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ARM wants mobile or IoT devices to include a tiny integrated SIM card:
Every millimeter of space matters when you're trying to build increasingly complex electronics into increasingly tiny packages, and the relatively spacious SIM card has long been an area of frustration for hardware manufacturers. Now, the chip design company ARM may have an answer: an integrated component called an iSIM that's built into the same chip as the processor.
ARM says the iSIM will take up a "fraction of a millimeter squared," whereas the current SIM standard — Nano SIMs — are about 12.3 x 8.8mm in size, not including the hardware usually needed to house them. Not only will that save space, but ARM says it'll more importantly save on costs, too: instead of paying "tens of cents" per card, manufacturers will be paying single-digital cents.
Also at CNET, Tom's Hardware, and Wccftech.
Related: Infineon Demos a 1.65 mm^2 eSIM Chip
(Score: 0) by Anonymous Coward on Friday February 23 2018, @10:09AM
Not quite. Your phone number is not tied to the battery, and your new phone wants a different voltage anyway, so you can't move your old battery over.
Most people don't care about replacing the battery. They want an excuse to buy the new phone anyway. But most people will at some point be in the situation of wanting to move their phone number to a different phone for one reason or another.