Piece is about the size of a credit card, albeit it a little thicker, measuring 83 x 55 x 4 mm (3.3 x 2.2 x 0.2 in). Users slot a secondary SIM card (either a Micro SIM or a Nano SIM if used with a ...

NTT DoCoMo has announced a new portable SIM card, it has been designed to separate your SIM card from your smartphone, and the company will be showing off a prototype of the device at the Mobile Asia ...

NTT Docomo has announced the development of a wireless Portable SIM prototype that can be waved in front of a compatible smartphone to provide network authentication information. The device could ...

While most players in the mobile phone industry would agree that near-field communication is an up-and-coming technology, some remain divided over how it should be deployed. Near-field communication ...