrieved 2026-09-01)

What it does well

  • The mop retracts fully onto the body — the most complete answer to wet carpet anyone sells
  • Dual rubber brushes, which do not wind hair the way bristle brushes do
  • Sixty-day stated self-empty interval

What it does not

  • iRobot publishes almost none of the numbers this site compares on — including any climb height
  • Suction is quoted only as a relative claim ("100% stronger" than an older model), which cannot be compared across brands

Who it is for

Mixed carpet and hard floor where you would rather the robot just handled both in one run.

Skip it if

You want to compare it on specification. iRobot publishes no suction figure, no climb height, no runtime and no bin capacity for this model.

$1,003.79 · See it on Amazon

#ad how we are funded · price as of October 17, 2026

Full iRobot Roomba Combo j9+ write-up

Roborock Q7 M5+
Pick 3

Roborock Q7 M5+

The cheapest self-emptying dock with real mapping

The Q7 M5's LiDAR and anti-tangle hardware, plus the self-emptying dock the plain M5 does not come with — and a stated bag capacity to go with it.

Published specifications

Stated suction
10,000 PaSource: Roborock Q7 M5+ product page — HyperForce suction (retrieved 2026-09-17)
Max climb height
20mm (2cm)Roborock's wording is "2cm climbing ability", with no condition attached.Source: Roborock Q7 M5+ product page — climbing ability (retrieved 2026-09-17)
Mop lift
Not publishedNot stated on Roborock's product page.
Main brush
JawScrapers Comb anti-tangle main brush with an anti-tangle side brushSource: Roborock Q7 M5+ product page — brushes (retrieved 2026-09-17)
Navigation
360-degree PreciSense LiDARSource: Roborock Q7 M5+ product page — navigation (retrieved 2026-09-17)
Stated runtime
Not publishedNot stated on Roborock's product page.
Body height
99mm (3.9in)Source: Roborock Q7 M5+ product page — dimensions (retrieved 2026-09-17)
Dock
Auto-empty dock with a 2.7L dust bag, stated at up to 7 weeksRoborock qualifies the interval: "Based on Roborock internal testing. Actual results may vary depending on usage conditions." The Amazon listing title says 7 to 9 weeks.Source: Roborock Q7 M5+ product page — auto-empty dock (retrieved 2026-09-17)

What it does well

  • Self-emptying dock with a stated 2.7L dust bag
  • JawScrapers Comb anti-tangle main brush and an anti-tangle side brush — both ends of the tangle problem
  • 360-degree LiDAR navigation at entry-level money

What it does not

  • Two different intervals for one dock: Roborock says up to 7 weeks based on internal testing, the Amazon listing says 7 to 9 weeks
  • A 20mm climb figure, which is the low end of what makers publish
  • No published mop-lift height or runtime

Who it is for

A shedding household on a budget that wants to stop emptying a bin by hand.

Skip it if

You want the mop washed for you. Roborock describes this dock as auto-empty, not mop-washing, so the pad is still yours to rinse.

$299.99 · See it on Amazon$359.99 −17%

#ad how we are funded · price as of October 17, 2026

Full Roborock Q7 M5+ write-up

Questions people actually ask

+ Robot vacuum mop combo or separate?

Combo for a mostly hard-floor home. Separate machines when carpet dominates, when your pile is deeper than any published mop lift, or when you want a hard-floor washer that genuinely scrubs.

+ Do robot mops actually clean, or just spread dirt?

A pad that is never rinsed spreads dirt by the far end of a large floor. That is exactly what the washing docks and the roller mops address, and it is the main thing separating a current combo from one bought five years ago.

+ Can a robot vacuum mop and vacuum at the same time?

Most do, with the mop trailing the brush. The exception is carpet, where the robot either lifts the pad, drops it at the dock first, or avoids the area.

+ Is a robot vacuum with a handheld worth it?

If stairs are your problem, yes — no robot climbs them, so a shared station with a stick vacuum is the only integrated answer. If you already own a good stick vacuum you are paying for a second one.

Sources