Battery and storage
The iPhone 5S features an unspecified battery that Apple claims will allow 10 hours of 3G talk time and eight hours of 3G internet usage. The Galaxy S4 features a 2,600mAh battery, which Samsung lists as lasting for a much more robust 17 hours of 3G usage.
Battery burning the iPhone 5S and Galaxy S4 by constantly looping a video file stored on the phone with the screen brightness set to auto, we found the iPhone 5S boasts a better battery life. The iPhone 5S lasted around seven hours while the S4 managed six.
The same rang true with real-world usage. Using both phones normally – occasionally checking maps, listening to music on the way to and from work, sporadically checking our email and social media accounts and making the odd phone call – the iPhone remained the better of the two. For example during a regular day at work, by lunchtime the Galaxy S4 battery had fallen by 20 percent while the iPhone 5S had only gone down by a meagre 12 percent.
The Apple iPhone 5S is available in 16GB, 32GB and 64GB versions, but, in the UK, the Galaxy S4 is only available with 16GB storage. Luckily for those wanting more storage the S4 does feature a micro SD card slot. The iPhone 5S is the more expensive of the two with the 16GB version costing £549, the 32GB £629 and the 64GB a staggering £709. By comparison the 16GB Galaxy S4 can currently be purchased SIM-free for £500, or just under £400 on Amazon.
Winner: The Apple iPhone 5S
Overall winner: The Apple iPhone 5S
Having won four of our six categories the iPhone 5S has won the 2013 Apple vs Samsung match. While the iPhone 5S doesn't have as good a screen as the Samsung Galaxy S4 it does feature a significantly better camera, longer battery life, more robust security features and, for those who can afford it, increased storage options.