iSIM: The Future of SIM Technology

iSIM, or Integrated SIM, is the latest innovation in SIM technology that promises to revolutionize the way we think about mobile devices.

The term iSIM (or iUICC & ieUICC) refers to an integrated SIM, eliminating the need for a separate physical SIM chip in formats like 4FF, 3FF, 2FF, or MFF2. Instead, it is integrated directly with the processor core and utilizes the encryption capabilities of the SoC (System on a Chip) on a cellular module. Essentially, an iSIM can be envisioned as a shrunken SIM card incorporated within the SoC, effectively becoming its operating system. The iSIM adheres to the GSMA's eSIM and RSP specifications.

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Integrated SIM (iSIM) represents the next evolution in SIM technology, advancing beyond eSIM by integrating SIM functionality directly into a dedicated area within the System on Chip (SoC).

This space is protected by a tamper-resistant element (iTRE) or secure enclave, enhancing security. iSIM offers significant advantages, consuming up to 70% less power than traditional discrete SIMs and being 98% smaller than eSIMs, paving the way for ultra-power-efficient devices that were previously unimaginable.

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iSIM Evaluation Kit

Unlock the potential of cutting-edge iSIM technology with our pioneering iSIM Evaluation Kit. This comprehensive solution offers true out-of-the-box connectivity, allowing developers and enterprises to test iSIM technology on their connected devices before scaling projects to full deployment.

The iSIM Evaluation Kit features a powerful combination of Kigen's secure iSIM OS, the Quectel BG773A module, Sony’s Altair ALT1250 chipset, and Com4's advanced Connectivity Management Platform. Together, they provide a seamless environment for evaluating iSIM capabilities, empowering you to innovate with confidence.

Includes:

Com4 iSIM Profile
Connectivity Management Platform
Quectel Module & Sony Chipset
Supporting CAT-M1/NB1/NB2
100 MB of data per SIM per month
A 60-day validity period

Pricing: NOK 399 ($39), One-time fee.

*Limited availability of kits. Customers must agree to Com4's standard terms and conditions before onboarding.

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Ultra-Compact, Low-Power Module

The iSIM-enabled Quectel BG773A Eval Kit (EVK) from Com4 offers a CAT-M1/NB1/NB2 module, perfect for IoT applications like wireless POS, smart metering, tracking, and wearables.

Compact and Efficient Design

The module’s SMT form factor (14.9mm × 12.9mm × 1.9mm) reduces the footprint by 98% compared to traditional eSIM setups, allowing for more compact device designs.

Reduced Power Consumption

Built-in support for power-saving mode (PSM) and extended discontinuous reception (eDRX) minimizes power usage. The iSIM further reduces standby power by up to 70%, making it ideal for devices with lifetime batteries.

Cost Savings in Large-Scale Deployments

iSIM simplifies PCB design, reducing components and potentially lowering manufacturing and logistics costs by up to 50% for large IoT deployments.

Comprehensive Security and Data Protection

Integrated Security Elements (ISE) with GSMA-standardized iSIM ensure compliance with TCA and Global Platform standards.

Streamlined Deployment

A pre-provisioned Com4 iSIM profile eliminates the need for an external SIM card, simplifying and accelerating the deployment process.

Differences between iSIM and eSIM

eSIM

eSIMs are similar to traditional SIM cards in that they have a dedicated chip that stores SIM information. However, eSIMs are much smaller than traditional SIM cards, making them ideal for use in smaller devices like wearables and IoT devices.

iSIM

Unlike physical SIM cards that require a dedicated slot or eSIM/eUICC that needs a separate chip for setup, iSIM is not soldered onto the device's circuit board. Instead, it has a designated area on the system on chip (SoC) on a cellular module with tamper-resistant protection. Similar to eSIM, iSIM enables remote provisioning of network profiles by connectivity providers.

Not unchanged. While iSIM follows the same GSMA eUICC and RSP standards as your current setup, each profile must be freshly provisioned to the iSIM's unique eUICC ID via remote SIM provisioning, not copied over as-is. Com4's iSIM Evaluation Kit lets you validate compatibility before scaling to full deployment.

Yes. Com4 supports SGP.32 for remote SIM provisioning and management in IoT deployments.

iSIM can be used in compact, low-power IoT devices such as asset trackers, smart meters, industrial sensors, wireless POS devices and wearables.

An iSIM integrates SIM functionality directly into a secure area of a device's System on Chip (SoC). This removes the need for a separate SIM chip while supporting remote provisioning and management of network profiles.

An IoT SIM is designed for machine-to-machine connectivity and can use different form factors, including physical SIMs and eSIMs. An iSIM integrates the SIM functionality directly into the device's chipset, reducing the need for separate SIM hardware.

Transform your business and reduce your Total Cost of Ownership (TCO) by up to 50%

At Com4, we're committed to delivering the best SIM technology to our customers. That's why we partner with the world's leading manufacturers to bring you the latest iSIM-enabled devices.
So why wait? Experience the future of SIM technology today with Com4.

Talk to an expert

iSIM: The Future of SIM Technology

Trusted by

Integrated SIM (iSIM) represents the next evolution in SIM technology, advancing beyond eSIM by integrating SIM functionality directly into a dedicated area within the System on Chip (SoC).

iSIM Evaluation Kit

Includes:

Key Benefits

Ultra-Compact, Low-Power Module

Compact and Efficient Design

Reduced Power Consumption

Cost Savings in Large-Scale Deployments

Comprehensive Security and Data Protection

Streamlined Deployment

Differences between iSIM and eSIM

eSIM

iSIM

FAQs

Can our existing eUICC profiles be reused unchanged on the iSIM?

Does Com4 support SGP.32?

Where can the iSIM be used?

How does the iSIM work?

What is the difference between an IoT SIM and an iSIM for IoT?

Transform your business and reduce your Total Cost of Ownership (TCO) by up to 50%

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