eSIM

Bringing eSIM capability to the channel

  • Seamless, reliable IoT connectivity
  • Local rates for data consumption
  • Access to 500+ networks worldwide

Organisations are increasingly seeking a seamless, reliable IoT connectivity solution to avoid challenges associated with achieving global coverage, managing continuously evolving cellular technologies, and navigating complex manufacturing logistical processes – among others. With remote SIM card management capabilities, including secure OTA provisioning, as well as multi-carrier profile support, eSIM technologies can deliver this solution. Zest4’s global advanced connectivity management and eSIM capabilities simplify the complexity of achieving network access for truly global resilient coverage, navigating evolving network technologies, and managing complex logistical processes for your IoT deployments with a single eSIM.

The Zest4 solution enables seamless, remote SIM provisioning (RSP) allowing you to use a single SIM for the entire lifetime of a device for three key use cases.

Benefits of eSIMs for Enterprises

Reduced connectivity costs: An eSIM can be configured with multiple network subscriptions and programmed to load or change its subscription depending on the situation. That enables businesses to take advantage of local connectivity rates and avoid roaming charges.

No physical SIM switching costs: Remote SIM provisioning prevents businesses from having to purchase new SIM cards and pay to have old ones physically replaced.

Easier and more cost-effective to deploy IoT connected devices: eSIMs will benefit businesses that use IoT systems, particularly those with large-scale machine-to-machine (M2M) deployments like power plants, oil and gas providers, manufacturing facilities and warehouses. This is because, with eSIMs, IoT deployments are future-proof, protected from the impact of network changes and service terminations. Companies can commit to global IoT deployments with confidence knowing that they can manage all device connectivity remotely.

SIM versus eSIM

The explosion of the Internet of Things (IoT) has shone a light on the limitations of traditional SIM cards.

A traditional SIM card essentially locks you in to one mobile network and the only way to change networks is to physically swap out the SIM. This is an inefficient and potentially very expensive process.

eSIMs get around this by being universally compatible with any mobile network and capable of being remotely provisioned. In other words, networks can be managed and changed over the air, and there’s no need to physically remove and change the SIM. Learn more about the mechanics behind an eSIM later on.

This is particularly important for IoT providers because of the sheer number of devices, some of which are in remote locations and/or very difficult to access. In effect, eSIM technology is the key to future-proof IoT deployments.

What’s the difference between remote SIM provisioning and global roaming? You might be asking: what’s roaming all about then? Traditional SIM cards do provide access to other networks in other regions and countries. That’s roaming. True. But it’s different with an eSIM. The two key differences between global roaming and remotely provisioning an eSIM are control and cost.

With a traditional global roaming SIM, all coverage is dictated by the MNO. Your SIM card is still tied to that first MNO and you have no say over what network you connect to. Plus, depending on the arrangement, you’re likely to incur premium roaming charges that can really stack up, particularly if you’re using a lot of data.

With an eSIM, all control is with the customer/user. You can remotely programme the SIM to use local networks at local rates, eventually sidestepping the roaming cost-overhead. Whilst it’s still relatively early days, it’s expected that some form of roaming will still be used in an eSIM until there are enough profiles for universal coverage.

Benefits of eSIMs for Manufacturers

Reduced supply chain costs and complexities: For a manufacturer, the fewer stock keeping units (SKUs) the better. One SIM card for all networks means one SKU rather than multiple SKUs, which simplifies production and distribution and saves on inventory costs.

More control over connectivity: Installing an eSIM at the manufacturing stage gives device makers more control and influence over connectivity. They may even offer connectivity for free or as part of a global data pack

New use cases: With miniaturisation and no need to physically change SIMs, products and devices previously thought impossible to connect, can now become reality.

A competitive advantage: As eSIMs are still new, manufacturers can gain a competitive advantage by building devices with in-built connectivity that can be easily managed and changed over the air, since therein lies the full potential of the IoT.

Single SIM. Singular Expertise.

The Zest4 eSIM offering provides a global, flexible, and “future-proofed” IoT connectivity solution that goes beyond traditional eSIM offerings to deliver technology-agnostic network access worldwide, with support for value-added services and comprehensive eSIM management.

Carrier-Agnostic: Single eSIM: Embedded or removable, IoT-grade and ruggedised eSIMs that are remotely programmable based on GSMA eSIM specifications, with the option to integrate eSIM applets for secure authentication and network monitoring

Network Connectivity: Single eSIM for global, resilient connectivity and access to multiple carriers and multiple technologies (2G/3G/LTE), hosted on our own independent network to enable greater control and secure access via VPNs and APNs, as well as single data bundles via multi-IMSI capabilities

Single User Interface: Single user experience to manage connectivity across multiple networks with comprehensive provisioning tools, real-time reports for data usage and billing, proactive thresholds and alerts, as well as self-service advanced diagnostics

eSIMs are set to become a key facilitator of IoT growth. Remote provisioning makes it easier for enterprises to adapt quickly to changing business environments without the need for field visits and hardware changes.

Installing one SIM for all devices in all regions at the manufacturing stage makes IoT deployments simpler and more cost-effective, both for manufacturers and MNOs. And although eSIMs require a significant investment of time and effort to set up, they can deliver major returns in flexibility and performance, particularly for large-scale IoT deployments.

Of course, an eSIM implementation is where things can get complicated. There are a lot of components to consider: the eSIMs themselves, already deployed IoT devices, required integrations, management platforms for your subscriptions, and management platforms for your eSIMs, traditional SIMs and IoT devices. That’s a lot of potential partnerships, and what do they say about too many cooks?

To keep an eSIM implementation as simple as possible, the more you can do with each partner the better. Some of those who’ve entered the eSIM market at this early stage are already full-service providers offering most if not all of the above as part of a turnkey service. This makes it easier to implement and work with eSIMs, with the potential to gain significant long-term benefits once the technology is tamed.