For technical IoT product managers and hardware engineers, the SIM is no longer just a piece of plastic. It has evolved into a strategic component of the device architecture, affecting everything from the Bill of Materials (BOM) and power budget to global logistics and long-term lifecycle management. Choosing between a traditional physical SIM, an eUICC-capable eSIM, or an integrated SIM (iSIM) requires balancing technical constraints with commercial scalability. This guide breaks down these technologies to help you decide which architecture supports your deployment's specific needs.

This article discusses different connectivity solutions available to payment providers and merchants of POS systems and emphasizes cellular connectivity as the most effective solution.

1oT is the first company in Europe to have a site SAS-SM provisionally certified for offering the eIM for the IoT eSIM solution.

When you start expanding your operations, the complexity of managing an IoT project on a global, or even regional, scale grows as well.

Let's look at the connectivity elements of autonomous and teleoperated vehicles and the importance of a connectivity management platform and suitable hardware.

As the demand for more flexible and efficient SIM provisioning services grows, mobile network operators (MNO) and mobile virtual network operators (MVNO) must understand the benefits and opportunities that consumer eSIM and SM-DP+ offer.

1oT unveils a two-year development initiative to create a comprehensive eSIM solution and connectivity management platform (CMP) for the mobility industry.

Let's review the functions of eIM and study its role in the IoT eSIM architecture.

In this blog post, we'll look at the different methods for downloading profiles described in SGP.32.

In August 2022, we launched our eSIM RSP infrastructure on Amazon Web Services (AWS). This made us the first carrier-independent eSIM connectivity service provider with its own infrastructure and connectivity management platform (CMP).

The first blog post in the IoT eSIM Diaries series focuses on what the IoT eSIM is and how it works.

By combining the advanced capabilities of the Teltonika Networks' hardware and the flexibility of 1oT's eSIM technology, our partnership provides seamless and robust IoT connectivity solutions.

In this blog post, we will examine the issues associated with switching connectivity providers using eSIMs (specifically the machine-to-machine variant known as SGP.02) and discuss better available alternatives.

Today, we proudly present the consumer variant - certified by GSMA SAS-SM - that enables network operators to provide eSIM services to consumer devices like smartphones, tablets, and smartwatches.

In this blog article, we will cover how 1oT has used eSIM in combination with a powerful connectivity management platform to provide cellular coverage in Africa.

Our recently revamped eSIM Management tool is probably the most important element for easy management of global IoT deployments.

Let's look into the most important number combinations and IDs found on a SIM card, what they mean, and why they are necessary.

Why should we care about iSIM today? And how does an iSIM add value to an eSIM?

What are the unique capabilities of eSIM, and what challenges does it face? Are there any downsides to using eSIM?

Think of this article as your step-by-step guide to getting started with 1oT eSIM.

There are two different SIM technologies and four form factors used today. SIM card is needed to connect a device to a carrier.