Start with your floors and your home
Which? says cordless sticks suit smaller homes with less carpet, quick cleans and people who struggle with heavier machines, and that corded models are better for whole-house cleaning and carpet-heavy homes. It also says corded vacuums have a better reliability record. Your own layout matters more than any average: how many stairs, how far the socket is from the furthest room, and whether you want to store the machine on a wall or in a cupboard.
Some households keep both, a corded machine for the weekly clean and a cordless for crumbs and the car, but that means buying and storing two. Our comparison of cordless and corded vacuums sets out the trade-offs without ranking them.
Why a runtime needs its conditions
A cordless runtime is a maximum. It is measured with a particular power mode and often a particular tool, and a motorised floor head or a boost setting draws more from the battery. The cards quote the maker’s conditions where they are printed and say so where they are not.
Compare the minutes at the power level you will actually use, and be wary of a headline figure whose conditions you cannot find. Our cordless buying guide works through five examples.
Bags or a bin
Bagged machines usually hold more and keep dust contained when you remove the bag. Bagless machines avoid buying bags but need emptying more often, and Which? found they released much more dust into the room when emptied. Neither type is immune to losing suction as it fills.
The right choice depends on how you feel about the two chores. Do you mind buying bags, or would you rather tip a bin into an outdoor bin? Our corded buying guide covers this in more depth.
What filter wording does and does not tell you
Filter names are not interchangeable. A washable filter is not necessarily HEPA, and makers use their own terms, such as UltraAllergy, S-Class or washable EPA. Listing titles on Amazon.co.uk sometimes use the word HEPA where the maker’s own page does not, so the cards follow the maker.
Allergy UK recommends a high-filtration vacuum with a HEPA, S-class or similar filter, and says cleaning lowers but does not totally remove house dust mite allergens. We do not claim that any vacuum removes allergens, bacteria or viruses.
A wattage is a rating, not a measure of suction
A wattage is the electrical power a motor is rated for. It is not a measure of how much dirt reaches the bin, which depends on the floor head, the airflow path and the state of the filter and bag. The cards quote a rating only where the maker prints one, and none of them compares ratings or turns one into a performance claim.
The same goes for suction figures such as ‘150aW’. A figure with no footnote or test condition is the maker’s own claim, and Shopicks has not measured any of them.
Storage, charging and battery disposal
Check where the vacuum will live. A cordless stick needs a plug point where it charges, and many come with a wall mount. A cylinder needs a cupboard, and an upright needs floor space. The cards quote the maker’s weight where it is printed and say where makers disagree.
Electrical Safety First says to use only the original charger or one approved by the manufacturer for rechargeable floor cleaners, and to unplug when not in use or being charged. Rechargeable batteries and cordless appliances with them should go to a local recycling centre, not into the household bin.