Andrew Laughlin

We know from our research that how long a cordless vacuum cleaner's battery lasts is important to you. However, too many vacs have battery life that just, well, sucks. High-quality cordless vacs can last more than 20 minutes on maximum power, but weaker models will done in less than 10 minutes. That's barely enough time to clean a couple of rooms, let alone the whole house. We've now got tough on battery life so that no cordless vacuum can get a Best Buy if it won't last the distance.

‘Hey ChatGPT, how should I invest my £25k annual Isa allowance?’, we ask one of the world’s most advanced AI search tools. ChatGPT answers confidently, but fails to spot that the Isa allowance is actually £20k, instead giving advice that was potentially in breach of HMRC rules. More than half of us now use AI to search the web for information, according to a Which? survey of 4,189 UK adults conducted in September 2025.

By clicking a retailer link you consent to third-party cookies that track your onward journey. This enables W? to receive an affiliate commission if you make a purchase, which supports our mission to be the UK's consumer champion. From its bright green vacuums to its distinctive TV adverts, British brand Gtech has become a familiar name in home appliances. We've tested numerous Gtech vacuum cleaners and surveyed hundreds of owners about their experiences with them.