iPhone 5S and 5C - 10 things you should know

For a start, both handsets will work on 4G, and the fingertip scanner can recognise up to five prints

1. The iPhone 5S has a sapphire-covered home button. The laboratory grown, colourless gem is already used by Apple as a lens for the iPhone5 camera. Harder than glass – supposedly only diamond is tougher – its scratch-resistant surface ensures marks don't interfere with the fingerprint scanner beneath.

2. The C in iPhone 5C stands for colour, not cheap. What was rumoured to be Apple's budget phone will in fact cost £469 out of contract, just £80 less than the top-of-the-range 5S. It will, however, come in pink, green, blue, yellow and white, so it's at least cheerful. Apple has designed contrasting cases with rows of small holes cut out of the back – maybe the C actually stands for Connect Four.

3. The iPhone now knows who you are. As rumoured, the 5S will be able to recognise you by your fingerprints. Touch the home button to unlock the phone, or make a payment on iTunes.

4. Apple won't keep a copy of your biometric data. The scanner converts fingerprint images into a digital signature that is then sent over the web. Apple says the scanner won't be available to third party app developers. It is encrypted, stored on the phone's chip, and not on its own servers or on the iCloud backup service. Which hopefully makes it snoop-proof.

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Apple iPhone 5S Spec & Photos

Apple iPhone 5C Spec & Photos