It's that time of year again and Apple's in the usual record-breaking mood at the box-office. This is an S year in the Cupertino calendar but different enough - it may be that two phones instead of one account for almost double last year's record sales.

Another year, another iPhone. Apple's mid-cycle "S" update has brought us the iPhone 5s. It retains an identical, physical design to the iPhone 5 but introduces a useful biometric fingerprint sensor, has a faster, 64-bit A7 processor and takes better photos than its predecessor, particularly in low...

Touch ID is genuinely useful; Improved low light camera performance; Excellent performance

Average battery life; Same sized 4in screen; Touch ID needs more support

Apple's pattern of iteration isn't smooth when it comes to the iPhone . It bumps along: a new case design one year, more subtle advancements the next. The iPhone 5s is, as the name implies, a phone that doesn't look much different from last year's iPhone 5.

Touch ID fingerprint sensor; camera flash adjusts to ambient light temperature; big speed improvement over iPhone 5

Screen still feels small next to other high-end phones

Another year, another iPhone. Apple's mid-cycle "S" update has brought us the iPhone 5s. It retains an identical, physical design to the iPhone 5 but...

Touch ID is genuinely useful; Improved low light camera performance; Excellent performance

Average battery life; Same sized 4in screen; Touch ID needs more support

I pull my iPhone out of my pocket, tap the home button, and let my thumb linger an extra second longer than I normally would have. The lock screen fades away and the iOS 7 home screen zooms into view, each icon landing neatly on the display.

Blazing fast A7 processor; Call quality is excellent, especially using FaceTime Audio; Touch ID feels like the future, and works flawlessly; Vastly improved camera, particularly the slo-mo feature, is enough to warrant an upgrade

Apple and iOS developers have yet to dream up truly innovative features; Still waiting for Siri to reach her full potential

On the 10th of September Apple execs took to the stage, at the company's headquarters in Cupertino, and showed off three new things. The first was iOS 7 – a revamp of the company's mobile operating system for the iPad, iPod touch, and iPhone.

The new iPhone is here, and while it doesn't come with a brand new number, it does manage to sneak in a few new features that aim to make it the best iPhone yet.

Still the same lovely design as before; Performs very well; Fingerprint scanner is great for unlocking the phone and buying apps; 4G connection is very fast; Feels great in the hand

No NFC; No 802.11ac; True Tone flash is versatile; but doesn't dampen flash colour as much you expect

I confess that I use Android smartphones more than the iPhone, but every year when a new iPhone comes out, I get giddy with excitement. There is a simple magic to iOS devices, with a bevy of complex engineering, brilliant software design and killer marketing behind that simplicity.

Still stunning looking; great quality; sharp and colorful display; excellent camera; a fingerprint scanner that's actually easy to use

A 4" display on a flagship smartphone in 2013 seems so old fashioned

The Good - The most advanced smartphone on the market - Cutting-edge processor and graphics performance - iOS 7 is revitalizes the iPhone experience - Slow-motion video capture and photos outstanding - Touch ID a game changer The Bad - No option for larger display - Relatively expensive off-contract...

The most advanced smartphone on the market - Cutting-edge processor and graphics performance - iOS 7 is revitalizes the iPhone experience - Slow-motion video capture and photos outstanding - Touch ID a game changer

- No option for larger display - Relatively expensive off-contract - No Wi-Fi 802.11ac support - No 128GB option - No 'Swype-like' keyboard

The new iPhone 5S comes with a Touch ID fingerprint scanner that can be used to unlock or authorise apps. But is it any good? ...