What Is an eSIM?

An eSIM, or embedded SIM, signifies a new approach to connectivity, specifically tailored to IoT’s unique demands. Unlike the standard consumer eSIM, which focuses on mobile device compatibility and flexibility, IoT eSIMs meet industry standards and requirements for secure, long-term, resilient connectivity in diverse environments.

KORE’s eSIM technology is built for IoT, ensuring reliability, scalability, and remote management across massive deployments. Let's dive into what an eSIM is and its essential role.

Key Features of eSIM:

IoT eSIMs require greater durability, security, and efficiency than consumer eSIMs for complex operational demands. Here are the key features that distinguish eSIM in IoT applications:

• Remote Provisioning: IoT eSIMs enable remote profile updates and switching via eUICC, eliminating manual intervention. This is especially critical for IoT devices in remote or difficult-to-access areas.
• Enhanced Security: eSIMs eliminate the need for physical removal or replacement when a network is sunsetted, allowing devices to maintain a more secure design. It can be remotely locked or disabled, reducing the risk of tampering and maintaining device integrity.
• Long-Term Reliability: IoT eSIMs ensure long-term connectivity, operating for years or decades in demanding environments.

How Did the Technology Develop?

Traditional SIM cards, known as Subscriber Identity Modules, have long connected devices to mobile networks. However, physical SIM cards became limiting as IoT applications grew, particularly for devices deployed in remote or rugged environments.

The GSMA introduced the eSIM standard in 2016, enabling remote management and simplified IoT network provisioning. By enabling “over-the-air” provisioning, eSIMs reduce the need for physical SIM swaps and provide more flexible connectivity options.

Benefits of eSIM for IoT Connectivity

For IoT applications, the advantages of eSIM technology are game-changing:

1. Future-Proofed Connectivity: Many IoT devices have remained in the field for 10+ years, during which time network standards and carrier relationships may evolve. This technology allows devices to switch carriers and update settings as needed, ensuring connectivity throughout their lifecycle. This adaptability is essential in IoT sectors like fleet management, healthcare, and smart cities, where reliable long-term connectivity is crucial.
2. Cost-Efficiency Through Remote Management: IoT eSIMs enable remote provisioning, avoiding costly site visits for SIM swaps or network changes via a central platform.
3. Simplified Logistics and Reduced Downtime: With eSIMs, companies can set up devices with an initial carrier profile and later modify the network settings remotely. This simplifies logistics, as devices don’t need to be returned to a specific location for reprogramming. Industries with large mobile fleets or extensive asset networks, like transportation and logistics, benefit significantly from this streamlined approach.
4. Security and Reliability: Embedded eSIMs are secure, durable, and support GSMA IoT SAFE for cloud communication, ideal for finance and healthcare industries.
5. Global, Borderless Connectivity: For IoT devices that need to operate globally, eSIM’s ability to switch between carriers in different regions ensures consistent and reliable coverage. This feature is particularly beneficial for companies deploying IoT solutions that cross borders, such as international logistics and supply chain operations.

Key Use Cases

1. Fleet and Asset Tracking: The logistics sector relies on connectivity to track and manage assets as they move across geographies. eSIMs simplify global deployments by enabling one profile and remote network switching based on vehicle location.
2. Healthcare and Medical Devices: Many healthcare devices now operate in mobile environments, from remote patient monitoring systems to emergency medical equipment. eSIM’s ability to adapt to network changes and provide reliable connectivity is crucial for healthcare IoT, ensuring that these devices work seamlessly no matter where they are.
3. Smart Cities and Utilities: Smart city solutions such as water meters, energy grids, and public safety systems benefit from eSIM's flexibility. These IoT devices are often deployed for long periods and require reliable connectivity without frequent physical maintenance, making eSIM an ideal choice.
4. Consumer Electronics: Wearables and other consumer devices are increasingly adopting eSIM technology to offer global connectivity without requiring users to switch SIM cards when traveling. This convenience has made eSIM popular among manufacturers looking to streamline connectivity across regions.

Compared to Similar and Compatible Technologies

While eSIM and traditional SIMs share many core functions, some key differences make them particularly beneficial for IoT:

• Remote Provisioning: eSIMs, using eUICC, enable remote profile changes, unlike traditional SIMs requiring physical swaps. This flexibility is essential for IoT deployments, enabling seamless carrier changes without manual intervention.
• Flexible Form Factor: Both eSIMs and traditional SIMs can be either removable or embedded. They’re designed for compact IoT devices or removable formats, supporting diverse IoT applications.
• Multi-IMSI Compatibility: eSIM technology can integrate with Multi-IMSI capabilities, allowing devices to access multiple network identities. This compatibility enhances connectivity options for global IoT deployments, enabling devices to switch carriers as needed across regions.

Choosing the Right Partner

Implementing eSIM is more than just a technological upgrade – it’s a strategic decision. Working with a trusted partner like KORE ensures that you gain access to a true solution that provides the benefits and flexibility needed for IoT. Our team understands the unique connectivity challenges of IoT and offers end-to-end support, from initial setup to ongoing management.

Future of eSIM in IoT

The demand for eSIM in IoT is only growing. Analysts project that by 2025, eSIM will support over 2 billion devices globally across various sectors, transforming how we approach connectivity in an increasingly connected world. As more industries adopt this technology, the need for reliable, scalable solutions will become even more critical.