T-Mobile USA has developed a new durable SIM card that is ideal for providing wireless connectivity to smart electric meters, as the company tries to expand its market opportunity beyond cell phones.
On Thursday, T-Mobile introduced the embedded SIM, which is much smaller than traditional SIM cards that fit into mobile phones and other mobile devices. The tiny is made out of silicon instead of plastic and is about the size of a pin head. It is designed to be durable enough to withstand environmental factors, such as temperature, humidity, and motion. And as a result T-Mobile says it's … Read more