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Should you snap up a cheap Aldi air purifier?

Air pollution has been linked to serious health problems, including heart disease, stroke and lung cancer.  An air purifier can reduce your exposure to pollution, but they're expensive. Should you buy the £60 Aldi Easy Home air purifier?

Why has my dehumidifier stopped working?

If this hot, humid weather has left you in need of a dehumidifier, the last thing you want is for it to break down. We've surveyed owners of dehumidifiers from DeLonghi, Ebac, Ecoair and Meaco and asked them which faults their dehumidifiers developed. Discover the most common faults and how to fix and avoid them.

Fitbits on test: Versa vs Versa Lite vs Inspire HR

Which? compares the Fitbit Versa (£158), Fitbit Versa Lite (£135) and Fitbit Inspire HR (£90). Discover how their specs match up and whether you'll miss out by buying one of the cheaper models compared to the standard Versa

What to expect from the Apple Watch 5

There are plenty of rumours circulating about the launch of an Apple Watch Series 5 in September. Nothing has been confirmed - but here's what we've heard so far, and the features and specs we'd welcome from the next generation Apple Watch - including longer battery life, more detailed sports tracking and an always-on display.

Best smartwatches and fitness trackers for outdoor sports this summer

The weather's getting sunnier and warmer, and if that means you'll be taking your workout to the park, you need a wearable that copes well with outdoor conditions. Discover the features to look out for and the models worth considering.

Bellabeat and Oura ‘smart jewellery’ reviewed

Considering buying a piece of smart jewellery? Which? gets hands on with the Oura ring and Bellabeat Leaf trackers to see what features they offer and whether they're worth your money.

Advanced fitness trackers and watches for running, swimming and exploring

We've rounded up the latest wearables that are packed with sensors and technology for running, swimming and exploring the great outdoors, including high-end, expensive specialist models and cheaper models for those on a tighter budget

Meet Flow: the new personal air quality tracker

Poor air quality is the greatest environmental risk to public health in the UK. Could Flow - a personal air quality tracker from Plume labs - help you find cleaner air and avoid pollution?

Best hybrid and fashion smartwatches: new WearOS models on test

Looking for a fashionable smartwatch that combines smart technology with a traditional watch aesthetic? We've reviewed models by Huawei, Misfit, Fossil and Withings. Find out what you'll get from Wear OS smartwatches compared to others.

Cheap fitness trackers from £20 on test: Huawei vs Xiaomi

Starting an exercise regime at a time of year when you’re also trying to save money can feel impossible. We’ve rounded up some cheap activity trackers that could come to your rescue.

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