Conflict is brewing in the mobile world over the adoption of a new, smaller standard for the SIM card — the chip in each GSM phone that dictates which network you connect to and your cellphone number.

The SIM cards that fit into those tiny slots in your cell phone and tell your cellular network to whom your calls are to be charged come in four different sizes. With the only real difference between ...

Want to squeeze your current SIM card into your brand new iPhone 5? Check out our DIY guide to find out how. Katie Collins Principal Writer Katie is a UK-based news reporter and features writer.

Just in case a micro-SIM card is too bulky for you, Germany’s Giesecke & Devrient (G&D) has announced a nano-SIM card, which is about 30% smaller than the micro-SIM and 60% smaller than a SIM card.

Find out how to trim your own micro-SIM card for use in phones that require this new format. Sharon Profis Former Vice President of Content, CNET Studios As vice president of CNET Studios, Sharon led ...

ETSI has standardized a new form factor (4FF) for the SIM card, 40% smaller than the current smallest design. At its 55th meeting held on 31 May and 1 June 2012 in Osaka, Japan, ETSI’s Smart Card ...

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