In this section of S21 you will find hundreds of independent expert reviews plus over 50,000 user reviews of mobile phones, as well as links to the best online buys (pay as you go, contract & sim free). Don't waste your time searching - we've already found you the best deals in the UK! But more importantly, we find you the best phones! Looks familiar? We used to be Mobile Phones UK - reviewing phones since 2001.
Best buy: iD Mobile from iD Mobile (£0.00)
The Samsung Galaxy S8 takes Samsung's infinity screen concept into new territory, with an enormous 5.8 inch quad-HD dual-curved display packed into a compact handset. Brimming with market-leading features, the Galaxy S8 is the best-looking and arguably the best-equipped phone on the market in 2017, but it has a price to match.
The Huawei P9 Lite is one of our top-rated phones for 2016. Priced at just under £300, it's a mid- to higher-end phone with an impressively skinny metal design, a big 5.2 inch Full HD display, and an 8-core processor. A big battery life and 16GB of memory complete the package.
The Samsung Galaxy J3 (2016) is a top buy. Costing a little over £100, this is a smartly-styled superslim phone with a high-definition 5 inch AMOLED screen that outperforms any rival at this price. Benefiting from a quadcore processor, 4G Super-Voice compatibility, and a big battery, the J3 is an all-round performer. Budget smartphones don't offer more!
The Samsung Galaxy J5 (2016 Edition) is a mid-range smartphone with premium design and a good spread of features. We draw your attention to its superb AMOLED HD screen, exceptional battery life, Android Marshmallow, 16GB of memory and 2GB of RAM. The Snapdragon 410 processor isn't the fastest in town, but it gets the job done.
The Sony Xperia XZ Premium is a premium-spec version of the XZ, with a 4K HDR screen, a next-gen processor, enhanced camera, more memory and a bigger battery. It's a beauty for sure, and not over-priced, but may be too big for some users.
We rated last year's Huawei P9 Lite as one of the best phones you could buy for under £300. Guess what? The new P10 Lite is even better.
The Sony Xperia XA1 is a mid-range phone with premium styling. It's superslim and very narrow, with almost no bezels left or right of the screen. Equipped with 32GB of storage and a fast 8-core processor, it's not lacking in any department. But perhaps its top feature is its class-leading 23 megapixel camera.
The Samsung Galaxy S7 launched in the UK on 11th March. Building on the Galaxy S6, the S7 features an all-metal water-resistant design with a 5.1 inch Quad HD display. It uses Samsung's new super-fast 8-core Exynos 8 processor, and includes a microSD card slot, allowing the memory to be expanded to 200GB. A new dual pixel camera enables even better low-light photography, and the new selfie flash lets you capture perfect shots of yourself and your friends. An enhanced 3,000mAh battery keeps the phone going for longer. The S7 is already priced very competitively for a flagship phone, and we don't hesitate to recommend it.
The Motorola G5 Plus is one of the best mid-range phones of 2017. Good looks are combined with a superfast octa-core processor, 32GB of memory, a good camera and decent battery life. Top value for money!
The Samsung Galaxy A3 (2017 edition) is a compact and slim smartphone with a stunning unibody design. With a decent processor, excellent screen and good camera, only the battery life is below average. The price has now fallen considerably, making it excellent value for money.
Mobile phones reviews & articles (archived)Android Jelly Bean - Android Jelly Bean (4.1/4.2/4.3) is an update of Ice Cream Sandwich (4.0) and includes a few new features.
Android KitKat - The new release of Google's Android 4.4 operating system is called KitKat. Highlights of KitKat include voice commands prompted by the words "OK Google" and Emoji, the colourful Japanese smileys.
Apple iOS 6.0 - Guide to the iOS 6.0 operating system from Apple. What's new and different.
Apple iOS 6.1 - Guide to the iOS 6.1 operating system from Apple.
Apple iOS 7.0 - Guide to the iOS 7.0 operating system from Apple.
Apple iPhone 5 vs HTC One vs Samsung Galaxy S4 vs Sony Xperia Z - Which is the best smartphone of 2013?
Apple iPhone 6 vs HTC One M8 vs Samsung Galaxy S5 vs Sony Xperia Z3 - Which is the best smartphone of 2014?
Best smartphone under £200 - £200 is a sensible amount to spend on a phone if you can't afford the latest and greatest. Even at £200, or around £15 per month on Pay Monthly, there will be compromises and hard choices to make. Make life easier on yourself and start with our pick of the best.
EE phones - Find the best prices for EE phones in the UK. Reviews, guides and best buys.
Mobile phone of the year 2012 - The Samsung Galaxy S3 is officially the best mobile phone of 2012! Shortlist of 10 best mobile phones of the year.
Mobile phone of the year 2013 - The HTC One is officially the best mobile phone of 2013! Click here to see the full results.
Mobile phone of the year 2014 - The S21 Mobile phone of the year 2014 poll is now finished. Click here to see the winner!
NEC phones - Find the best prices for NEC phones in the UK. Reviews, guides and best buys.
New responsive site design for mobile and tablets - We're pleased to announce the launch of of our new responsive site design for mobile and tablets!
O2 phones - Find the best prices for O2 phones in the UK. Reviews, guides and best buys.
Orange phones - Find the best prices for Orange phones in the UK. Reviews, guides and best buys.
Palm phones - Palm phones reviewed.
Panasonic phones - Find the best prices for Panasonic phones in the UK. Reviews, guides and best buys.
Rugby World Cup Predictor App - The Rugby World Cup 2015 has just got under way and the Rugby World Cup Predictor App from the children's rugby charity, Wooden Spoon, is just one of many ways that Rugby fans can get involved.
S21 Phone of the Year Award 2015 - It's the moment you've all been waiting for. In the run-up to Black Friday, we've selected the best 3 smartphones of 2015. Let the drum roll begin ...
Sagem phones - Find the best prices for Sagem phones in the UK. Reviews, guides and best buys.
Samsung Galaxy S4 rumours - Remember the Samsung Galaxy S3? That was so 2012! Here we're looking forward to the release of the next Galaxy phone. Rumour, uninformed speculation and gossip. Bring it on!
Samsung Galaxy S6 vs Edge vs HTC One M9 vs iPhone 6 - Which is the best smartphone of 2015?
Sharp phones - Find the best prices for Sharp phones in the UK. Reviews, guides and best buys.
Siemens phones - Find the best prices for Siemens mobile phones in the UK. Reviews, guides and best buys.
Sony Ericsson phones - Sony Ericsson was a joint venture company between Sony and Ericsson. Ericsson brought with them years of experience in mobile phones, and Sony provided world-leading expertise in core technologies such as LCD displays, digital photography and audio, as well as a solid reputation for innovative design and high quality. The company is now wholly owned by Sony.
T-Mobile phones - Find the best prices for T-Mobile phones in the UK. Reviews, guides and best buys.
The highs and lows of MWC 2014 - The good, the bad and the ugly from Mobile World Congress 2014.
The smartphone of 2014 - Traditionally only the brave or the foolish try to predict the future, but fortunately Brave and Foolish are S21's middle names. In any case, the future has already revealed itself to the astute observer.
UK Black Friday deals 2015 - Black Friday (27th November 2015) is predicted to be the biggest shopping day of the year in the UK. But remember that retailers won't just be slashing prices on Black Friday itself, but right through the Black Friday / Cyber Monday weekend, from 27th - 30th November. There are also sales taking place in the lead-up to the big weekend, so it's not too early to start searching for bargains and snatching those deals!
World Cup 2014: Android and iOS football app reviews - I have been lucky enough to pre-test the best World Cup football apps and speak to the developers behind them. After testing a whole series of football apps I found the best football prediction game and the best app for following the World Cup.
Young Mobile Phone Designer of the Year Award 2014 - The Young Mobile Phone Designer of the Year Award is open to all university students enrolled on a design-related course within the UK.
ZTE phones - ZTE is the fifth largest smartphone manufacturer in the world, manufacturing phones for companies like Orange, T-Mobile and Vodafone. ZTE is now also releasing phones under its own brand.
iPhone 5 rumours - Rumours, speculation and gossip about the new iPhone.
iPhone 5s vs HTC One vs LG G2 vs Lumia 925 vs Galaxy S4 vs Xperia Z1 - We pitch the top smartphones of 2013 against each other to find out which is best.
In addition to thousands of mobile phone reviews, we provide price comparison for carefully selected retailers. Instead of an automated price comparison, we carefully select the best deals from trusted retailers. As well as pay as you go and contract mobile phones, you can also find reviews of mobile broadband services from 3 Mobile, EE, O2, and Vodafone. Compare the best mobile phone deals and offers. Also check out our comparison of sim only tariffs. And why not subscribe to our RSS feed for phone reviews & news?