iSIMs: How a ‘Zero Footprint’ Authentication Token is Poised to Democratize IoT

iSIM: How a “zero-footprint” authentication token is preparing for IoT democracy
Bigger is not always better. In IoT, downsizing can bring significant benefits, and the arrival of integrated SIM (iSIM) technology is poised to provide a major boost.
Embedded SIMs (eSIMs) represents a step forward from SIM card types, allowing smaller devices and more capable IoT devices to be designed and manufactured. iSIMs further advance the state of the art, helping to minimize form factors, improve performance and even streamline supply chains. Industry observers agree that the market is hot; According to Counterpoint Research, the number of eSIM and iSIM devices shipped is expected to reach more than 6 billion by 2025. In traditional cellular applications, a physical hardware communication module allows devices to establish a network connection, with a SIM card or eSIM present to identify and authenticate subscribers. . iSIM technology integrates these functions into a single, purpose-built System on a Chip (SoC) within the communication modules, giving it a “zero footprint”. Whether it’s a card or embedded, a SIM is a small computer chip that requires power to function. Since iSIM-enabled devices do not require an external chip to provide power, iSIM can also reduce power consumption in devices with a small footprint.

By eliminating the need for a physical SIM or eSIM, iSIM technology addresses several important challenges for IoT innovators, especially when it comes to miniaturization. iSIMs make it possible to completely eliminate SIM card slots and SIMM sockets, which currently occupy a large part of the PCB area of ​​small devices. The advantage is also the elimination of production steps and a reduction in the energy requirements of the equipment.

Industries where every fraction of a millimeter matter – such as wearables, e-textiles, and smart trackers – are the most important markets for iSIM technology. But what else can this next-generation technology do for IoT innovation?