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Kärcher S 3 Twin 2-in-1 review

Two side brushes and a 16-litre hopper: the sweeper you push once rather than the broom you swing all afternoon.

The bottom line The light, well-thought-out domestic choice — buy it for the second brush, not the area figure.

The S 3 Twin sweeps a 650 mm path with two side brushes, holds 16 litres, weighs 9.7 kg and is quoted at 1 800 m²/h.

What a sweeper replaces

Twenty minutes with this instead of an afternoon with a broom, and without the dust cloud a broom raises. It is the least glamorous machine on this site and the one most likely to be used weekly, because it needs no power, no fuel and no setup.

Why the second brush matters

Side brushes throw debris from the edges into the path of the roller. With one brush, one side of every pass is missed and finished by hand. With two, the machine cleans up to both edges — which on a terrace with walls, or a drive with kerbs, is most of the job.

Brush height, and the surface

Set too low the brushes wear out in a season and the machine pushes rather than sweeps; too high and it skims over grit. Adjust for the surface — and accept that loose gravel is not a sweeper’s job at any setting.

Availability

One reference across all six Amazon stores, including the United States.

What we like, and what we don't

Strengths

  • Two side brushes feed both edges into the roller — one-brush machines leave a line
  • 9.7 kg: light enough to lift into a boot or hang on a wall
  • One reference on all six Amazon stores

Compromises

  • 1 800 m²/h is the lowest area figure in this group
  • 16 litres is a modest hopper for autumn leaves
  • Dry surfaces only, like every mechanical sweeper here

Specifications

Working width650 mm with side brushes
Area performanceup to 1 800 m²/h
Hopper16 l
Weight9.7 kg
BrushesTwo side brushes plus a wide roller
Amazon referenceB0GGGY547G
EAN4066529231772

Questions people actually ask

Two side brushes or one?

Two, if the surface has edges — which every drive and terrace does. A single brush sweeps one side into the roller and leaves the other, so you either make two passes or finish with a broom. It is the most practical difference between sweepers in this price band.

Will it work on gravel?

Partly. Sweepers work best on flat, hard surfaces; on gravel the brushes throw stones and the roller picks up what you wanted to keep. Raising the brush height helps. If the drive is loose gravel rather than compacted, a blower is the better tool.

What sets this model apart

Compared with the median of its own aisle on this site — not with the market at large.

  • Area performanceup to 1 800 m²/h-31 % vs the aisle median
  • Hopper16 l-15 % vs the aisle median

Our score

8.7/ 10

The light, well-thought-out domestic choice — buy it for the second brush, not the area figure.

Who this one is for, among cleaning machines

Terraces, paths and short drives cleaned regularly, where storage space is limited

Set beside the neighbouring 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 Working widthAmazon reference
Kärcher S 3 Twin 2-in-1 150 £ 650 mm with side brushesB0GGGY547G
Güde GKM 700 120 £ 700 mm with side brushB003BUBLMM
Scheppach S800 115 £ 650 mmB0CCRZ755Z
Cleancraft HKM 700 205 £ 700 mmB07BKYV5CG

Where the models are not equal, in cleaning machines

  • If price decides: Scheppach S800, at 115 £.
  • Highest Working width in the table: Cleancraft HKM 700 (700 mm).
  • Highest Amazon reference in the table: Cleancraft HKM 700 (B07BKYV5CG).

When to look elsewhere among cleaning machines

  • On a tighter budget: HEMMDAL HKM65, at 77 £ in the same category. see the review
  • If you need more Working width: Starmix Durosweep 77 Pro states 770 mm. see the review

Where this one sits on price, among cleaning machines

At 150 £, it sits +25 % against the 120 £ median of the 7 models in this category published here.

This model in our cleaning machines guides

  • Choosing a Push Sweeper — 2026 Guide | CleanVerdict

Price and availability, for cleaning machines

A reference exists on these Amazon stores: France, Germany, Italy, Spain, United Kingdom, United States. Listed is not the same as in stock — availability changes daily.

Details checked on August 15, 2026.

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

Prices quoted in these summaries are dated readings. The live price is shown next to each product.