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GSMA SGP.32 – The Next Standard for IoT Connectivity

Smarter, scalable, and future-ready IoT eSIM technology

The GSMA SGP.32 standard represents the next evolution of eSIM technology — designed specifically for IoT. It enables remote, secure, and scalable SIM provisioning without manual handling or user interaction. Built for efficiency, security, and interoperability, SGP.32 simplifies IoT deployments and prepares businesses for the future of connected devices.

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Com4 embedded IoT SIM chip designed for SGP.32 eSIM standard

What Is GSMA SGP.32?

SGP.32 is a global GSMA eSIM specification created to support IoT devices that operate without user interfaces.

It enables remote SIM provisioning (RSP), allowing eSIM profiles to be activated, switched, or updated securely over the air — across thousands of devices, anywhere in the world.

Earlier eSIM standards (SGP.02 for M2M and SGP.22 for consumer devices) were limited by complex provisioning processes or required manual interaction.

SGP.32 bridges that gap, introducing lightweight protocols and remote management designed specifically for IoT scalability and low-power performance.

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Connected shipping trucks using IoT devices for global fleet monitoring and data insights

How SGP.32 Works

SGP.32 introduces two new components that enable smarter and more efficient IoT eSIM management:
  • eIM (eSIM IoT Remote Manager): The remote management system that securely provisions and updates eSIM profiles.
  • IPA (IoT Profile Assistant): A lightweight module integrated into the IoT device that communicates with the eIM using optimized protocols such as CoAP, UDP, and DTLS.

Together, they make large-scale eSIM deployment and management fully automated — even for remote or battery-powered devices.

Evolution of eSIM Standards

From M2M to IoT – how eSIM technology has advanced
Feature SGP.02 (M2M) SGP.22 (Consumer) SGP.32 (IoT)
Primary Use Case Industrial M2M systems Consumer electronics IoT devices
Profile Management Server-driven via SMS/TCP-IP User-initiated via device UI Remote and automated via IoT Profile Assistant
User Interaction None Required None
Protocols SMS / TCP/IP TCP/IP Lightweight (CoAP, UDP, DTLS)
Power Optimization Limited Moderate High
Scalability Complex Manual Designed for large-scale IoT
Security Standard encryption Consumer-grade End-to-end encryption
Best Suited For Industrial modules Smartphones, tablets Sensors, meters, trackers, industrial IoT

Why SGP.32 Matters for IoT

The new GSMA SGP.32 standard addresses the challenges of managing IoT connectivity at scale:
Control

Scalable eSIM Management

Remotely manage entire fleets of IoT devices with centralized provisioning and updates.

Battery

Optimized for Low-Power Devices

Lightweight protocols minimize power usage, extending battery life in small and embedded IoT devices.

Cloud

Simplified Deployment

No physical SIM handling required. Devices connect automatically and securely across multiple networks.

Security

Enhanced Security

SGP.32 introduces improved encryption and authentication for safe provisioning and profile management.

Global connectivity

Future-Proof Connectivity

Fully compatible with LTE-M, NB-IoT, 4G, 5G, and satellite networks — ensuring long-term global operability.

Norwegian forest symbolizing Com4’s roots and IoT connectivity in the Nordics

The Com4 Advantage

At Com4, we deliver GSMA SGP.32-ready IoT connectivity with unmatched reliability and flexibility.

Our IoT SIM and eSIM solutions are designed for secure, scalable, and global communication — built on Nordic engineering excellence and private core infrastructure.

  • Multi-operator connectivity in 190+ countries.
  • Secure provisioning via Com4’s private core network.
  • Compliance with GSMA SGP.32.
  • Full support for LTE-M, NB-IoT, 4G, 5G, and satellite.
  • Reliable and redundant architecture for mission-critical IoT.
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Future-Ready IoT Connectivity

SGP.32 represents a major step toward simplified, scalable, and secure IoT connectivity.

By adopting Com4’s eSIM solutions, your business gains future-proof flexibility, seamless remote management, and true global reach.

Whether you’re deploying connected products today or planning for next-generation IoT, Com4 provides the foundation for secure and reliable connectivity — anywhere.

 

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