What is an eSIM and what makes it special?

EDGE and GPRS are technologies for data transmission within the framework of 2nd generation mobile communications.

The embedded SIM for IoT projects.

Unlike the classic SIM card, which comes in the form of a chip on a plastic carrier, the embedded SIM is merely a chip that is permanently installed in the end device. It is about 5 x 6 millimetres in size and completely dispenses with the familiar plastic carrier. Instead, it is soldered in during production so that it is no longer necessary to insert a SIM card in the terminal. The data for using the mobile phone network are uploaded via an electronic profile, for example via Bluetooth.

Advantages of the eSIM for M2M communication

Space-saving: Since the embedded SIM is soldered directly in the device, it requires much less space in the end device than a conventional SIM card. As a result, end devices can be made much more compact. The space that would otherwise be required for the M2M SIM and the SIM card slot can be used for other purposes or not at all.

Always the right format: SIM cards come in different formats, but the eSIM is always the same. With an eSIM, there is no need to consider which SIM format would be required for the device.

Resource-saving: An eSIM comes without a plastic carrier or packaging. This saves plastic waste and protects the environment. In addition, the SIM does not have to be sent to the user independently of the product, like a classic SIM card. This additionally saves emissions for delivery.

Ready to use immediately : Instead of waiting until a SIM card is delivered by mail and then still being inserted into the end device, the eSIM can be used immediately. The network operator data is transferred digitally and the device would be ready for use.

Mechanical security: The fact that the eSIM is soldered onto the circuit board of the end device makes it virtually impossible to steal the SIM card and misuse it. In addition, the eSIM is less vulnerable in environments with strong movements. For example, a classic SIM card could slip in the SIM card slot, causing the connection to break. This risk is eliminated with an eSIM. This is especially important in IoT and M2M projects where the end device is moving a lot and strongly. For example, our eSIMs are installed in e-bike batteries from the company AES. This company supplies the bike batteries for Deutsche Post.