The iPhone 5S is now available unlocked at SIM-free. Josh Lowensohn/CNET People who like their phones unlocked and SIM-free can now pick up an iPhone 5S in that state directly through Apple.

The most obvious new feature of the iPhone 5S is the new Touch ID fingerprint sensor, which is ingeniously built into the Home button and allows you to easily unlock the phone using your fingertip.

Max (above, gaining access) - a seal point Russian blue - is not the first moggy to successfully use Touch ID. Technology website Tech Crunch showed in 2013 how a cat's paw could unlock an iPhone 5S ...

Apple iPhone 6 (Unlocked) 4.5 Bottom Line The Apple iPhone 6 is the right iPhone at the right size, and one of the few unlocked phones that can be used on any of the four major U.S. carriers.

Apple has begun offering unlocked, SIM-free iPhone 5S handsets to customers in the US. The company's latest iOS smartphone comes without any carrier attachment starting at $649 (£401) for the ...

You see, some people have been worrying that with the new Touch ID, a biometric fingerprint sensor built into the iPhone 5S, they will have their fingers cut off.

This video shows a Japanese iPhone 5S user using his nipples to lock and unlock the new iPhone 5S, which has a fingerprint sensor built-in. Apparently, the sensor works on nipples and toes!

The iPhone 5 scored 1,305, just over half the power of the 5s; the just-announced 5c scored similarly at 1,282; the older iPhone 4s scored a low 412; and older still, the iPhone 4, scored a mere 206.

The phone requires a GSM-compatible SIM, so it can handle either AT&T or T-Mobile.