eSIM
What Is an eSIM? How It Works, Benefits, and Device Compatibility
An eSIM, short for embedded SIM, is a digital SIM card built directly into a device’s motherboard. Instead of inserting…
Category: eSIM
Articles covering eSIM technology, standards, market developments and deployment considerations. eSIM is the broader term for the combination of eUICC hardware and GSMA remote SIM provisioning specifications that allow operator profiles to be managed over the air. Coverage spans SGP.02, SGP.22 and SGP.32, the shift from physical SIM to embedded connectivity, and what these changes mean for IoT engineers, device manufacturers and enterprise connectivity teams.
eSIM
From Hardware Lock-In to Software Control: How eUICC Is Redefining Global IoT Connectivity
For most of the history of cellular connectivity, the SIM card decided everything. Which network you were on. Which country…
eSIM
The Most Underestimated Chip in the World
In 1969, a 32-kilogram computer running at 2MHz guided three astronauts to the Moon and back. It had 4KB of…
eSIM
Cellular Technology Selection for eUICC IoT Deployments: LTE-M, NB-IoT and When 4G Makes Sense
Most of the conversation around eUICC in IoT focuses on the provisioning layer – SGP.32, eIM platforms, remote profile switching,…
eSIM
eUICC SIMs, eSIM Routers and the Specs That Matter: M2M and IoT Guide 2026
eUICC SIMs, eSIM Routers and the Specs That Matter: A Complete Guide for M2M and IoT in 2026 The word…
eSIM
The SIM Reseller Reckoning
There are thousands of businesses in the UK and Europe right now whose core value proposition is built on a…
eSIM
iSIM: The End of the SIM as a Component
The SIM card turned 30 in 2021. For three decades it sat in virtually every mobile device on the planet…
eSIM
What Comes After SGP.32? The eSIM Transition, the Industry Reckoning, and What Happens Next
The GSMA finalised SGP.32 in 2023. The ink was barely dry before the industry started calling it the future of…
eSIM
eUICC Explained: The Stack Behind eSIM and Who Actually Controls the Connection
eSIM gets talked about as though it’s one thing. It isn’t. The term covers a form factor, a software specification,…
eSIM
Top 10 IoT eSIM Providers in the UK (2025)
Why eSIM is now the default for serious IoT Plastic SIMs were fine when you had ten devices in one…