Robots
Suction figures have inflated past the point of meaning. These are the specifications that decide whether the robot is still running next year.
Four things separate robots in practice, and none of them is the headline suction figure.
In a household with long hair or a shedding dog, hair wrapped around the roller is the weekly job that ends most robots’ careers. Designs that route hair off the ends of the brush — Ecovacs calls it ZeroTangle — genuinely reduce it.
Without it, a mopping robot damps every rug it crosses. With it, the pads are raised or ejected before the machine reaches carpet. Confirm it on any robot that mops.
A round machine cannot clean into a right angle. Extending the side brush helps; extending the mop pad matters more, because the film along a kitchen kickboard is what you actually see.
Omni-type stations empty, wash and dry. They also occupy a permanent meter of floor next to a socket, and they consume bags. Price the consumables before choosing the brand.
The real strength. Keeping dust and hair from accumulating so the weekly clean is smaller.
Where mopping works reasonably on light, fresh dirt and where expectations should stay modest.
Where daily hair collection is transformative and where self-emptying earns its cost.
Where a robot is not the answer, and where a proper vacuum still does the job.
| Your home | The feature | Why |
|---|---|---|
| Hard floors and rugs | Mop lifting | A wet pad on carpet |
| Pets | Self-emptying dock | Daily hair volume |
| Cluttered floors | Obstacle avoidance | Cables and socks |
| Multiple rooms | Mapping | Predictable coverage |
Robots need more hands-on care than people expect: brushes tangle with hair, sensors get dusty and mop pads sour if left damp. A robot that has started missing areas usually has dirty sensors rather than a fault.
Mostly about the home rather than the user.
25,000 Pa · TruEdge 2.0 extending brush and mop · AIVI 3D 2.0
An extending side brush and mop pad: the answer to the corner every robot leaves untouched.
Best for: Homes with hard floors and rugs where the robot must handle corners and low obstacles alone
25,000 Pa · extending side brush and mop · hard floors, rugs and carpet
Extending brush and mop on a well-established platform — the sensible flagship alternative.
Best for: Mixed hard floors and rugs, in a home where the robot runs daily
25,000 Pa · ZeroTangle 3.0 anti-tangle · Omni dock
An anti-tangle brush system, which is the specification households with long hair should read first.
Best for: Households with pets or long hair, on open hard floors
4,000 Pa · 140 min runtime · sweeps, vacuums and mops · self-recharging
A quarter of the suction of the flagships and a fifth of the price — with the compromises that implies.
Best for: A flat with hard floors, as a daily maintenance machine rather than a cleaner
On rugs and pet hair, yes, clearly. On a hard floor with daily dust, far less than the ratio suggests — the brush design and the airflow path matter as much as the number. Treat suction figures as a class indicator rather than as a linear measure.
Side brushes, roller brushes, filters, mop pads and dock dust bags, all model-specific. Over three years they come to a meaningful fraction of the machine. Check the parts are still sold for your exact model, not just for the brand — a discontinued platform is an expensive ornament.
No. It maintains a baseline between deep cleans and handles daily dust and hair. Stairs, upholstery and thorough cleaning still need a proper vacuum.
Reasonably on light, fresh dirt. Dried-on spills need real pressure, which a robot cannot apply. Treat it as maintenance mopping.
If you have rugs, effectively yes. Without it a wet pad gets dragged across carpet, which is worse than not mopping at all.
In pet households particularly. It turns emptying from a frequent chore into an occasional one, which is what keeps the robot in use.
Often dirty sensors or a mapping problem, sometimes an obstacle it treats as a wall. Wiping the sensors solves a surprising share of it.
Meant for: Homes with hard floors and rugs where the robot must handle corners and low obstacles alone
Where it is strongest: The mop pad itself extends into corners, not just the brush
Where it is weakest: Omni docks are large, and they need a permanent floor position with power
Meant for: Mixed hard floors and rugs, in a home where the robot runs daily
Where it is strongest: Both the brush and the mop extend for corners and low furniture
Where it is weakest: Priced at the top of this group
Meant for: Households with pets or long hair, on open hard floors
Where it is strongest: Anti-tangle brush design — the difference between weekly maintenance and none
Where it is weakest: No extending mop, so corners are less well covered than on the T50
Meant for: A flat with hard floors, as a daily maintenance machine rather than a cleaner
Where it is strongest: 140 minutes of runtime — longer than several machines costing five times more
Where it is weakest: 4,000 Pa is a fraction of the flagships' figures, and it shows on rugs
$230 – $345
4 models
$380 – $600
5 models
$700 – $1 400
4 models
Lances, nozzles and detergents from the same aisle, at the price we read. Confirm the fit against the machine you choose before ordering: it turns on the coupling and the part number, which the listing gives.
The washers above come from the catalog of this site. Specifications are those the manufacturer and the Amazon page publish; prices are what Keepa reported for the date below, and both move. The order follows declared specifications, stated strengths weighed against stated limits, and price. No machine here has been put to work by us, and nothing on this page pretends otherwise.
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Prices quoted in these summaries are dated readings. The live price is shown next to each product.
Pressure washers and floor washers swing by a hundred dollars or more across the year, and the biggest "discounts" often land at prices the same model sold for six weeks earlier. UniverTrack tracks the real price history across retailers, spots fake reductions, and alerts you when it is genuinely the moment to buy.
