Samsung Galaxy S4 review

Let's not pretend that Samsung is a pioneer in this area though: like a great many features of the Galaxy S4, the phone borrows a lot from the other top smartphones of the moment. Both the Sony Xperia Z and the HTC Onehave screens that rock the same resolution, but neither of them have the jaw-dropping clout of the Super AMOLED HD screen on offer here.

On top of that, there's a much faster processor packed under the hood, ample storage space for media thanks to an expandable memory card slot, and the likes of 4G, Bluetooth 4.0, NFC and pretty much any other connection you care to mention on board.

25 essential BlackBerry tips and tricks

Tweaks, speedups, shortcuts and extra features for your BlackBerry - and they're all free

You probably bought a BlackBerry for the keyboard and fantastic battery life but there's more to it than that.

You can just pick a BlackBerry up and start using it, because all you need to do is press the Menu key to get the main options on every screen - but the BlackBerry OS hides a huge number of clever tricks and shortcuts that make it faster and simpler to get things done.

There are some tips you won't need often - like pressing Alt, Del and the right-hand Caps key at the same time to reboot instead of just restarting; others you'll use all the time, like pressing the red 'hang up' key to get back to the home screen and clicking the spanner icon on the home screen to open Options. Here are our top 25 Blackberry tips.