Technology
Are smart burglar alarms safe to use?
We've tested smart burglar alarm systems from Yale, Hive and Ring, but should you trust a smart alarm to protect your home from burglars?
Spyware threat: Apple users urged to apply emergency software update
Find out why iPhone, Apple Watch, iPad and Mac users should install an emergency software update released by Apple to patch a newly-discovered spyware threat.
5 reasons why you should switch from a ‘big four’ network for your next contract
It's easy to be reassured by a big brand, but virtual networks have to work harder for your money, and do so by offering extremely competitive alternatives. Read on our five reasons why you should switch from a 'big four' network for your next contract.
4 reasons why mobile phone Sim-only deals are better than contracts
While contracts help spread the cost, there are distinct advantages to going ‘Sim-free’ that show why this is an increasingly popular choice.
Switch broadband provider and save up to £143 per year
We found that the average customer could save around £90 each year by switching, but the potential savings are even greater for customers of three out of four of the UK's biggest broadband providers.
Which? reveals the most popular laptops of 2021 so far
Which laptops are the most popular this year? We reveal the top five most-visited laptops on which.co.uk
The four key reasons people leave their TV and broadband provider
We asked the customers who had switched providers what it was that ultimately motivated them to move away - perhaps unsurprisingly, price rises came out on top.
Virgin Media and Three named worst for complaints by Ofcom
Complaints about pay-monthly mobile have remained constant, but complaints about broadband services rose at the start of 2021 - reaching a three-year high.
Windows 11: what you need to know
It's the biggest update to Windows since 2015, but is it worth getting excited over? We give you the key facts.
The latest Which? tech reviews
Find out more about the latest tech products we've tested, including cheap Best Buy TVs, desktop PCs, wireless routers and printers